Title stringlengths 15 150 | A_Id int64 2.98k 72.4M | Users Score int64 -17 470 | Q_Score int64 0 5.69k | ViewCount int64 18 4.06M | Database and SQL int64 0 1 | Tags stringlengths 6 105 | Answer stringlengths 11 6.38k | GUI and Desktop Applications int64 0 1 | System Administration and DevOps int64 1 1 | Networking and APIs int64 0 1 | Other int64 0 1 | CreationDate stringlengths 23 23 | AnswerCount int64 1 64 | Score float64 -1 1.2 | is_accepted bool 2
classes | Q_Id int64 1.85k 44.1M | Python Basics and Environment int64 0 1 | Data Science and Machine Learning int64 0 1 | Web Development int64 0 1 | Available Count int64 1 17 | Question stringlengths 41 29k |
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Accessing Google Groups Services on Google Apps Script in Google App Engine? | 12,881,937 | 2 | 1 | 221 | 0 | python,google-app-engine,google-apps-script | No you can't. AS and GAE are totally different things and won't work together.
What you can really do is (abstract):
write an AS that does what you need
redirect from GAE to the AS url to make sure that the user logs-in/grants permissions.
perform what you needed to do with AS
send back the user to GAE with a bunch of... | 0 | 1 | 0 | 0 | 2012-10-14T11:35:00.000 | 2 | 1.2 | true | 12,881,834 | 0 | 0 | 1 | 1 | I'm trying to work out if it is possible to use Google Apps Scripts inside Google App Engine?
And if there is a tutorial in doing this out there ?
Through reading Google's App Script site I get the feeling that you can only use app scripts inside Google Apps like Drive, Docs etc?
What I would like to do is to be able... |
Get notified when celery workers die | 12,898,127 | 1 | 1 | 699 | 0 | python,celery | A worker can't trigger signals after it has been killed.
The best way would be to write a plugin for Nagios, Munin or similar to notify when
the number of workers decrease. See the Monitoring and Management guide in the Celery documentation. | 0 | 1 | 0 | 0 | 2012-10-15T12:25:00.000 | 1 | 1.2 | true | 12,895,653 | 0 | 0 | 0 | 1 | Where's the best place to get notified when celery workers die?
I'm aware of the worker_shutdown signal but does it get called also in sudden death of workers?
I have these pdf rendering workers and they suddenly died or at least became unresponsive to remote control commands so I'm looking for ways so I can get notifi... |
How can I run a celery periodic task from the shell manually? | 12,900,160 | 8 | 89 | 60,194 | 0 | python,django,celery,django-celery,celery-task | I think you'll need to open two shells: one for executing tasks from the Python/Django shell, and one for running celery worker (python manage.py celery worker). And as the previous answer said, you can run tasks using apply() or apply_async()
I've edited the answer so you're not using a deprecated command. | 0 | 1 | 0 | 1 | 2012-10-15T16:34:00.000 | 3 | 1 | false | 12,900,023 | 0 | 0 | 1 | 1 | I'm using celery and django-celery. I have defined a periodic task that I'd like to test. Is it possible to run the periodic task from the shell manually so that I view the console output? |
How to Transfer Files from Client to Server Computer by using python script? | 66,757,126 | -1 | 2 | 9,452 | 0 | python | I used the same script, but my host failed to respond. My host is in different network.
WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond | 0 | 1 | 1 | 1 | 2012-10-16T07:14:00.000 | 2 | -0.099668 | false | 12,909,334 | 0 | 0 | 0 | 1 | I am writing a python script to copy python(say ABC.py) files from one directory to another
directory with the same folder name(say ABC) as script name excluding .py.
In the local system it works fine and copying the files from one directory to others by
creating the same name folder.
But actually I want copy these fi... |
Aliases for commands with Python cmd module | 12,911,826 | 1 | 10 | 3,225 | 0 | python,python-3.x | The docs mention a default method, which you can override to handle any unknown command. Code it to prefix scan a list of commands and invoke them as you suggest for do_alias. | 0 | 1 | 0 | 0 | 2012-10-16T09:16:00.000 | 3 | 0.066568 | false | 12,911,327 | 0 | 0 | 0 | 1 | How can I create an alias for a command in a line-oriented command interpreter implemented using the cmd module?
