Q_Id int64 337 49.3M | CreationDate stringlengths 23 23 | Users Score int64 -42 1.15k | Other int64 0 1 | Python Basics and Environment int64 0 1 | System Administration and DevOps int64 0 1 | Tags stringlengths 6 105 | A_Id int64 518 72.5M | AnswerCount int64 1 64 | is_accepted bool 2
classes | Web Development int64 0 1 | GUI and Desktop Applications int64 0 1 | Answer stringlengths 6 11.6k | Available Count int64 1 31 | Q_Score int64 0 6.79k | Data Science and Machine Learning int64 0 1 | Question stringlengths 15 29k | Title stringlengths 11 150 | Score float64 -1 1.2 | Database and SQL int64 0 1 | Networking and APIs int64 0 1 | ViewCount int64 8 6.81M |
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39,524,577 | 2016-09-16T05:55:00.000 | 1 | 0 | 0 | 0 | python,tactic | 39,710,247 | 1 | true | 1 | 0 | Found it, the API itself provides a method of inserting a sObject to any sType in the system. It was by using server.insert( sType, data = {}) where data is a dictionary of key value pairs. | 1 | 0 | 0 | I wish to create a new sobject for a specific stype.
Currently I am using server.get_unique_sobject( stype, data), But it assumes that an sobject is already present i.e it creates a new sobject iff there is no combination of sobject with same data already existing in the DB.
I wish to create a new sobject each and ever... | How to create an sObject for a sType without using get_unique_sobject method? | 1.2 | 0 | 0 | 21 |
39,524,917 | 2016-09-16T06:20:00.000 | -1 | 0 | 1 | 0 | python-3.x,pyinstaller | 39,525,032 | 4 | false | 0 | 0 | You seem to be doing everything from C: - which is a protected area on any up to date version of windows.
I would suggest moving it somewhere more accessible, such as your documents folder or even your desktop. It could just be a permissions issue.
Alternatively, you could try running pyinstaller as an admin. Usually t... | 1 | 1 | 0 | I have pyinstaller in my basic c:\ folder, myfile.py in my c: Pyinstaller folder and both pyinstaller myfile,py and pyinstaller pyinstaller\myfile.py give "failed to create process" What am I doing wrong? | python 3 pyinstaller consistently gives "failed to create process" | -0.049958 | 0 | 0 | 3,220 |
39,525,214 | 2016-09-16T06:41:00.000 | 0 | 0 | 0 | 1 | java,python,scala,apache-spark,pyspark | 39,530,209 | 2 | false | 0 | 0 | your question is unclear. If the data are on your local machine, you should first copy your data to the cluster on HDFS filesystem. Spark can works in 3 modes with YARN (are u using YARN or MESOS ?): cluster, client and standalone. What you are looking for is client-mode or cluster mode. But if you want to start the ap... | 1 | 0 | 1 | I have to send some applications in python to a Apache Spark cluster. There is given a Clustermanager and some worker nodes with the addresses to send the Application to.
My question is, how to setup and to configure Spark on my local computer to send those requests with the data to be worked out to the cluster?
I am w... | Configurate Spark by given Cluster | 0 | 0 | 0 | 35 |
39,530,054 | 2016-09-16T11:10:00.000 | 0 | 0 | 0 | 0 | python,c++,numpy,swig | 39,576,294 | 1 | true | 0 | 0 | Numpy's polynomial package is largely a collection of functions that can accept array-like objects as the polynomial. Therefore, it is sufficient to convert to a normal ndarray, where the value at index n is the coefficient for the term with exponent n. | 1 | 0 | 1 | I'm using SWIG to wrap a C++ library with its own polynomial type. I'd like to create a typemap to automatically convert that to a numpy polynomial. However, browsing the docs for the numpy C API, I'm not seeing anything that would allow me to do this, only numpy arrays. Is it possible to typemap to a polynomial? | Is it possible to create a polynomial through Numpy's C API? | 1.2 | 0 | 0 | 42 |
39,530,825 | 2016-09-16T11:52:00.000 | 0 | 0 | 0 | 0 | python,sublimetext3,sublime-text-plugin | 39,626,287 | 3 | false | 0 | 0 | It's possible in CudaText app, with Python API. API has on_change_slow event to run your code. And your code must find text x/y position, then call ed.attr() to highlight substring at x/y with any color. It's simple. | 1 | 0 | 0 | I am currently trying to extract information (manually) from a text file. The text file has a decent format (parsable), but it contains something like 'random chars'. These random chars are not completely random, by running an algorithm on them I am able to collect information. I am giving each char a positive integer.... | Sublime text change text color | 0 | 0 | 0 | 1,058 |
39,532,034 | 2016-09-16T12:53:00.000 | 0 | 0 | 0 | 0 | python,python-3.x,kivy,komodo,kivy-language | 39,537,143 | 2 | false | 0 | 1 | This only works for Komodo code intelligence. Run time is still limited to PYTHONPATH. To run a script that's using Kivy, even in your command line, the kivy source has to be on your PYTHONPATH.
You can add items to your PYTHONPATH in Komodo using Edit > Preferences > Environment then create a New environmental varia... | 1 | 1 | 0 | I'm trying to run a Kivy python file on Komodo IDE (for Mac) but its giving me this error
import kivy
ImportError: No module named kivy although if I drag-drop the file on the Kivy app its running normally,
any ideas ?, thanks | Can't run kivy file on Komodo | 0 | 0 | 0 | 141 |
39,536,762 | 2016-09-16T17:06:00.000 | 0 | 0 | 0 | 0 | python,proxy,web-crawler,google-trends | 41,170,050 | 3 | false | 0 | 0 | No one is going to write code for you.
But I can leave some comments because I have been using Crawlera proxies for the past few months.
With crawlera you can scrape Google Trends with new IP each time, or even you can use a same IP each time(its called session management in crawlera).
You can send a header 'X-Crawlera... | 1 | 1 | 0 | Since google trends require you to login, can I still use an IP rotator such as crawlera to download the csv files? If so, is there any example code with python (i.e python + crawlera to download files on google).
Thanks in advance. | Is it possible to use a proxy rotator such as crawlera with google trends? | 0 | 0 | 1 | 1,606 |
39,537,700 | 2016-09-16T18:10:00.000 | -1 | 0 | 1 | 0 | python,pycharm,xml-rpc | 44,059,972 | 1 | false | 0 | 0 | Hi I had the same problem as you. I solved the problem by making the line 127.0.0.1 localhost as the first line in /etc/hosts. The reason python console does not run is that python console tries to connect to localhost:pycharm-port, but localhost was resolved to the IPv6 addess of ::1, and the connection is refused. | 1 | 4 | 0 | Exception in XML-RPC listener loop (java.net.SocketException: Socket closed).
When I run PyCharm from bash , I get this error..As result: I cant't use python-console in pycharm Anybody know how to fix it ?
OS: ubuntu 16.04 | How to fix python console error in pycharm? | -0.197375 | 0 | 1 | 602 |
39,538,259 | 2016-09-16T18:45:00.000 | 0 | 0 | 1 | 0 | python,visual-studio,debugging,pygame,livewires | 39,582,747 | 1 | true | 0 | 1 | Thanks to Jack Zhai's suggestion, I figured it out.
When the breakpoint is hit, unpause the debugger (shortcut: F5)
Play to the point in the game you want to debug.
Repause the debugger using Break All (shortcut: Ctrl-Alt-Break)
Press F10 a few times; this makes it go a few more steps in the main livewires loop.
In t... | 1 | 1 | 0 | I've been making a small game for a homework assignment using Pygame with Livewires. I've been trying to debug it, but to no success; I can't get a look at the variables I want to look at before the main loop is executed. Though I can press F10 to skip over the main loop, that just stops the Autos and Watches window fr... | How to debug Pygame application with Visual Studio during runtime | 1.2 | 0 | 0 | 1,009 |
39,538,363 | 2016-09-16T18:52:00.000 | 0 | 0 | 0 | 0 | python,algorithm,graph,graph-theory,networkx | 39,538,477 | 3 | false | 0 | 0 | Why would bfs not solve it? A bfs algorithm is breadth traversal algorithm, i.e. it traverses the tree level wise. This also means, all nodes at same level are traversed at once, which is your desired output.
As pointed out in comment, this will however, assume a starting point in the graph. | 1 | 4 | 1 | Firstly I am not sure what such an algorithm is called, which is the primary problem - so first part of the question is what is this algorithm called?
Basically I have a DiGraph() into which I insert the nodes [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] and the edges ([1,3],[2,3],[3,5],[4,5],[5,7],[6,7],[7,8],[7,9],[7,10])
From th... | Given an acyclic directed graph, return a collection of collections of nodes "at the same level"? | 0 | 0 | 0 | 661 |
39,540,563 | 2016-09-16T21:49:00.000 | 0 | 0 | 0 | 0 | python,wxpython,wxnotebook | 39,541,649 | 1 | false | 0 | 1 | As you've guessed, care needs to be taken when destroying UI objects from their own event handlers. Not only is the current event handler still active, but there may be other pending events that are still in the queue, and if the target object has been destroyed when they are delivered then you can get a crash.
The be... | 1 | 0 | 0 | I want to dynamically create and delete pages in a notebook. In the main class I successfully create and add pages with a button. The pages are a separate class of course, and have a button inside.
I know I can put the button outside the notebook and delete them from the main class but I want to use page's own button t... | Self delete page in wx.Notebook | 0 | 0 | 0 | 224 |
39,540,741 | 2016-09-16T22:06:00.000 | 10 | 0 | 1 | 0 | python,ocr,google-cloud-platform,google-cloud-vision,text-recognition | 39,809,660 | 2 | false | 0 | 0 | I am unable to tell you why this works, perhaps it has to do with how the language is read, o vs 0, l vs 1, etc. But whenever I use OCR and I am specifically looking for numbers, I have read to set the detection language to "Korean". It works exceptionally well for me and has influenced the accuracy greatly. | 1 | 17 | 1 | I've been trying to implement an OCR program with Python that reads numbers with a specific format, XXX-XXX. I used Google's Cloud Vision API Text Recognition, but the results were unreliable. Out of 30 high-contrast 1280 x 1024 bmp images, only a handful resulted in the correct output, or at least included the correct... | Google Cloud Vision - Numbers and Numerals OCR | 1 | 0 | 0 | 5,635 |
39,541,393 | 2016-09-16T23:31:00.000 | 4 | 0 | 1 | 0 | python | 39,541,428 | 3 | false | 0 | 0 | In Python lists can be composed of mixed types, there is no way to do something like setting the "type" of a list. Also, even if you could, this "type" is not enforced and could change at any time. | 1 | 2 | 0 | (Maybe b/c I'm from a C++ world)
I want to verify some python variable is
list(string) or list(dict(int, string)) or SomethingIterable(string)
Is there a simple and unified way to do it?
(Instead of writing customized code to iterate and verify each instance..)
I emphasize that I understand in Python list can have elem... | How to do type verification in python? | 0.26052 | 0 | 0 | 214 |
39,541,655 | 2016-09-17T00:17:00.000 | 1 | 0 | 1 | 0 | python,matplotlib,data-analysis | 39,543,370 | 1 | true | 0 | 0 | Thank you for prompting me to look at this, as I much prefer 'step' style histograms too! I solved this problem by going into the matplotlib source code. I use anaconda, so it was located in anaconda/lib/site-packages/python2.7/matplotlib.
To change the histogram style I edited two of the files. Assuming that the curre... | 1 | 3 | 1 | Is there a way to configure the default argument for histtype of matplotlib's hist() function? The default behavior is to make bar-chart type histograms, which I basically never want to look at, since it is horrible for comparing multiple distributions that have significant overlap.
In case it's somehow relevant, the d... | Setting default histtype in matplotlib? | 1.2 | 0 | 0 | 602 |
39,542,539 | 2016-09-17T03:22:00.000 | 4 | 1 | 0 | 0 | python,raspberry-pi,kivy,led | 39,542,558 | 1 | false | 0 | 1 | Well apparently I didn't look hard enough. The solution is to copy "~/.kivy/config.ini" to "/root/.kivy/config.ini"
So the commands are
"sudo cp ~/.kivy/config.ini /root/.kivy/config.ini"
And then everything works happily together! | 1 | 1 | 0 | I want to make a kivy app for the raspberry pi that can use a touch screen. I was able to get the demos to work with the touchscreen with just "python ~/kivy/examples/demo/showcase/main.py". The issue comes when I need to start the app with "sudo python main.py", the touchscreen then ceases to work.
The app I am tryin... | Run Kivy app as root user with touch screen on raspberry pi | 0.664037 | 0 | 0 | 989 |
39,543,888 | 2016-09-17T07:06:00.000 | 0 | 0 | 1 | 0 | python,pygame | 39,551,714 | 4 | false | 0 | 1 | The only way to have the text entries separate to the pygame window is to use someVar = input("A string") so the text input is in the python shell or the command window/Linux terminal and then have pygame reference that var. | 1 | 0 | 0 | this is my first question. What I would like to achieve is in a normal window for the text-based game to be running, however I would also like to have a pygame window running as well that shows a map that updates. Thank you in advance. | Python/Pygame: Can you run a program whilst having a Pygame window that can still update? | 0 | 0 | 0 | 400 |
39,544,944 | 2016-09-17T09:03:00.000 | 2 | 0 | 1 | 0 | python,pip,pyautogui | 39,563,987 | 6 | false | 0 | 1 | I encountered the same error message as you did. This workaround worked for me. Try these steps in order...
Install PyScreeze 0.1.7.
Update PyScreeze to 0.1.8.
Install PyAutoGui.
I hope this helps. | 3 | 3 | 0 | I have been installing PyautoGui on my WIN10 PC. But I am getting the following error, i have been getting a lot of errors jut to get this far.
i have been reinstalling python so its destination folder is in C:\Python instead of C:\Users\Home\AppData\Local\Programs\Python\Python35-32 mabye thats why ? How do i fix t... | Installing PyAutoGUI Error in pip.exe install pyautogui | 0.066568 | 0 | 0 | 10,149 |
39,544,944 | 2016-09-17T09:03:00.000 | 1 | 0 | 1 | 0 | python,pip,pyautogui | 42,882,370 | 6 | false | 0 | 1 | I'm happy to report that this installation error has been fixed as of version 0.9.34. All you have to do is install or update PyAutoGUI from PyPI. | 3 | 3 | 0 | I have been installing PyautoGui on my WIN10 PC. But I am getting the following error, i have been getting a lot of errors jut to get this far.
i have been reinstalling python so its destination folder is in C:\Python instead of C:\Users\Home\AppData\Local\Programs\Python\Python35-32 mabye thats why ? How do i fix t... | Installing PyAutoGUI Error in pip.exe install pyautogui | 0.033321 | 0 | 0 | 10,149 |
39,544,944 | 2016-09-17T09:03:00.000 | 2 | 0 | 1 | 0 | python,pip,pyautogui | 40,112,934 | 6 | false | 0 | 1 | Instead of letting PyautoGUI get all the packages for you.
Install all of them individually. Then, run the pip install --upgrade _packageName_
Then run pip install pyautogui.
Hope this helps. | 3 | 3 | 0 | I have been installing PyautoGui on my WIN10 PC. But I am getting the following error, i have been getting a lot of errors jut to get this far.
i have been reinstalling python so its destination folder is in C:\Python instead of C:\Users\Home\AppData\Local\Programs\Python\Python35-32 mabye thats why ? How do i fix t... | Installing PyAutoGUI Error in pip.exe install pyautogui | 0.066568 | 0 | 0 | 10,149 |
39,545,314 | 2016-09-17T09:44:00.000 | 0 | 0 | 1 | 0 | python,installation | 39,545,380 | 1 | false | 0 | 0 | If you installed IDLE correctly, it will appear in your menu with a folder for IDLE. Look there. If not, attempt to reinstall IDLE. It will not affect anything. | 1 | 0 | 0 | I am a complete beginner to programming. I downloaded Python 3.4.3. 64 bit for my Windows 10 OS. The download specified that it included IDLE. I opened Python with no issue, but IDLE was not in that folder. I searched for it on my C drive and it didn't match any file names.
Did it save somewhere else? | Why isn't IDLE in the folder with the Python program? | 0 | 0 | 0 | 103 |
39,546,228 | 2016-09-17T11:20:00.000 | 3 | 0 | 0 | 0 | python,django,heroku,amazon-s3,large-files | 45,600,079 | 2 | false | 1 | 0 | The points in the other answer are valid. The short answer to the question of "Is there anyway that i can possibly upload large files through Django backend without using JavaScript" is "not without switching away from Heroku".
Keep in mind that any data transmitted to your dynos goes through Heroku's routing mesh, whi... | 1 | 15 | 0 | I have a django app that allows users to upload videos. Its hosted on Heroku and the uploaded files stored on an S3 Bucket.
I am using JavaScript to directly upload the files to S3 after obtaining a presigned request from Django app. This is due to Heroku 30s request timeout.
Is there anyway that i can possibly uploa... | Uploading Large files to AWS S3 Bucket with Django on Heroku without 30s request timeout | 0.291313 | 0 | 0 | 1,926 |
39,546,734 | 2016-09-17T12:18:00.000 | 1 | 0 | 0 | 0 | python,django,django-models,django-migrations | 39,547,167 | 1 | true | 1 | 0 | As long as your migration isn't applied to the database you can manually update your migration file located in myapp/migrations/*.py. Find the string '10.07.2016' and update it to a supported format.
A less attractive solution would be to delete the old migration file (as long as it isn't apllied to the database) and c... | 1 | 1 | 0 | I worked with django 1.9 and added a new field (creation_date) to myapp/models.py.
After that I run "python manage.py makemigrations". I got:
Please select a fix:
Provide a one-off default now (will be set on all existing rows)
Quit, and let me add a default in models.py."
I choose 1-st option and added value in w... | Django models, adding new value, migrations | 1.2 | 0 | 0 | 861 |
39,547,386 | 2016-09-17T13:29:00.000 | 0 | 0 | 0 | 0 | python,image,sockets,stream,udp | 39,556,790 | 1 | false | 0 | 0 | My psychic powers tell me that are hitting the size limit for a UDP packet, which is just under 64KB. You will likely need to split your image bytes up into multiple packets when sending and have some logic to put them back together on the receiving end. You will likely need to roll out your own header format.
Not s... | 1 | 0 | 0 | I am trying to make a video-streaming application, in which i'll be able to both stream my webcam and my desktop. Up until now I've done so with TCP communication in order to make sure everything works, and it does, but very slowly.