To create a command, I must implement the do_cmd method. But I have commands with long names (like constraint) and I want to provide aliases (in fact, shortcuts) for these commands (like co). How can I do th... |
PWM signal out of serial port with linux | 12,919,968 | 1 | 4 | 1,468 | 0 | c++,python,embedded | doubt you can do this you are using a uart interface...just get an arduino or someat and send serial commands to the arduino (serial pins) which then puts the correct pwm signal out its pins ... probably 5 lines of arduino code and another 5 of python code ...
all that said you may be able to find some very difficult a... | 0 | 1 | 0 | 1 | 2012-10-16T16:50:00.000 | 2 | 0.099668 | false | 12,919,644 | 0 | 0 | 0 | 1 | How to to send out a pwm signal from the serial port with linux? (With python or c++)
I want to connect a motor directly to change the speed rotation. |
GAE: Instance shutdown from source code | 12,921,291 | 1 | 0 | 144 | 0 | python,google-app-engine | If can disable an entire application (from Application Settings page) for sometime and then reenable it (or you can delete it from that point onwards).
There is no way you can "shutdown" a particular instance. You can have different version of your application, but at any moment in time, you can only have only one inst... | 0 | 1 | 0 | 0 | 2012-10-16T18:28:00.000 | 2 | 1.2 | true | 12,921,120 | 0 | 0 | 1 | 2 | In user interface of Google App Engine, in "Instances" I can shutdown selected instances by press button "Shutdown".
Can I do shutdown by program from source code? |
GAE: Instance shutdown from source code | 12,944,920 | 0 | 0 | 144 | 0 | python,google-app-engine | Actually you can force an instance to shutdown within your code, but it's not pretty.
Just allocate more memory than you instance has, it will be then shutdown for you.
I have used this technique in some python2.5 M/S apps where a DeadlineExceeded during startup could cause problems with incomplete imports. If the nex... | 0 | 1 | 0 | 0 | 2012-10-16T18:28:00.000 | 2 | 0 | false | 12,921,120 | 0 | 0 | 1 | 2 | In user interface of Google App Engine, in "Instances" I can shutdown selected instances by press button "Shutdown".
Can I do shutdown by program from source code? |
CPython and GCC | 12,932,872 | 5 | 1 | 295 | 0 | python | Python is implemented in C, and records what version of the C compiler was used to compile it (to aid tracking down compiler-specific bugs).
The implementation itself does not vary based on the compiler. It can vary based on the platform it is compiled for, and the available external libraries, but there is nothing alt... | 0 | 1 | 0 | 0 | 2012-10-17T10:46:00.000 | 1 | 1.2 | true | 12,932,610 | 1 | 0 | 0 | 1 | If I start python under MacOS X 10.8 in the console it starts with "Python 2.7.2 (default, Jun 20 2012, 16:23:33)
[GCC 4.2.1 Compatible Apple Clang 4.0 (tags/Apple/clang-418.0.60)] on darwin".
In what way does the implementation of python depend on GCC? |
Can I run py2app on Windows? | 72,331,122 | 0 | 10 | 5,722 | 0 | python,windows,py2app | No, There's no way on earth you can run py2app on windows,py2app cannot create a Mac app bundle in windows because it's impossible to do so... Either hackintosh your pc or emulate a mac using QEMU,VMware or VirtualBox! | 0 | 1 | 0 | 0 | 2012-10-17T15:33:00.000 | 2 | 0 | false | 12,937,916 | 1 | 0 | 0 | 1 | I recently discovered that an outdated version of Python was causing my Wx app to run into errors.
I can't install Python 2.7.3 on my Mac, and when I tried it in a virtual machine, py2app was still "compiling" the app after running overnight (my Windows/Linux box has an ≈1GHz processor).
Is there a version of py2app th... |
Close TCP port 80 and 443 after forking in Django | 12,947,246 | 2 | 5 | 256 | 0 | python,django,linux,apache2 | If you use the subprocess module to execute the script, the close_fds argument to the Popen constructor will probably do what you want:
If close_fds is true, all file descriptors except 0, 1 and 2 will be closed before the child process is executed.
Assuming they weren't simply closed, the first three file descriptor... | 0 | 1 | 0 | 0 | 2012-10-18T03:38:00.000 | 1 | 1.2 | true | 12,946,708 | 0 | 0 | 1 | 1 | I am trying to fork() and exec() a new python script process from within a Django app that is running in apache2/WSGI Python. The new python process is daemonized so that it doesn't hold any association to apache2, but I know the HTTP ports are still open. The new process kills apache2, but as a result the new python... |
iPython filepath autocompletion | 15,759,634 | 2 | 4 | 910 | 0 | python,ipython | Just now I have a try with ipython on my mac, auto-complete works well when dealing with space-contained directory. The ipython version I used is 0.13.1. Perhaps simple upgrade your ipython can solve. | 0 | 1 | 0 | 0 | 2012-10-18T10:57:00.000 | 1 | 1.2 | true | 12,953,040 | 1 | 0 | 0 | 1 | I am running iPython v0.13 on windows 7 64-bit. (qtconsole --pylab=inline)
When I type %cd 'C:/Users/My Name/Downloads' it takes me to the desired location.