I know that usually in live streams like these you would use UDP, but I can't get it to... | Sending an image through UDP communication | 0 | 0 | 1 | 992 |
39,555,060 | 2016-09-18T07:09:00.000 | 0 | 0 | 0 | 0 | python,multithreading,thread-safety,locking,tensorflow | 39,577,466 | 1 | false | 0 | 0 | Do your inference calls need to be on an up-to-date version of the graph? If you don't mind some delay, you could make a copy of the graph by calling sess.graph.as_graph_def on the training thread, and then create a new session on the inference thread using that graph_def periodically. | 1 | 0 | 1 | I have several threads that either update the weights of my network or run inference on it. I use the use_locking parameter for the optimizer to prevent concurrent updates of the weights.
Inference should always use a recent, and importantly, consistent, version of the weights. In other words, I want to prevent using a... | Can I safely do inference from another thread while training the network? | 0 | 0 | 0 | 67 |
39,555,235 | 2016-09-18T07:38:00.000 | 2 | 0 | 0 | 0 | python,cuda,cython,numba,pycuda | 39,557,406 | 1 | true | 0 | 1 | As far as I am aware, this isn't possible in either language. Neither exposes the necessary toolchain controls for separate compilation or APIs to do runtime linking of device code. | 1 | 2 | 1 | I'm working on a project that involves creating CUDA kernels in Python. Numba works quite well (what these guys have accomplished is quite incredible), and so does PyCUDA.
My problem is that I want to call a C device function from my Python generated kernel. I couldn't find a way to accomplish this. Numba can call CFFI... | Calling a C++ CUDA device function from a Python kernel | 1.2 | 0 | 0 | 604 |
39,558,984 | 2016-09-18T14:52:00.000 | 5 | 0 | 0 | 0 | python,flask,wtforms,flask-wtforms | 39,559,508 | 1 | false | 1 | 0 | For the whole form, form.errors contains a map of fields to lists of errors. If it is not empty, then the form did not validate. For an individual field, field.errors contains a list of errors for that field. The list is the same as the one in form.errors.
form.validate() performs validation and populates errors. W... | 1 | 2 | 0 | I called form.validate_on_submit(), but it returned False. How can I find out why the form didn't validate? | Determine why WTForms form didn't validate | 0.761594 | 0 | 0 | 1,729 |
39,559,677 | 2016-09-18T16:00:00.000 | 27 | 0 | 1 | 0 | python,pyinstaller | 39,559,759 | 2 | true | 0 | 0 | Pyinstaller optionally encrypts the python sources with a very strong method.
Of course without the key it is nearly impossible to extract the files.
BUT the sources still need to be accessed at run time or the program couldn't work (or someone would have to provide the password each time, like protected excel files fo... | 1 | 14 | 0 | I'm trying to understand why PyInstaller documentation states that the --key argument to encrypt Python source code can be easily extracted:
Additionally, Python bytecode can be obfuscated with AES256 by specifying an encryption key on PyInstaller’s command line. Please note that it is still very easy to extract the ke... | PyInstaller Encryption --key | 1.2 | 0 | 0 | 15,700 |
39,562,939 | 2016-09-18T21:40:00.000 | 0 | 0 | 0 | 0 | python | 39,563,394 | 1 | false | 0 | 0 | First of all, you should not save the result of cross validation. Cross validation is not a training method, it is an evaluation scheme. You should build a single model on your whole dataset and use it to predict.
If, for some reason, you can no longer train your model, you can still use this 5 predictions by averaging... | 1 | 0 | 1 | I used joblib.dump in python to save models from 5 fold cross validation modelling using random forest. As a result I have 5 models for each dataset saved as: MDL_1.pkl, MDL_2.pkl, MDL_3.pkl, MDL_4.pkl, MDL_5.pkl. Now I want to use these models for prediction of external dataset using predict_proba when the final predi... | predict external dataset with models from random forest | 0 | 0 | 0 | 43 |
39,563,319 | 2016-09-18T22:42:00.000 | 1 | 0 | 1 | 0 | python | 39,566,295 | 1 | false | 0 | 0 | Let's put it this way:
If you are making a big jig saw puzzle, you start dividing the pieces into sections; clouds with clouds, water with water, grass with grass etc. Subsequently, you don't mix the pieces, but put each of the sections into a different corner on the table.
Likewise, if you have bigger coding projects... | 1 | 2 | 0 | I have this script I'm working on which is some 2,000 lines. At the top I have a list of settings to be used in the script, then all the functions, then the script itself.
I found myself going back and forth from the actual script to the functions (and the settings) so I thought it might be a good idea to place them i... | Is it worth placing functions, variables, settings etc in different files? | 0.197375 | 0 | 0 | 64 |
39,566,809 | 2016-09-19T06:39:00.000 | 5 | 0 | 0 | 0 | python,dask | 57,812,535 | 2 | false | 0 | 0 | you can convert your dask dataframe to a pandas dataframe with the compute function and then use the to_csv. something like this:
df_dask.compute().to_csv('csv_path_file.csv') | 1 | 34 | 1 | New to dask,I have a 1GB CSV file when I read it in dask dataframe it creates around 50 partitions after my changes in the file when I write, it creates as many files as partitions.
Is there a way to write all partitions to single CSV file and is there a way access partitions?
Thank you. | Writing Dask partitions into single file | 0.462117 | 0 | 0 | 14,834 |
39,570,317 | 2016-09-19T09:58:00.000 | 4 | 0 | 1 | 0 | python,object,if-statement,reference,conditional | 39,570,581 | 1 | true | 0 | 0 | When they say "everything is an object or a reference" they are referring specifically to data. So this naturally does not apply to statements. Of course, all expressions will result in data. For example a == b is <class 'bool'> because it is an expression.
There are some languages where if is an expression but python ... | 1 | 2 | 0 | As far as I understand, everything in python is an object or a reference.
For example: in x = 1, x is a reference to the integer object 1. If I write print type(x), then Python will tell me the object that x is referencing is an integer.
So what about statements such as if?
if I try print type(if), unsurprisingly, I ... | in Python, are statements objects? | 1.2 | 0 | 0 | 172 |
39,571,659 | 2016-09-19T11:05:00.000 | 0 | 0 | 0 | 0 | javascript,python,html | 69,865,240 | 2 | false | 1 | 0 | If you are not gonna use any sensitive data like password you can use localStorage or Url Hash . | 1 | 0 | 0 | I want to post data from html to another html
I know how to post data html->python and python-> html
I have dictionary in the html (I get it from python - return render_to_response('page.html', locals())
how can I use with the dictionary in the second html file? | Post data from html to another html | 0 | 0 | 1 | 95 |
39,573,614 | 2016-09-19T12:48:00.000 | 0 | 1 | 1 | 1 | php,python,bash,variables,share | 39,580,897 | 1 | false | 0 | 0 | OK, I think the best approach for me here would be to limit variable storages from 3 to at least 2 and make python script deal with bash tasks over os.system. To use 2 storages is somehow manageable | 1 | 1 | 0 | I have project that uses same initial variables on same server by different programming languages. they are PHP, python and bash. i need all languages to access those variable and I cannot exclude any language.
for now I keep 3 places to store variables:
for php I have Mysql storage, for python and bash 2 separate fil... | share variables by PHP, python, bash | 0 | 0 | 0 | 46 |
39,574,567 | 2016-09-19T13:35:00.000 | 0 | 0 | 1 | 0 | python-2.7,scipy,scikit-learn,k-means | 39,581,743 | 1 | false | 0 | 0 | So, the situation as of today is: there is no distributed Python implementation of KMeans++ other than in scikit-learn. That situation may change if a good implementation finds its way into scipy. | 1 | 0 | 1 | I have nothing against scikit-learn, but I had to install anaconda to get it, which is a bit obtrusive. | Is there any K-means++ implementation outside of scikit-learn for Python 2.7? | 0 | 0 | 0 | 72 |
39,576,478 | 2016-09-19T15:08:00.000 | 4 | 1 | 1 | 0 | python | 39,576,570 | 3 | true | 0 | 1 | Header files in C/C++ are a "copy paste" mechanism. The included header file is literally written into the file while preprocessing (copy pasting the source code together).
After that is done, the compiler transaltes the source code. The linker then connects the function calls.
That is somewhat outdated and error pron... | 3 | 2 | 0 | I am a complete newbie to python transiting from C++.
While learning C++, I was explained that header files tells about the working of the function or define them to the compiler so that it understands what means what i.e., iostream contains the definition of cin (nd much more) so that the compiler knows that it is a ... | Why Python and java does not need any header file whereas C and C++ needs them | 1.2 | 0 | 0 | 2,209 |
39,576,478 | 2016-09-19T15:08:00.000 | 1 | 1 | 1 | 0 | python | 39,576,943 | 3 | false | 0 | 1 | In Java and Python we use a similar keyword called import to add a package and use the methods in it. But in advanced languages like Java and Python few packages are imported by default.
e.g. in Java java.lang.* is imported by default. | 3 | 2 | 0 | I am a complete newbie to python transiting from C++.
While learning C++, I was explained that header files tells about the working of the function or define them to the compiler so that it understands what means what i.e., iostream contains the definition of cin (nd much more) so that the compiler knows that it is a ... | Why Python and java does not need any header file whereas C and C++ needs them | 0.066568 | 0 | 0 | 2,209 |
39,576,478 | 2016-09-19T15:08:00.000 | -1 | 1 | 1 | 0 | python | 39,576,524 | 3 | false | 0 | 1 | Java and Python have import which is similar to include.