When I tab auto-complete between directories the auto-complete fails if directories have a space in their names (as in the example).
Is there a reason for this and... |
Merge (append) GAE datastores from different apps | 12,958,199 | 0 | 1 | 52 | 0 | python,google-app-engine,google-cloud-datastore | You can use UrlFetch in App2 to request all the data you need from App1 and proces it to create your merged result. It is quite easy to serve and serialize the entities (with a cursor) using JSON for the data exchange in App1. | 0 | 1 | 0 | 0 | 2012-10-18T14:06:00.000 | 2 | 0 | false | 12,956,582 | 0 | 0 | 1 | 1 | I have 2 different apps that are basically identical but I had to setup a 2nd app because of GAE billing issues.
I want to merge the datastore data from the 1st app with the 2nd apps data store. By merge, I simply want to append the 2 data stores. To help w/visualise
App1:
SomeModel
AnotherModel
App2:
SomeModel
Ano... |
Preserving bash redirection in a python subprocess | 12,960,474 | 0 | 0 | 1,449 | 0 | python,redirect,subprocess | You can use existing file descriptors as the stdout/stderr arguments to subprocess.Popen. This should be exquivalent to running from with redirection from bash. That redirection is implemented with fdup(2) after fork and the output should never touch your program. You can probably also pass fopen('/dev/null') as a file... | 0 | 1 | 0 | 1 | 2012-10-18T17:23:00.000 | 3 | 0 | false | 12,960,276 | 0 | 0 | 0 | 2 | To begin with, I am only allowed to use python 2.4.4
I need to write a process controller in python which launches and various subprocesses monitors how they affect the environment. Each of these subprocesses are themselves python scripts.
When executed from the unix shell, the command lines look something like this:... |
Preserving bash redirection in a python subprocess | 12,961,812 | 0 | 0 | 1,449 | 0 | python,redirect,subprocess | The subprocess module is good.
You can also do this on *ix with os.fork() and a periodic os.wait() with a WNOHANG. | 0 | 1 | 0 | 1 | 2012-10-18T17:23:00.000 | 3 | 0 | false | 12,960,276 | 0 | 0 | 0 | 2 | To begin with, I am only allowed to use python 2.4.4
I need to write a process controller in python which launches and various subprocesses monitors how they affect the environment. Each of these subprocesses are themselves python scripts.
When executed from the unix shell, the command lines look something like this:... |
Installing Chrome Native Client SDK | 13,452,816 | 0 | 1 | 1,326 | 0 | python,google-nativeclient | I got a solution-
not a direct one, though.
managed to use a program to redirect the HTTPS traffic through the HTTP proxy.
I used the program called "proxifier". Works great. | 0 | 1 | 1 | 0 | 2012-10-18T22:21:00.000 | 2 | 1.2 | true | 12,964,666 | 0 | 0 | 0 | 1 | For the last few days I have been trying ti install the Native Client SDK for chrome in Windows and/or Ubuntu.
I'm behind a corporate network, and the only internet access is through an HTTP proxy with authentication involved.
When I run "naclsdk update" in Ubuntu, it shows
"urlopen error Tunnel connection failed: 407... |
Copy file from UNIX to Windows using script | 12,973,389 | 1 | 2 | 1,745 | 0 | python,windows,shell,unix | Have you considered using Cygwin together with rsync? You could write a small bash script that uses rsync to fetch the files you need, and run this as a daily cron job. | 0 | 1 | 0 | 0 | 2012-10-19T10:38:00.000 | 2 | 0.099668 | false | 12,972,530 | 0 | 0 | 0 | 2 | I would like to write a script to automate a task which I do manually everyday. This task requires me to download some files from a UNIX server (Solaris) to my desktop (Windows XP) using WinSCP. Is there any way to copy/move the files from a path in the UNIX server to a path in my Windows XP PC using Python or shell sc... |
Copy file from UNIX to Windows using script | 12,972,627 | 2 | 2 | 1,745 | 0 | python,windows,shell,unix | If you are planning to use python, then you can use paramiko library. It has sftp support. Once you have the file on windows, use shutils library to move it to your path on windows | 0 | 1 | 0 | 0 | 2012-10-19T10:38:00.000 | 2 | 0.197375 | false | 12,972,530 | 0 | 0 | 0 | 2 | I would like to write a script to automate a task which I do manually everyday. This task requires me to download some files from a UNIX server (Solaris) to my desktop (Windows XP) using WinSCP. Is there any way to copy/move the files from a path in the UNIX server to a path in my Windows XP PC using Python or shell sc... |
Efficient way to do large IN query in Google App Engine? | 12,980,347 | 0 | 3 | 176 | 1 | python,google-app-engine | I misunderstood part of your problem, I thought you were issuing a query that was giving you 250 entities.
I see what the problem is now, you're issuing an IN query with a list of 250 phone numbers, behind the scenes, the datastore is actually doing 250 individual queries, which is why you're getting 250 read ops.
I ca... | 0 | 1 | 0 | 0 | 2012-10-19T14:43:00.000 | 3 | 0 | false | 12,976,652 | 0 | 0 | 1 | 1 | A user accesses his contacts on his mobile device. I want to send back to the server all the phone numbers (say 250), and then query for any User entities that have matching phone numbers.
A user has a phone field which is indexed. So I do User.query(User.phone.IN(phone_list)), but I just looked at AppStats, and is th... |
Modify a Google App Engine entity id? | 13,069,255 | 3 | 2 | 1,404 | 0 | python,google-app-engine | The entity ID forms part of the primary key for the entity, so there's no way to change it. Changing it is identical to creating a new entity with the new key and deleting the old one - which is one thing you can do, if you want.
A better solution would be to create a PhoneNumber kind that provides a reference to the a... | 0 | 1 | 0 | 0 | 2012-10-19T15:05:00.000 | 1 | 1.2 | true | 12,977,110 | 0 | 0 | 1 | 1 | I'm using Google App Engine NDB. Sometimes I will want to get all users with a phone number in a specified list. Using queries is extremely expensive for this, so I thought I'll just make the id value of the User entity the phone number of the user so I can fetch directly by ids.
The problem is that the phone number fi... |
How can I defer the execution of Celery tasks? | 36,787,909 | 2 | 18 | 25,567 | 0 | python,django,celery,django-celery | I think you are trying to avoid race condition of your own scripts, not asking for a method to delay a task run.
Then you can create a task, and in that task, call each of your task with .apply(), not .apply_async() or .delay(). So that these tasks run sequentially | 0 | 1 | 0 | 0 | 2012-10-22T06:42:00.000 | 3 | 0.132549 | false | 13,006,151 | 0 | 0 | 1 | 1 | I have a small script that enqueues tasks for processing. This script makes a whole lot of database queries to get the items that should be enqueued. The issue I'm facing is that the celery workers begin picking up the tasks as soon as it is enqueued by the script. This is correct and it is the way celery is supposed t... |
Writing raw IP data to an interface (linux) | 13,040,908 | 2 | 3 | 2,540 | 0 | python,linux,networking,packet | No; there is no /dev/eth1 device node -- network devices are in a different namespace from character/block devices like terminals and hard drives. You must create an AF_PACKET socket to send raw IP packets. | 0 | 1 | 1 | 0 | 2012-10-23T23:25:00.000 | 2 | 0.197375 | false | 13,040,834 | 0 | 0 | 0 | 1 | I have a file which contains raw IP packets in binary form. The data in the file contains a full IP header, TCP\UDP header, and data. I would like to use any language (preferably python) to read this file and dump the data onto the line.
In Linux I know you can write to some devices directly (echo "DATA" > /dev/devic... |
Is using Celery for task management in cluster good idea? | 13,068,496 | 4 | 1 | 858 | 0 | python,cloud,celery,distributed-computing | IMHO It's a very good idea. I have used it few times in Amazon EC2 in this manner and it was great each time.
One of the big advantages is that it can handle failure of worker servers, so the dynamic nature of the infrastructure is not a problem and you still get things done.
I'm sorry that this answer is so brief, but... | 0 | 1 | 0 | 0 | 2012-10-25T12:12:00.000 | 1 | 1.2 | true | 13,068,300 | 0 | 0 | 0 | 1 | I'm going to use Celery to manage tasks in cluster. There will be one master server and some worker servers. Master sends tasks to the worker servers (any number) and gets the result. Task state should be trackable. Backend is RabbitMQ.
Is using Celery in this case a good Idea? Or are there better solutions? |
Start Another Program From Python >Separately< | 13,078,126 | 2 | 8 | 13,835 | 0 | python,subprocess | When I use subprocess.Popen, it starts the separate program, but does so under the original program's Python instance...
Incorrect.
... so that they share the first Python console.
This is the crux of your problem. If you want it to run in another console then you must run another console and tell it to run your pro... | 0 | 1 | 0 | 0 | 2012-10-25T22:08:00.000 | 2 | 0.197375 | false | 13,078,071 | 1 | 0 | 0 | 1 | I'm trying to run an external, separate program from Python. It wouldn't be a problem normally, but the program is a game, and has a Python interpreter built into it. When I use subprocess.Popen, it starts the separate program, but does so under the original program's Python instance, so that they share the first Pytho... |
What is a good storage candidate for soft-realtime data acquisition under Linux? | 13,102,233 | -1 | 7 | 877 | 0 | python,linux,storage,hdf5,data-acquisition | In your case, you could just create 15 files and save each sample sequentially into the corresponding file. This will make sure the requested samples are stored continuous on disk and hence reduce the number of disk seeks while reading. | 0 | 1 | 0 | 0 | 2012-10-26T09:55:00.000 | 3 | -0.066568 | false | 13,084,686 | 0 | 0 | 0 | 2 | I'm building a system for data acquisition. Acquired data typically consists of 15 signals, each sampled at (say) 500 Hz. That is, each second approx 15 x 500 x 4 bytes (signed float) will arrive and have to persisted.