Some inbuilt functions are built in and hence does not require any imports. | 3 | 2 | 0 | I am a complete newbie to python transiting from C++.
While learning C++, I was explained that header files tells about the working of the function or define them to the compiler so that it understands what means what i.e., iostream contains the definition of cin (nd much more) so that the compiler knows that it is a ... | Why Python and java does not need any header file whereas C and C++ needs them | -0.066568 | 0 | 0 | 2,209 |
39,577,548 | 2016-09-19T16:09:00.000 | 0 | 0 | 0 | 0 | python,django,django-models,django-rest-framework | 39,584,832 | 1 | false | 1 | 0 | django-locking is the way to go. | 1 | 0 | 0 | I am trying to build a project(like e-commerce) using Django and integrate it with android. (I am not building website, I am trying mobile only, so I am using django-rest-framework to create api)
So my question is how to handle a case where two or more users can book an item at the same time when there is only a single... | How to handle concurrent modifications in django? | 0 | 0 | 0 | 76 |
39,580,809 | 2016-09-19T19:38:00.000 | 1 | 0 | 1 | 0 | python,mongodb,scrapy,mongoexport | 39,580,966 | 1 | true | 0 | 0 | Replace --out scrape-export.csv in your command with --out scrape-export-$(date +"%Y-%m-%d").csv
It'll create filenames in the format scrape-export-2016-09-05 | 1 | 0 | 0 | I have a MongoDB that houses data from a web scrape that runs weekly via Scrapy. I'm going to setup a cron job to run the scrape job weekly. What I would like to do is also export a CSV out of MongoDB using mongoexport however I would like to inject the current date into the file name. I've tried a few different method... | Export MongoDB to CSV Using File Name Variable | 1.2 | 1 | 0 | 244 |
39,582,974 | 2016-09-19T22:21:00.000 | 1 | 0 | 0 | 0 | python,tensorflow | 39,583,123 | 1 | true | 0 | 0 | This output means that TensorFlow's shape inference has only been able to infer a partial shape for the mask tensor. It has been able to infer (i) that mask is a 4-D tensor, and (ii) its last dimension is 1; but it does not know statically the shape of the first three dimensions.
If you want to get the actual shape of ... | 1 | 0 | 1 | During debuging the Tensorflow code, I would like to output the shape of a tensor, say, print("mask's shape is: ",mask.get_shape()) However, the corresponding output is mask's shape is (?,?,?,1) How to explain this kind of output, is there anyway to know the exactly value of the first three dimensions of this tensor? | regarding the tensor shape is (?,?,?,1) | 1.2 | 0 | 0 | 569 |
39,585,238 | 2016-09-20T03:25:00.000 | 0 | 0 | 1 | 0 | python,macos | 39,585,904 | 1 | false | 0 | 0 | for mysql-connector installation problem, i found the solution:
Try go to python3 bin directory and find pip method. this pip method can be override by the system python2 pip command, so if you want to install MySQL-python module to python3.x site-packages, you should cd to such bin directory and ./pip install MySQL-py... | 1 | 0 | 0 | I installed python3.5 on my mac, its installation was automatically. but these days i found there was already python2 on my mac and every module i installed through pip went to /Library/Python/2.7/site-packages.
I find python3 installed location is /Library/Frameworks/Python.framework/Versions/3.5
Now download a mysql-... | mac two version python conflict | 0 | 1 | 0 | 851 |
39,596,724 | 2016-09-20T14:25:00.000 | 1 | 0 | 1 | 0 | python-2.7,class,inheritance | 39,596,873 | 1 | false | 0 | 0 | In python everything is an object, an object is an object. You can also create Meta-classes to change some behavior of your objects/object to implement something.
In you case KNNLearner(object) the (object) permits you to pass the class that you want to KNNLearner to inherit. | 1 | 0 | 0 | I am learning to make classes using template codes and one of them is coded with what looks like inheritance syntax:
class KNNLearner(object):
What is the purpose of (object) here? | Does Python have a pre-existing class called 'object'? | 0.197375 | 0 | 0 | 39 |
39,598,572 | 2016-09-20T15:49:00.000 | 1 | 0 | 1 | 0 | python,multithreading,queue,python-multithreading,pyzmq | 70,651,650 | 1 | false | 0 | 0 | Q : "Is there a better approach?"
A :
Well, my ultimate performance-candidate would be this :
the sampler will operate two or more, separate, statically preallocated "circular"-buffers, one for storing in phase one, the other thus free-to get sent and vice-verse
once the sampler's filling reaches the end of the first... | 1 | 7 | 0 | I acquire samples (integers) at a very high rate (several kilo samples per seconds) in a thread and put() them in a threading.Queue. The main thread get()s the samples one by one into a list of length 4096, then msgpacks them and finally sends them via ZeroMQ to a client. The client shows the chunks on the screen (prin... | Python threading queue is very slow | 0.197375 | 0 | 0 | 3,388 |
39,600,764 | 2016-09-20T17:57:00.000 | 1 | 1 | 0 | 0 | python,optimization,tail-recursion | 39,600,829 | 1 | true | 0 | 0 | It's not possible. inspect doesn't let you rewrite the stack that way, and in any case, it only gives Python stack frames. Even if you could change how the Python stack frames hook up to each other, the C call stack would be unaffected. | 1 | 0 | 0 | I've recently discovered the inspect and thought if it's possible to manually remove "outer" frames of the current frame and thus implementing tail-recursion optimization.
Is it possible? How? | Hacking tail-optimization | 1.2 | 0 | 0 | 36 |
39,602,586 | 2016-09-20T19:45:00.000 | 2 | 0 | 0 | 0 | javascript,python,email,security | 39,603,344 | 1 | true | 1 | 0 | The first time someone accesses the URL, you could send them a random cookie, and save that cookie with the document. On future accesses, check if the cookie matches the saved cookie. If they share the URL with someone, that person won't have the cookie.
Caveats:
If they share the URL with someone else, and the other ... | 1 | 0 | 0 | Not sure if this question should come to SO, but here it goes.
I have the following scenario:
A Flask app with typical users that can login using username / password. Users can share some resources among them, but now we want to let them share those with anyone, not users of the app basically.
Because the resources con... | Is there a way to share a link with only a spefic mail recipient? | 1.2 | 0 | 0 | 29 |
39,602,962 | 2016-09-20T20:09:00.000 | 1 | 0 | 1 | 0 | python,windows,memory,memory-management | 39,603,049 | 2 | false | 0 | 0 | Have you heard of paging? Windows dumps some ram (that hasn't been used in a while) to your hard drive to keep your computer from running out or ram and ultimately crashing.
Only Windows deals with memory management. Although, if you use Windows 10, it will also compress your memory, somewhat like a zip file. | 1 | 2 | 0 | I have written a program that expands a database of prime numbers. This program is written in python and runs on windows 10 (x64) with 8GB RAM.
The program stores all primes it has found in a list of integers for further calculations and uses approximately 6-7GB of RAM while running. During some runs however, this figu... | Using more memory than available | 0.099668 | 0 | 0 | 1,637 |
39,604,918 | 2016-09-20T22:51:00.000 | 6 | 0 | 0 | 0 | python,numpy,machine-learning,neural-network | 39,605,142 | 2 | false | 0 | 0 | (n,) is a tuple of length 1, whose only element is n. (The syntax isn't (n) because that's just n instead of making a tuple.)
If an array has shape (n,), that means it's a 1-dimensional array with a length of n along its only dimension. It's not a row vector or a column vector; it doesn't have rows or columns. It's jus... | 1 | 9 | 1 | I've tried searching StackOverflow, googling, and even using symbolhound to do character searches, but was unable to find an answer. Specifically, I'm confused about Ch. 1 of Nielsen's Neural Networks and Deep Learning, where he says "It is assumed that the input a is an (n, 1) Numpy ndarray, not a (n,) vector."
At fir... | What does (n,) mean in the context of numpy and vectors? | 1 | 0 | 0 | 2,722 |
39,606,308 | 2016-09-21T01:52:00.000 | 0 | 0 | 0 | 0 | javascript,python,pycharm | 39,629,226 | 1 | false | 1 | 0 | Open the Chrome Developer tool setting, and disable the cache.
credit to @All is Vanity | 1 | 1 | 0 | I am developing a simple web application integrated with MySQL database. I am using PyCharm to write Python, HTML, JavaScript, CSS. After I make change to my JavaScript and I run my application on Chrome, the Chrome console suggests that the change did not apply. I already invalid PyCharm caches and restart Pycharm, it... | PyCharm not respond to my change in JavaScript file | 0 | 0 | 0 | 433 |
39,607,359 | 2016-09-21T04:03:00.000 | 0 | 0 | 0 | 0 | python,django | 39,607,668 | 2 | false | 1 | 0 | OK, so I crossed my fingers, backed my local 0021-0028 migration files, and then deleted them. It worked. I think they key is that the migration files were not yet in the database yet, but not 100% sure. +1 if anyone can answer further for clarification. | 1 | 2 | 0 | So, I committed and pushed all my code, and then deployed my web application successfully. Then, I added a new model to my 'home' app, which (for a reason I now understand, but doesn't matter here), created an IntegrityError (django.db.utils.IntegrityError: insert or update on table "foo" violates foreign key constrain... | Stuck in a django migration IntegrityError loop: can I delete those migrations that aren't yet in the db? | 0 | 0 | 0 | 801 |
39,607,721 | 2016-09-21T04:42:00.000 | 0 | 0 | 0 | 0 | python,algorithm,chess | 39,607,825 | 4 | false | 0 | 0 | Try something. Draw boards of the following sizes: 1x1, 2x2, 3x3, 4x4, and a few odd ones like 2x4 and 3x4. Starting with the smallest board and working to the largest, start at the bottom left corner and write a 0, then find all moves from zero and write a 1, find all moves from 1 and write a 2, etc. Do this until the... | 2 | 0 | 1 | Here is the problem:
Given the input n = 4 x = 5, we must imagine a chessboard that is 4 squares across (x-axis) and 5 squares tall (y-axis). (This input changes, all the up to n = 200 x = 200)
Then, we are asked to determine the minimum shortest path from the bottom left square on the board to the top right square on ... | Number of shortest paths | 0 | 0 | 0 | 3,995 |
39,607,721 | 2016-09-21T04:42:00.000 | 0 | 0 | 0 | 0 | python,algorithm,chess | 39,608,395 | 4 | false | 0 | 0 | My approach to this question would be backtracking as the number of squares in the x-axis and y-axis are different.