The previous version was built on .NET (C#) using a DB4O db for data storage. This was fairly efficie... |
What is a good storage candidate for soft-realtime data acquisition under Linux? | 13,143,593 | 2 | 7 | 877 | 0 | python,linux,storage,hdf5,data-acquisition | Using the keys you described, you should able to scale via sharding if necesssary. 120kB / 30sec ist not that much, so i think you do not need to shard too early.
If you compare that to just using files you'll get more sophisticated queries and build in replication for high availability, DS or offline processing (Map R... | 0 | 1 | 0 | 0 | 2012-10-26T09:55:00.000 | 3 | 0.132549 | false | 13,084,686 | 0 | 0 | 0 | 2 | I'm building a system for data acquisition. Acquired data typically consists of 15 signals, each sampled at (say) 500 Hz. That is, each second approx 15 x 500 x 4 bytes (signed float) will arrive and have to persisted.
The previous version was built on .NET (C#) using a DB4O db for data storage. This was fairly efficie... |
Running a Python Application at Startup | 13,097,273 | 0 | 1 | 791 | 0 | python,linux | If it is the login program for X11, you can put it into ~/.xinitrc. It is X session startup script. | 0 | 1 | 0 | 0 | 2012-10-27T00:11:00.000 | 2 | 0 | false | 13,095,994 | 0 | 0 | 0 | 1 | I am trying to write a custom login program for a linux system using Python 3. what is the best way to have an application automatically run at startup? |
Can I deploy (update) Single Python file to existing Google App Engine application? | 13,102,795 | 5 | 4 | 1,137 | 0 | python,google-app-engine,deployment | No, there isn't. If you change one file, you need to package and upload the whole application. | 0 | 1 | 0 | 0 | 2012-10-27T06:52:00.000 | 1 | 1.2 | true | 13,097,975 | 0 | 0 | 1 | 1 | Is it possible to update single py file in existing GAE app.something like we update cron.yaml using, appcfg.py update_cron
Is there any way to update .py file?
Regrads. |
Fastest way to write to a log in python | 13,099,158 | 2 | 1 | 2,514 | 0 | python,logging,uwsgi,gevent | If latency is a crucial factor for your app, undefinitely writing to disk could make things really bad.
If you want to survive a reboot of your server while redis is still down i see no other solutions than writing to disk, otherwise you may want to try with a ramdisk.
Are you sure having a second server with a second ... | 0 | 1 | 0 | 0 | 2012-10-27T09:50:00.000 | 2 | 1.2 | true | 13,099,032 | 0 | 0 | 1 | 1 | I am using the gevent loop in uWSGI and I write to a redis queue. I get about 3.5 qps. On occasion, there will be an issue with the redis connection so....if fail, then write to a file where I will have a separate process do cleanup later. Because my app very latency aware, what is the fastest way to dump to disk in... |
Can someone help walk me through installing PyOpenCL using Cygwin? | 13,387,079 | 0 | 0 | 1,353 | 0 | python,python-2.7,cygwin,opencl,pyopencl | Did you install Python into Cygwin?
If not, launch setup.exe, get to the packages screen, and do a search for python.
You can install 2.6.8 and 3 side by side if you want.
After that it's like using python anywhere else. You can do a $ python my.py to run my.py. You can install easy_install or pip, etc. if they'll h... | 0 | 1 | 0 | 0 | 2012-10-27T21:19:00.000 | 2 | 0 | false | 13,104,279 | 1 | 0 | 0 | 1 | I cannot figure out how to install pyopencl with Cygwin. Never used Cygwin before so I am very lost as to how I initiate python and use it to run my .py setup files. |
What is good software design practice for taking multiple pairs of files on the command line? | 13,114,163 | 1 | 0 | 65 | 0 | python,software-design | If files logically belong together in pairs, the least error prone method is probably to require them to be entered together, e.g.
mycommand -Pair FileA1,FileA1 -Pair FileB1, FileB2
That way, you can enforce the contract that files must be entered in pairs (any -Pair argument without two input files can generate an e... | 0 | 1 | 0 | 0 | 2012-10-28T23:30:00.000 | 1 | 1.2 | true | 13,114,116 | 1 | 0 | 0 | 1 | I'm writing a Python script that takes five pairs of files as arguments. I would like to allow the user to input these files as command-line arguments, but I'm worried he will put the files in the wrong order or not put a file right after the file it's paired with. How can I design my command-line arguments to avoid ... |
Twisted Conch - Flow control | 13,274,700 | 3 | 5 | 485 | 0 | python,ssh,twisted | I haven't used Twisted and don't know Conch at all, but with nobody else answering, I'll give it a shot.