Note: Backtracking algorithms can be slow for certain cases and fast for the other
Create a 2-d Array for the chess-board. You know the staring index and the final index. To reach to the final index u n... | 2 | 0 | 1 | Here is the problem:
Given the input n = 4 x = 5, we must imagine a chessboard that is 4 squares across (x-axis) and 5 squares tall (y-axis). (This input changes, all the up to n = 200 x = 200)
Then, we are asked to determine the minimum shortest path from the bottom left square on the board to the top right square on ... | Number of shortest paths | 0 | 0 | 0 | 3,995 |
39,608,377 | 2016-09-21T05:44:00.000 | 0 | 0 | 0 | 0 | python,ajax,django,rest,django-rest-framework | 39,608,464 | 1 | true | 1 | 0 | I usually follow DDD approach. So all my requests end up being just a CRUD operation for an entity. I always prefer REST APIs, thus I would say if you have DDD approach already in place go with django-rest-framework.
Otherwise, it really does not matter, depends on your need. | 1 | 0 | 0 | I have a bunch of ajax requests on my website (ex. upvote sends request to server)
Should I integrate this functionality server side just with another view function
Or is it recommended that I shove all the necessary views into a Django rest framework? | Should I handle ajax requests in vanilla Django or rest Django? | 1.2 | 0 | 0 | 86 |
39,611,124 | 2016-09-21T08:21:00.000 | 0 | 1 | 0 | 0 | python,producer-consumer,kafka-python | 39,652,029 | 1 | true | 0 | 0 | I found the answer already, just make sure the partition number is not equal to one while creating new topic. | 1 | 0 | 0 | I've try before sending message from single producer to 2 different consumer with DIFFERENT consumer group id. The result is both consumer able to read the complete message (both consumers getting the same message). But I would like to ask is it possible for these 2 consumers read different messages while setting them ... | Single producer to multi consumers (Same consumer group) | 1.2 | 0 | 1 | 112 |
39,611,995 | 2016-09-21T09:02:00.000 | 0 | 0 | 0 | 1 | python,cassandra,cqlsh,cqlengine | 39,628,303 | 1 | false | 0 | 0 | Blob will be converted to a byte array in Python if you read it directly. That looks like a byte array containing the Hex value of the blob.
One way is to explicitly do the conversion in your query.
select id, name, blobasint(value) from table limit 3
There should be a conversion method with the Python driver as well. | 1 | 0 | 0 | I have a column-family/table in cassandra-3.0.6 which has a column named "value" which is defined as a blob data type.
CQLSH query select * from table limit 2; returns me:
id | name | value
id_001 | john | 0x010000000000000000
id_002 | terry | 0x044097a80000000000
If I read this value using cqlengine(Datastax Pyt... | Not able to convert cassandra blob/bytes string to integer | 0 | 1 | 0 | 1,608 |
39,613,555 | 2016-09-21T10:09:00.000 | 0 | 0 | 1 | 0 | python,n-gram,language-model | 39,613,813 | 1 | false | 0 | 0 | Sounds like you need to store the intermediate frequency counts on disk rather than in memory. Luckily most databases can do this, and python can talk to most databases. | 1 | 1 | 1 | I have 3 milion abstracts and I would like to extract 4-grams from them. I want to build a language model so I need to find the frequencies of these 4-grams.
My problem is that I can't extract all these 4-grams in memory. How can I implement a system that it can estimate all frequencies for these 4-grams? | N-grams - not in memory | 0 | 0 | 0 | 83 |
39,615,861 | 2016-09-21T11:54:00.000 | 0 | 0 | 0 | 1 | python,google-app-engine,memcached | 39,623,880 | 2 | false | 1 | 0 | Memcache is shared across users. It is not a cookie, but exists in RAM on the server for all pertinent requests to access. | 1 | 1 | 0 | Using Google App Engine Memcache... Can more than one user access the same key-value pair?
or in other words.. Is there a Memcache created per user or is it shared across multiple users? | Google App Engine Memcache Python | 0 | 0 | 0 | 71 |
39,616,849 | 2016-09-21T12:41:00.000 | 1 | 0 | 0 | 0 | python,google-bigquery | 39,632,118 | 2 | false | 0 | 0 | There's no option to do this in one step. I'd recommend running the query, inspecting the results, and then performing a table copy with WRITE_TRUNCATE to commit the results to the final location if the intermediate output contains at least one row. | 1 | 0 | 0 | In BigQuery it's possible to write to a new table the results of a query. I'd like the table to be created only whenever the query returns at least one row. Basically I don't want to end up creating empty table. I can't find an option to do that. (I am using the Python library, but I suppose the same applies to the raw... | Write from a query to table in BigQuery only if query is not empty | 0.099668 | 1 | 0 | 788 |
39,617,506 | 2016-09-21T13:09:00.000 | 1 | 0 | 1 | 0 | python,caching,blender | 40,272,613 | 1 | true | 0 | 0 | you can avoid that pycache folder by setting the sys.dont_write_bytecode
varaible to True.
Keep in mind that there won´t be any caches and caches at all for all your python files | 1 | 0 | 0 | I'm currently coding an add-on for Blender (on OSX, but this shouldn't be relevant).
All my python files are in the default add-on folder. This folder is loaded at Blender's startup and I can see, enable and disable it in User Preferences in Blender.
Now, when I edit my add-on, I simply save the file and hit f8 in Blen... | Blender: disable addon cache | 1.2 | 0 | 0 | 724 |
39,618,985 | 2016-09-21T14:08:00.000 | 0 | 0 | 0 | 0 | python,scikit-learn,joblib | 39,621,200 | 1 | false | 0 | 0 | After reverting to scikit-learn 0.16.x, I just needed to install OpenBlas for Ubuntu. It appears that the problem was more a feature of the operating system rather than Python. | 1 | 0 | 1 | I have a Hidden Markov Model that has been pickled with joblib using the sklearn.hmm module. Apparently, in version 0.17.x this module has been deprecated and moved to hmmlearn. I am unable to load the model and I get the following error:
ImportError: No module named 'sklearn.hmm'
I have tried to revert back to versi... | Deprecated Scikit-learn module prevents joblib from loading it | 0 | 0 | 0 | 576 |
39,620,185 | 2016-09-21T15:03:00.000 | 1 | 0 | 0 | 0 | python,python-2.7,parallel-processing,scikit-learn,logistic-regression | 39,620,443 | 2 | false | 0 | 0 | the parallel process backend also depends on the solver method. if you want to utilize multi core, the multiprocessing backend is needed.
but solver like 'sag' can only use threading backend.
and also mostly, it can be blocked due to a lot of pre-processing. | 1 | 2 | 1 | I'm trying to train a huge dataset with sklearn's logistic regression.
I've set the parameter n_jobs=-1 (also have tried n_jobs = 5, 10, ...), but when I open htop, I can see that it still uses only one core.
Does it mean that logistic regression just ignores the n_jobs parameter?
How can I fix this? I really need this... | sklearn Logistic Regression with n_jobs=-1 doesn't actually parallelize | 0.099668 | 0 | 0 | 2,100 |
39,621,594 | 2016-09-21T16:11:00.000 | 0 | 0 | 0 | 0 | python,django,email,smtp,webfaction | 39,628,967 | 1 | true | 1 | 0 | You set EMAIL_HOST and EMAIL_PORT just for sending emails to your user.
Mail is sent using the SMTP host and port specified in the EMAIL_HOST and EMAIL_PORT settings. The EMAIL_HOST_USER and EMAIL_HOST_PASSWORD settings, if set, are used to authenticate to the SMTP server, and the EMAIL_USE_TLS and EMAIL_USE_SSL setti... | 1 | 1 | 0 | I'm implementing a contact form for one of my sites. One thing I'm not sure I understand completely is why you need EMAIL_HOST_USER and EMAIL_HOST_PASSWORD.
The user would only need to provide his/her email address, so what is the EMAIL_HOST_USER referring to then and why would I need to specify an email and password?