As a general principle, you probably want to buffer very little if any in the middle of the network. (Jim Gettys' notes on "buffer bloat" are enlightening.) So it's clear that you're asking a sensible question.
I as... | 0 | 1 | 0 | 0 | 2012-10-29T07:28:00.000 | 1 | 0.53705 | false | 13,117,502 | 0 | 0 | 0 | 1 | I have a Twisted Conch SSH server and the typical scenario is this:
git via OpenSSH client >>--- WAN1 --->> Twisted conch svr >>--- WAN2 -->> Git server
There will be occassions that the 'git push' is sending data faster over WAN1 than I can proxy it over WAN2, so I need to tell the client to slow down (well before a... |
Python - get file path programmatically? | 13,140,093 | 1 | 1 | 598 | 0 | python,windows,path,os.system | I think you can add the location of the files in the PATH environment variable. Follow the steps: Go to My Computer->Right click->Properties->Advanced System Settings->Click Environmental Variables. Now click PATH and then click EDIT. In the variable value field, go to the end and append ';' (without quotes) and then a... | 0 | 1 | 0 | 0 | 2012-10-30T00:41:00.000 | 1 | 1.2 | true | 13,131,699 | 1 | 0 | 0 | 1 | I am trying to create a Python program that uses the os.system() function to create a new process (application) based on user input... However, this only works when the user inputs "notepad.exe". It does not work, for instance, when a user inputs "firefox.exe". I know this is a path issue because the error says that th... |
How to run a command on an app and get the exit code on cloudfoundry | 13,139,010 | 1 | 2 | 127 | 0 | python,ssh,cloud-foundry | I assume you mean get the result from outside of CloudFoundry (i.e. not one app launching another app and getting result, stdout and stderr).
You can only access CloudFoundry apps over http(s), so you would have to find a way to wrap your invocation into something that exposes everything you need as http. | 0 | 1 | 0 | 0 | 2012-10-30T10:18:00.000 | 1 | 0.197375 | false | 13,136,885 | 0 | 0 | 1 | 1 | We need to run arbitrary commands on cloudfoundry. (The deployed apps are Python/Django, but the language for this solution does not matter). Ideally over ssh, but the protocol does not matter.
We need a reliable way to get the exit code of the command that was run, as well as its stderr and stdout. If possible, the co... |
Why do pythonics prefer pip over their OS's package managers? | 13,138,198 | 7 | 5 | 207 | 0 | python,pip,package-managers | There are two main reasons that Pythonistas generally recommend pip. The first is that it is the one package manager that is pretty much guaranteed to come with a Python installation, and therefore, independent of the OS on which you are using it. This makes it easier to provide instructions that work on Windows and OS... | 0 | 1 | 0 | 0 | 2012-10-30T11:30:00.000 | 1 | 1.2 | true | 13,138,077 | 1 | 0 | 0 | 1 | When reading tutorials and readmes I often see people advertising to install python packages with pip, even when they are using an operating system, which has a nice package manager like apt. Yet in real life I only met people who would only install things with their OS's package manager, reasoning that this package ma... |
Appengine SDK 1.7.3 not detecting updated files | 13,638,216 | 3 | 3 | 294 | 0 | python,google-app-engine | A similiar issue happens with appcfg.py in SDK 1.73, where it skips uploading some files sometimes. It looks like this only happens if appcfg.py is run under python 2.7.
The workaround is to simply run appcfg.py under python 2.5. Then the upload works reliably.
The code uploaded can still be 2.7 specific - it is only ... | 0 | 1 | 0 | 0 | 2012-10-30T22:29:00.000 | 2 | 0.291313 | false | 13,148,512 | 0 | 0 | 1 | 1 | I just updated to SDK 1.7.3 running on Linux. At the same time I switched to the SQLite datastore stub, suggested by the depreciation message.
After this, edits to source files are not always detected, and I have to stop and restart the SDK after updating, probably one time in ten. Is anyone else seeing this? Any ideas... |
Efficient way to store comments in Google App Engine? | 13,151,123 | 2 | 2 | 171 | 0 | python,google-app-engine | If comments are threaded, storing them as separate entities might make sense.
If comments can be the target of voting, storing them as separate entities makes sense.