... | django email username and password | 1.2 | 0 | 0 | 268 |
39,627,787 | 2016-09-21T23:01:00.000 | 2 | 0 | 1 | 0 | python,numpy | 39,640,835 | 2 | false | 0 | 0 | Actually in order to make all intermediate directories if needed the os.makedirs(path, exist_ok=True) . If not needed the command will not throw an error. | 2 | 2 | 1 | I'm trying loop over many arrays and create files stored in different folders.
Is there a way to have np.savetxt creating the folders I need as well?
Thanks | Create Folder with Numpy Savetxt | 0.197375 | 0 | 0 | 6,937 |
39,627,787 | 2016-09-21T23:01:00.000 | 3 | 0 | 1 | 0 | python,numpy | 39,628,096 | 2 | true | 0 | 0 | savetxt just does a open(filename, 'w'). filename can include a directory as part of the path name, but you'll have to first create the directory with something like os.mkdir. In other words, use the standard Python directory and file functions. | 2 | 2 | 1 | I'm trying loop over many arrays and create files stored in different folders.
Is there a way to have np.savetxt creating the folders I need as well?
Thanks | Create Folder with Numpy Savetxt | 1.2 | 0 | 0 | 6,937 |
39,628,128 | 2016-09-21T23:44:00.000 | 0 | 0 | 0 | 0 | python,amazon-web-services,amazon-ec2,boto | 39,649,819 | 1 | false | 1 | 0 | At the time of writing, there is no way to do this in a single operation. | 1 | 0 | 0 | Is that a way to create an EC2 instance with tags(I mean, adding tag as parameter when creating instance)
I can't find this function in boto APIs. According to the document, we can only add tags after creating.
However, when creating on the browser, we can configure the tags when creating. So can we do the same thing... | Is there a way to set a tag on an EC2 instance while creating it? | 0 | 0 | 1 | 66 |
39,628,191 | 2016-09-21T23:54:00.000 | 0 | 0 | 0 | 0 | python,selenium,selenium-webdriver | 39,629,897 | 2 | false | 0 | 0 | In case of implicit wait driver waits till elements appears in DOM but at the same time it does not guarantee that elements are usable. Elements might not be enabled to be used ( like button click ) or elements might not have shape defined at that time.
We are not interested with all the elements on the page as far as... | 1 | 2 | 0 | Other people have asked this question and there are some answers but they do not clarify one moment. Implicit wait will wait for a specified amount of time if element is not found right away and then will run an error after waiting for the specified amount of time. Does it mean that implicit wait checks for the element... | Selenium Webdriver Python - implicit wait is not clear to me | 0 | 0 | 1 | 1,773 |
39,631,465 | 2016-09-22T06:08:00.000 | 1 | 0 | 1 | 0 | javascript,python | 39,632,417 | 3 | false | 1 | 0 | Well, an interpreter is not really a job for a beginner, also you'd better send the code to server side with AJAX, and then display the result in the page. | 1 | 1 | 0 | I want to make a python interpreter by using Javascript.
Then you can input the python code and the Javascript in the webpage can interpret the code into javascript code and then run the code and return the result.
Because I have not much experience in this area, so I want some advice from the senior.
Thanks very much... | making a python interpreter using javascript | 0.066568 | 0 | 0 | 4,748 |
39,640,037 | 2016-09-22T13:10:00.000 | 1 | 0 | 0 | 0 | python,django,django-models | 39,640,286 | 1 | true | 1 | 0 | ForeignKey is a many-to-one relationship. Requires a positional argument: the class to which the model is related.
It must be Relation (class) or Null (if null allowed). You cannot set 0 (integer) to ForeignKey columnn. | 1 | 1 | 0 | I have to update a record which have foreign key constraint.
i have to assign 0 to the column which is defined as foreign key
while updating django don't let me to update record. | How to temporarily disable foreign key constraint in django | 1.2 | 0 | 0 | 1,839 |
39,642,961 | 2016-09-22T15:21:00.000 | 2 | 0 | 1 | 1 | python,django,postgresql,psycopg2 | 51,605,060 | 4 | false | 0 | 0 | Instead of
pip install psycopg2
try
pip install psycopg2-binary | 1 | 2 | 0 | I have postgresql installed (with postgresql app). When I try "pip install psycopg2", i get "unable to execute gcc-4.2: No such file or directory. How to fix? | How to install psycopg2 for django on mac | 0.099668 | 0 | 0 | 1,746 |
39,643,256 | 2016-09-22T15:34:00.000 | 0 | 0 | 0 | 0 | python,machine-learning,computer-vision,tensorflow | 39,664,586 | 2 | false | 0 | 0 | I'm guessing that you're wanting to automatically store the hyper-parameters as part of the file name in order to organize your experiments better? Unfortunately there isn't a good way to do this with TensorFlow, but you can look at some of the high-level frameworks built on top of it to see if they offer something sim... | 1 | 0 | 1 | Is it possible to group tensorflow FLAGS by type?
E.g.
Some flags are system related (e.g. # of threads) while others are model hyperparams.
Then, is it possible to use the model hyperparams FLAGS, in order to generate a string? (the string will be used to identify the model filename)
Thanks | Is it possible to group tensorflow FLAGS by type and generate a string from them? | 0 | 0 | 0 | 79 |
39,646,077 | 2016-09-22T18:11:00.000 | 0 | 0 | 1 | 0 | python,anaconda | 39,646,217 | 2 | false | 0 | 0 | You can use any text editor to open a .py file, e.g. TextMate, TextWrangler, TextEdit, PyCharm, AquaMacs, etc. | 2 | 1 | 0 | I have installed Anaconda, but I do not know how to open a .py file..
If it is possible, please explain plainly, I browsed several threads, but I understood none of them..
Thanks a lot for your helps..
Best, | How to read a .py file after I install Anaconda? | 0 | 0 | 0 | 8,545 |
39,646,077 | 2016-09-22T18:11:00.000 | 3 | 0 | 1 | 0 | python,anaconda | 39,646,328 | 2 | true | 0 | 0 | In the menu structure of your operating system, you should see a folder for Anaconda. In that folder is an icon for Spyder. Click that icon.
After a while (Spyder loads slowly) you will see the Spyder integrated environment. You can choose File then Open from the menu, or just click the Open icon that looks like an ope... | 2 | 1 | 0 | I have installed Anaconda, but I do not know how to open a .py file..
If it is possible, please explain plainly, I browsed several threads, but I understood none of them..
Thanks a lot for your helps..
Best, | How to read a .py file after I install Anaconda? | 1.2 | 0 | 0 | 8,545 |
39,648,189 | 2016-09-22T20:19:00.000 | 1 | 0 | 1 | 0 | python,pip,virtualenv | 46,492,773 | 2 | false | 0 | 0 | I can be late, but you can do it either via:
config (~/.pip/pip.conf):
[global]
require-virtualenv = true
env variable PIP_REQUIRE_VIRTUALENV | 1 | 4 | 0 | Sometimes by mistake I install some packages globally with plain pip install package and contaminate my system instead of creating a proper virtualenv and keeping things tidy.
How can I easily disable global installs with pip at all? Or at least show big fat warning when using it this way to make sure that I know what ... | Disable global installs using pip - allow only virtualenvs | 0.099668 | 0 | 0 | 534 |
39,648,803 | 2016-09-22T21:01:00.000 | 0 | 1 | 0 | 0 | php,python,linux,apache,beagleboneblack | 39,649,062 | 1 | false | 0 | 0 | I am unfamiliar with php, but could you have php write to a temporary text file, and then when that python script gets called, it simply reads in that text file to store the boolean value? | 1 | 1 | 0 | I'm making a simple home automation system with my Beagle Bone, raspberry pi and a hand full of components. I have a simple interface on a webpage and i'm currently trying to remotely toggle a relay. Right now I have a button on the webpage that uses php to call a python script that either turns the relay on or off dep... | Best way to share a variable with multiple instances of the same python script | 0 | 0 | 0 | 55 |
39,650,312 | 2016-09-22T23:24:00.000 | 3 | 0 | 0 | 0 | python,numpy | 39,650,350 | 1 | true | 0 | 0 | If x is the array, you could use 2*(x >= 0) - 1.
x >= 0 will be an array of boolean values (i.e. False and True), but when you do arithmetic with it, it is effectively cast to an array of 0s and 1s.
You could also do np.sign(x) + (x == 0). (Note that np.sign(x) returns floating point values, even when x is an integer ... | 1 | 1 | 1 | I have a large numpy array with positive data, negative data and 0s. I want to convert it to an array with the signs of the current values such that 0 is considered positive. If I use numpy.sign it returns 0 if the current value is 0 but I want something that returns 1 instead. Is there an easy way to do this? | Convert a numpy array into an array of signs with 0 as positive | 1.2 | 0 | 0 | 2,087 |
39,652,553 | 2016-09-23T04:16:00.000 | 0 | 0 | 0 | 1 | python,python-wheel,python-install | 39,652,742 | 2 | false | 0 | 0 | You don't have to know. Use pip - it will select the most specific wheel available. | 1 | 0 | 1 | We have so may versions of wheel.
How could we know which version should be installed into my system?
I remember there is a certain command which could check my system environment.
Or is there any other ways?
---------------------Example Below this line -----------
scikit_learn-0.17.1-cp27-cp27m-win32.whl
scikit_learn... | How to know which .whl module is suitable for my system with so many? | 0 | 0 | 0 | 1,458 |
39,654,954 | 2016-09-23T07:21:00.000 | 1 | 0 | 1 | 0 | python,user-interface,frameworks | 39,655,710 | 2 | false | 0 | 1 | Yes, after all tinker and pygame are just python classes packaged as modules.
Python frameworks are a bunch of pre-tested and reusable modules that allow you to use and extend upon so you don't have to reinvent the wheel.
Yes, frameworks will have differences in usability and code.
The computer will always need the de... | 1 | 2 | 0 | Is it possible to create a user interface without the help of python framework (like tinker or pygame) and use only vanilla python code? If yes, how?
Can you briefly explain how python framework works?
Is the code of different python framework different?
If the computer did not have the framework installed, will the pr... | Making GUI with only python without framework? | 0.099668 | 0 | 0 | 4,330 |
39,654,986 | 2016-09-23T07:23:00.000 | 3 | 1 | 1 | 0 | python,compression,complexity-theory,zlib | 39,662,445 | 1 | false | 0 | 0 | Time complexity is how the processing time scales with the size of the input. For zlib, and any other compression scheme I know of, it is O(n) for both compression and decompression. The time scales linearly with the size of the input.
If you are thinking that the time complexity of decompression is less somehow, then ... | 1 | 3 | 0 | What is the time complexity of Zlib's deflate algorithm?
I understand that in Python this algorithm is made available via the zlib.compress function.
Presumably the corresponding decompression algorithm has the same or better complexity. | Time complexity of zlib's deflate algorithm | 0.53705 | 0 | 0 | 858 |
39,659,748 | 2016-09-23T11:32:00.000 | 1 | 1 | 1 | 0 | python,eclipse,python-3.x,autocomplete | 39,773,761 | 1 | true | 0 | 0 | If you are using PyDev, make sure that interpreter grammar is set to 3.0 (right click project -> Properties -> PyDev - Interpreter/Grammar) | 1 | 0 | 0 | I changed the interpreter for my python projects from 2.x to 3.5 recently. The code interpretes correctly with the 3.5 version.
I noticed that the autocompletion function of Eclipse still autocompletes as if I am using 2.x Python version. For example: print gets autocompleted without parenthesis as a statement and not ... | force eclipse to use Python 3.5 autocompletion | 1.2 | 0 | 0 | 82 |
39,660,973 | 2016-09-23T12:38:00.000 | 0 | 0 | 0 | 0 | python-2.7,audio,wav,wave | 39,747,053 | 1 | false | 1 | 0 | I found solution. The trick was to make wav file the same way as you would make it for 32 bit depth, but set LOWER(not upper) 8 bits(LSBs) to zeros. So in hex format you would have 00 xx xx 00 xx xx ... where xx are some hex numbers. | 1 | 0 | 0 | is it posible to generate wav file in python with 24bit deep and sample width 4, not 3 (3x8=24). The idea is to have 32bit deep, so that sample width of 4 (4x8=32) can be made, but i would try to make upper bits all ones (1), so that it looks like 24bit deep.
Im open to suggestions.
Thank you. | 24 bit deep wav file generator | 0 | 0 | 0 | 58 |
39,663,091 | 2016-09-23T14:18:00.000 | -1 | 0 | 0 | 1 | python,python-2.7,cmd | 39,663,773 | 3 | false | 0 | 0 | 1.Go to Environmental Variables >
system variable > Path > Edit
2.It look like this
Path C:\Program Files\Java\jdk1.8.0\bin;%SystemRoot%\system32;C:\Program Files\nodejs\;
3.You can add semicolon (;) at the end and add C:\Python27
4.After adding it look like this
C:\Program Files\Java\jdk1.8.0\bin;%SystemRoot%\syste... | 2 | 4 | 0 | I'm using windows cmd to run my python script. I want to run my python script withouth to give the cd command and the directory path.
I would like to type only the name of the python script and run it.
I'm using python 2.7 | How can I add a python script to the windows system path? | -0.066568 | 0 | 0 | 5,762 |
39,663,091 | 2016-09-23T14:18:00.000 | 1 | 0 | 0 | 1 | python,python-2.7,cmd | 69,844,640 | 3 | false | 0 | 0 | Make sure .py files are associated with the Python launcher C:\Windows\py.exe or directly with e.g. 'C:\Python27\python.exethen edit yourPATHEXTenvironment variable using (System Properties) to add;.PY` at the end. You can now launch Python files in the current directory by typing their name.
To be able to launch a giv... | 2 | 4 | 0 | I'm using windows cmd to run my python script. I want to run my python script withouth to give the cd command and the directory path.
I would like to type only the name of the python script and run it.
I'm using python 2.7 | How can I add a python script to the windows system path? | 0.066568 | 0 | 0 | 5,762 |
39,665,029 | 2016-09-23T15:59:00.000 | 1 | 1 | 0 | 0 | python | 39,665,400 | 2 | false | 0 | 0 | shutil is a very usefull thing to use when copying files.
I once needed to have a python script that moved all .mp3 files from a directory to a backup, deleted the original directory, created a new once, and moved the .mp3 files back in. shutil was perfect for thise.
The formatting for the command is how @Kieran has st... | 1 | 1 | 0 | I am very new to Python. I am curious to how I would be able to copy some files from my directory to another Users directory on my computer using python script? And would I be correct in saying I need to check the permissions of the users and files? So my question is how do I send files and also check the permissions a... | Python sending files from a user directory to another user directory | 0.099668 | 0 | 0 | 639 |
39,668,174 | 2016-09-23T19:24:00.000 | 1 | 0 | 0 | 0 | python,opencv,coordinate-transformation,homography | 39,668,864 | 2 | false | 0 | 0 | The way I see it, the problem is that homography applies a perspective projection which is a non linear transformation (it is linear only while homogeneous coordinates are being used) that cannot be represented as a normal transformation matrix. Multiplying such perspective projection matrix with some other transformat... | 1 | 2 | 1 | I am calculating an homography between two images img1 and img2 (the images contain mostly one planar object, so the homography works well between them) using standard methods in OpenCV in python. Namely, I compute point matches between the images using sift and then call cv2.findHomography.
To make the computation fas... | homography and image scaling in opencv | 0.099668 | 0 | 0 | 2,276 |
39,670,135 | 2016-09-23T21:58:00.000 | 0 | 0 | 0 | 1 | python,arm | 39,798,938 | 1 | false | 0 | 0 | Build gevent with dependencies on QEMU raspberry pi. | 1 | 1 | 0 | I want to build greenlet to use on arm32 linux box. I have an ubuntu machine, with my gcc cross-compiler for the arm target. How do I build greenlet for my target from my ubuntu machine? | Cross-compiling greenlet for linux arm target | 0 | 0 | 0 | 141 |
39,671,661 | 2016-09-24T01:34:00.000 | 0 | 0 | 1 | 0 | python,algorithm,data-structures | 39,671,924 | 3 | false | 0 | 0 | The lookup time wouldn't be O(n) because not all items need to be searched, it also depends on the number of buckets. More buckets would decrease the probability of a collision and reduce the chain length.
The number of buckets can be kept as a constant factor of the number of entries by resizing the hash table as need... | 2 | 0 | 1 | I'm teaching myself data structures through this python book and I'd appreciate if someone can correct me if I'm wrong since a hash set seems to be extremely similar to a hash map.
Implementation:
A Hashset is a list [] or array where each index points to the head of a linkedlist
So some hash(some_item) --> key, and th... | Is my understanding of Hashsets correct?(Python) | 0 | 0 | 0 | 1,427 |
39,671,661 | 2016-09-24T01:34:00.000 | 0 | 0 | 1 | 0 | python,algorithm,data-structures | 39,671,749 | 3 | false | 0 | 0 | For your first question - why is the average time complexity of a lookup O(1)? - this statement is in general only true if you have a good hash function. An ideal hash function is one that causes a nice spread on its elements. In particular, hash functions are usually chosen so that the probability that any two element... | 2 | 0 | 1 | I'm teaching myself data structures through this python book and I'd appreciate if someone can correct me if I'm wrong since a hash set seems to be extremely similar to a hash map.
Implementation:
A Hashset is a list [] or array where each index points to the head of a linkedlist
So some hash(some_item) --> key, and th... | Is my understanding of Hashsets correct?(Python) | 0 | 0 | 0 | 1,427 |
39,672,376 | 2016-09-24T04:07:00.000 | 0 | 0 | 0 | 0 | python,class | 39,672,721 | 1 | false | 0 | 0 | I would say yes. Basically I want to:
Take the unique set of data
Filter it so that just a subset is considered (filter parameters can be time of recording for example)
Use a genetic algorithm the filtered data to match on average a target.
Step 3 is irrelevant to the post, I just wanted to give the big picture in or... | 1 | 1 | 1 | I'm planning to develop a genetic algorithm for a series of acceleration records in a search to find optimum match with a target.
At this point my data is array-like with a unique ID column, X,Y,Z component info in the second, time in the third etc...
That being said each record has several "attributes". Do you think i... | Organizing records to classes | 0 | 0 | 0 | 17 |
39,678,374 | 2016-09-24T16:11:00.000 | 1 | 0 | 1 | 0 | python,multithreading,queue | 39,678,524 | 1 | false | 0 | 0 | If you don't cap the size, the Queue can grow until you run out of memory. So no size limit is imposed by Python, but your machine still has finite resources.
In some applications (probably most), the programmer knows memory consumption can't become a problem, due to the specific character of their application.