If comments can be edited, storing them as separate entities reduces contention, and avoids having to either do pessimistic locking on all comments, or ri... | 0 | 1 | 0 | 0 | 2012-10-31T00:41:00.000 | 2 | 0.197375 | false | 13,149,663 | 0 | 0 | 1 | 1 | With Google App Engine, an entity is limited to 1 MB in size. Say I have a blog system, and expect thousands of comments on each article, some paragraphs in lengths. Typically, without a limit, you'd just store all the comments in the same entity as the blog post. But here, there would be concerns about reaching the 1 ... |
async db access between requests on GAE/Python | 13,181,950 | 0 | 0 | 82 | 0 | python,google-app-engine,asynchronous,google-cloud-datastore | You cannot start an async API call in one request and get its result in another. The HTTP serving infrastructure will wait for all API calls started in a request to complete before the HTTP response is sent back; the data structure representing the async API call will be useless in the second request (even if it hits ... | 0 | 1 | 0 | 0 | 2012-10-31T13:25:00.000 | 1 | 0 | false | 13,159,051 | 0 | 0 | 1 | 1 | I'm trying to optimize my GAE webapp for latency.
The app has two requests which usually come one after another.
Is it safe to start an async db/memcache request during the first request and then use its results inside the following request?
(I'm aware that the second request might hit another instance. It would be han... |
How can i call robocopy within a python script to bulk copy multiple folders? | 26,222,233 | 4 | 1 | 16,661 | 0 | python,windows-7,command-line,copy,robocopy | Like halfs13 said use subprocess but you might need to format it like so
from subprocess import call
call(["robocopy",'fromdir', 'todir',"/S"])
Or else it may read the source as everything | 0 | 1 | 0 | 0 | 2012-10-31T15:41:00.000 | 5 | 0.158649 | false | 13,161,659 | 0 | 0 | 0 | 1 | I am trying to move multiple large folders (> 10 Gb , > 100 sub folders, > 2000 files ) between network drives. I have tried using shutil.copytree command in python which works fine except that it fails to copy a small percentage (< 1 % of files ) for different reasons.
I believe robocopy is the best option for me as ... |
Why use Tornado and Flask together? | 13,219,183 | 2 | 43 | 46,076 | 0 | python,web,webserver,flask,tornado | instead of using Apache as your server, you'll use Tornado (of course as blocking server due to the synchronous nature of WSGI). | 0 | 1 | 0 | 0 | 2012-10-31T17:59:00.000 | 4 | 0.099668 | false | 13,163,990 | 0 | 0 | 1 | 1 | As far as I can tell Tornado is a server and a framework in one. It seems to me that using Flask and Tornado together is like adding another abstraction layer (more overhead). Why do people use Flask and Tornado together, what are the advantages? |
Python to .bat conversion | 13,179,540 | 2 | 5 | 19,619 | 0 | python,windows,batch-file | No, I don't think you can reasonably expect to do this.
Batch files are executed by the Windows command interpreter, which is way way more primitive.
Python is a full-blown programming language with a rich and powerful library of standard modules for all sorts of tasks. All the Windows command interpreter can do is ac... | 0 | 1 | 0 | 0 | 2012-11-01T14:46:00.000 | 4 | 0.099668 | false | 13,179,515 | 1 | 0 | 0 | 1 | I would like a user on Windows to be able to run my Python program, so I want to convert it to a .bat file. Is there a way to convert it? I've tried searching, but didn't find anything. |
Python not running from cmd in Windows 8 after upgrade | 13,200,981 | 2 | 0 | 3,542 | 0 | python,windows,cmd | The reason why it works from the Menu Item but not from the command prompt is that the menu item specifies the "Start in" directory where the Python executable can be found.
Chances are the Win 7 -> Win 8 upgrade failed to preserve the PATH environmental variable, where the path the Python was previously specified, all... | 0 | 1 | 0 | 0 | 2012-11-02T18:17:00.000 | 3 | 0.132549 | false | 13,200,900 | 1 | 0 | 0 | 2 | I can run the command line version of Python but I cannot seem to run it from the command prompt. I have recently upgraded from Windows 7 to Windows 8 and it worked fine with Windows 7. Now Windows 8 will not recognize Python. Thanks, William |
Python not running from cmd in Windows 8 after upgrade | 15,230,805 | 0 | 0 | 3,542 | 0 | python,windows,cmd | Go to C:\python33 or wherever you installed it.