But if... | 1 | 1 | 0 | so I have Queue.Queue()
i have bunch of producers who puts jobs into that Queue.Queue() and bunch of consumers who pops from the queue
1) is there benefit of capping the Queue size vs. not doing so?
2) by not capping the size, does it really not have any size limit? can grow forever?
I've noticed that deadlock seems to... | python: queue.queue() best practice to set size? | 0.197375 | 0 | 0 | 1,074 |
39,679,167 | 2016-09-24T17:38:00.000 | 3 | 0 | 0 | 0 | python,django | 39,679,214 | 1 | false | 1 | 0 | You're confusing two different things here. A class can easily have an attribute that is a list which contains instances of another class, there is nothing difficult about that.
(But note that there is no way in which a Message should extend MessageBox; this should be composition, not inheritance.)
However then you go... | 1 | 0 | 0 | I have been having trouble using django. Right now, I have a messagebox class that is suppose to hold messages, and a message class that extends it. How do I make it so messagebox will hold messages?
Something else that I cannot figure out is how classes are to interact. Like, I have a user that can send messages. Shou... | How can a class hold an array of classes in django | 0.53705 | 0 | 0 | 121 |
39,679,473 | 2016-09-24T18:09:00.000 | 0 | 0 | 0 | 0 | python,tkinter,pyqt,pyqt4 | 39,681,979 | 2 | false | 0 | 1 | No, there is no way to combine widgets from PyQt and Tkinter in a single app. At least, not without resorting to running each toolkit in a separate thread or process. You can't embed the widgets of one into the widgets of the other. | 2 | 1 | 0 | I have an image editor created in tkinter. However, I would add a floating widgets that exist in PyQt. Is there any way to run integrated tkinter with PyQt? | Using widgets intregrated. PyQT with Tkinter | 0 | 0 | 0 | 367 |
39,679,473 | 2016-09-24T18:09:00.000 | 1 | 0 | 0 | 0 | python,tkinter,pyqt,pyqt4 | 39,689,904 | 2 | false | 0 | 1 | I make a workaround that solved the problem. I used python subprocess for call the PyQT instance and the option QtCore.Qt.WindowStaysOnTopHint for app running on top of tkinter. It´s work.
but the best solution is to create a thread in python and call PyQt in this thread. In this case it is possible to pass an instance... | 2 | 1 | 0 | I have an image editor created in tkinter. However, I would add a floating widgets that exist in PyQt. Is there any way to run integrated tkinter with PyQt? | Using widgets intregrated. PyQT with Tkinter | 0.099668 | 0 | 0 | 367 |
39,680,467 | 2016-09-24T20:05:00.000 | 1 | 0 | 1 | 0 | python,encoding,output | 41,566,970 | 1 | true | 0 | 0 | The bytes type in Python is what I should have been using for this. Though I didn't quite understand it when I was posting the question, I needed a list of single-byte variables. This is exactly what the bytes object does, and even better, it can be used exactly like a string. | 1 | 0 | 0 | For example: the character \x80, or 128 in decimal, has no UTF-8 character assigned to it. But if I understand text files correctly, I should still be able to create a file that contains that character, even if nothing can display it. However, when I try to print an array that contains one of these characters, it write... | Write unmapped characters to file? | 1.2 | 0 | 0 | 146 |
39,681,631 | 2016-09-24T22:45:00.000 | 1 | 0 | 1 | 1 | python,subprocess,chroot,isolation | 39,681,690 | 1 | false | 0 | 0 | I don't know if you have an objection to using a 3'rd party communication library for your task but this sounds like what ZeroMQ would be used for. | 1 | 1 | 0 | I am currently working on a personal project where I have to run two processes simultaneously. The problem is that I have to isolate each of them (they cannot communicate between them or with my system) and I must be able to control their stdin, stdout and stderr. Is there anyway I can achieve this?
Thank you! | Subprocess Isolation in Python | 0.197375 | 0 | 0 | 324 |
39,681,639 | 2016-09-24T22:46:00.000 | 3 | 0 | 1 | 0 | python,memory-management,linked-list | 39,681,668 | 2 | true | 0 | 0 | First, you're evidently talking about a 32-bit machine since your pointers and values are 4 bytes. Obviously, that's different for a 64-bit machine.
Second, the value needn't be 4 bytes. Frequently the value is a pointer or an int, in which case it is 4 bytes (on your 32-bit machine). But if it was a double, for exa... | 2 | 1 | 0 | I understand that a node is usually 8 bytes, 4 for a value, 4 for a pointer in a singly linked list.
Does this mean that a doubly linked list node is 12 bytes in memory with two pointers?
Also this book I'm reading talks about how theres 8 bytes of "overhead" for every 12 byte node, what does this refer to? | What does "overhead" memory refer to in the case of Linked Lists? | 1.2 | 0 | 0 | 1,495 |
39,681,639 | 2016-09-24T22:46:00.000 | 0 | 0 | 1 | 0 | python,memory-management,linked-list | 39,681,696 | 2 | false | 0 | 0 | Does this mean that a doubly linked list node is 12 bytes in memory with two pointers?
Yes, if the data is 4 bytes, and the code is compiled for 32bit and not 64bit, so 4 bytes per pointer.
Also this book I'm reading talks about how theres 8 bytes of "overhead" for every 12 byte node, what does this refer to?
That m... | 2 | 1 | 0 | I understand that a node is usually 8 bytes, 4 for a value, 4 for a pointer in a singly linked list.
Does this mean that a doubly linked list node is 12 bytes in memory with two pointers?
Also this book I'm reading talks about how theres 8 bytes of "overhead" for every 12 byte node, what does this refer to? | What does "overhead" memory refer to in the case of Linked Lists? | 0 | 0 | 0 | 1,495 |
39,683,194 | 2016-09-25T03:49:00.000 | 0 | 0 | 1 | 0 | python,visual-studio,ptvs | 39,732,669 | 1 | false | 0 | 0 | I have just reinstalled windows 10, python, and visual studio again. It works now. I have no clue why it did not work before. | 1 | 1 | 0 | I am trying to use PTVS in visual studio, but cannot set python interpreter. I installed visual studio enterprise 2015 and installed python 3.5.2.
I opened python environment in visual studio, but I cannot find installed interpreter, even cannot click the '+custom' button.
Please let me know if someone experienced sa... | I am trying to use PTVS in visual studio, but cannot set python interpreter | 0 | 0 | 0 | 298 |
39,687,586 | 2016-09-25T13:53:00.000 | 0 | 0 | 0 | 0 | python | 39,687,703 | 2 | false | 0 | 0 | Most probably you use SOCK_STREAM type socket. This is a TCP socket and that means that you push data to one side and it gets from the other side in the same order and without missing chunks, but there are no delimiters. So send() just sends data and recv() receives all the data available to the current moment.
You can... | 1 | 1 | 0 | SORRY FOR BAD ENGLISH
Why if I have two send()-s on the server, and two recv()-s on the client, sometimes the first recv() will get the content of the 2nd send() from the server, without taking just the content of the first one and let the other recv() to take the "due and proper" content of the other send()?
How can I... | Weird behavior of send() and recv() | 0 | 0 | 1 | 66 |
39,691,547 | 2016-09-25T20:31:00.000 | 0 | 0 | 0 | 1 | python,cmd,command-line,sublimetext3,command-prompt | 66,841,135 | 5 | false | 0 | 0 | After adding the path variable, restart your PC, worked like a charm. | 3 | 3 | 0 | when I run the subl command, it just pauses for a moment and doesn't give me any feedback as to what happened and doesn't open. I am currently on windows 10 running the latest sublime text 3 build. I already copied my subl.exe from my sublime text 3 directory to my system32 directory. What am I missing? I've tried subl... | Sublime Text 3 subl command not working in Windows 10 | 0 | 0 | 0 | 7,531 |
39,691,547 | 2016-09-25T20:31:00.000 | 1 | 0 | 0 | 1 | python,cmd,command-line,sublimetext3,command-prompt | 60,349,655 | 5 | false | 0 | 0 | You can add gitbash alias like below
open a gitbash terminal and type
alias subl="/c/Program\ Files/Sublime\ Text\ 3/subl.exe"
then try subl . from gitbash
you can also add permanent alias for git bash like below
Go to: C:\Users\ [youruserdirectory] \
make a .bash_profile file
open it with text editor
add the a... | 3 | 3 | 0 | when I run the subl command, it just pauses for a moment and doesn't give me any feedback as to what happened and doesn't open. I am currently on windows 10 running the latest sublime text 3 build. I already copied my subl.exe from my sublime text 3 directory to my system32 directory. What am I missing? I've tried subl... | Sublime Text 3 subl command not working in Windows 10 | 0.039979 | 0 | 0 | 7,531 |
39,691,547 | 2016-09-25T20:31:00.000 | 1 | 0 | 0 | 1 | python,cmd,command-line,sublimetext3,command-prompt | 63,048,909 | 5 | false | 0 | 0 | After adding a path environmental variable, you have just to type subl.exe in command prompt | 3 | 3 | 0 | when I run the subl command, it just pauses for a moment and doesn't give me any feedback as to what happened and doesn't open. I am currently on windows 10 running the latest sublime text 3 build. I already copied my subl.exe from my sublime text 3 directory to my system32 directory. What am I missing? I've tried subl... | Sublime Text 3 subl command not working in Windows 10 | 0.039979 | 0 | 0 | 7,531 |
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