Right click on "pythonw" and pin to taskbar,
Run from taskbar. | 0 | 1 | 0 | 0 | 2012-11-02T18:17:00.000 | 3 | 0 | false | 13,200,900 | 1 | 0 | 0 | 2 | I can run the command line version of Python but I cannot seem to run it from the command prompt. I have recently upgraded from Windows 7 to Windows 8 and it worked fine with Windows 7. Now Windows 8 will not recognize Python. Thanks, William |
Google App Engine Update Issue | 13,236,236 | 1 | 0 | 937 | 0 | python,google-app-engine | After 3 days of endless searching, I have figured out the problem, if you are facing this issue, first thing you have to check is your system time, mine was incorrect due to daylight saving changes.
Thanks | 0 | 1 | 0 | 0 | 2012-11-03T05:53:00.000 | 2 | 1.2 | true | 13,206,438 | 0 | 0 | 1 | 1 | I am working on an application (python based), which is deployed on GAE, it was working fine till last day, but I can't seem to update any code on app engine since this morning, it is complaining about some sort of issue with password, I have double checked and email id and password are correct.
here is the stack trace... |
How small is *too small* for an opensource project? | 13,214,376 | 1 | 2 | 119 | 0 | python,open-source,driver,libraries | The smaller the better.
A 10 line function to convert HSV to RGB or find the closest point to a triangle or something like a CAN/GPIB driver is far more likely to be read and used than a massive complicated poorly documented framework | 0 | 1 | 0 | 0 | 2012-11-03T22:58:00.000 | 3 | 1.2 | true | 13,214,349 | 0 | 0 | 0 | 3 | I have a fair number of smaller projects / libraries that I have been using over the past 2 years. I am thinking about moving them to Google Code to make it easier to share with co-workers and easier to import them into new projects on my own environments. The are things like a simple FSMs, CAN (Controller Area Netwo... |
How small is *too small* for an opensource project? | 13,214,378 | 0 | 2 | 119 | 0 | python,open-source,driver,libraries | 500 lines? That's a lot in my opinion.
Sounds just fine to publish them as a project. I mean how many blog posts have you read with just some code that saved you hours?
Now imagine that but 500 lines of code and a permanent host designed for the purpose | 0 | 1 | 0 | 0 | 2012-11-03T22:58:00.000 | 3 | 0 | false | 13,214,349 | 0 | 0 | 0 | 3 | I have a fair number of smaller projects / libraries that I have been using over the past 2 years. I am thinking about moving them to Google Code to make it easier to share with co-workers and easier to import them into new projects on my own environments. The are things like a simple FSMs, CAN (Controller Area Netwo... |
How small is *too small* for an opensource project? | 13,214,412 | 1 | 2 | 119 | 0 | python,open-source,driver,libraries | Do not think about number of lines of code, think about utility of your code. If your code is useful for somebody, upload your code to a repository or repositories, write wiki, examples, etc. I saw a useful Python library that was less than 100 lines. | 0 | 1 | 0 | 0 | 2012-11-03T22:58:00.000 | 3 | 0.066568 | false | 13,214,349 | 0 | 0 | 0 | 3 | I have a fair number of smaller projects / libraries that I have been using over the past 2 years. I am thinking about moving them to Google Code to make it easier to share with co-workers and easier to import them into new projects on my own environments. The are things like a simple FSMs, CAN (Controller Area Netwo... |
Is there a way to atomically run a function as a transaction within google app engine when the function modifies more than five entity groups? | 13,228,117 | 0 | 1 | 66 | 0 | python,google-app-engine | XG transactions are limited to a few entity groups for performance reasons. Running an XG transaction across hundreds of entity groups would be incredibly slow.
Can you break your function up into many sub-functions, one for each entity group? If so, you should have no trouble running them individually, or on the task ... | 0 | 1 | 0 | 0 | 2012-11-05T03:25:00.000 | 2 | 0 | false | 13,225,540 | 0 | 0 | 1 | 1 | I'm developing on google app engine. The focus of this question is a python function that modifies hundreds of entity groups. The function takes one string argument. I want to execute this function as a transaction because there are instances right now when the same function with the same string argument are simulta... |
Run python script from CruiseControl.NET | 13,293,387 | 2 | 0 | 386 | 0 | python,cruisecontrol.net,nant | I don't think there is a built in python task, but you should be able to execute it by crafting an exec task. | 0 | 1 | 0 | 1 | 2012-11-05T08:50:00.000 | 1 | 1.2 | true | 13,228,677 | 0 | 0 | 0 | 1 | Is is posible to run a python script from Cruisecontrol.Net ? Is there a CCNEt task or a nant task that can be used? |
Why does calling get() on memcache increase item count in Google App Engine? | 13,389,191 | 1 | 4 | 195 | 0 | python,google-app-engine,memcached | memcache.get should not increase the item count in memcache statistic, and I'm not able to reproduce that behavior in production.
The memcache statistic page is global, so if you happen to have other requests (live, or through task queue) going to your application at the same time you're using the remote api, that coul... | 0 | 1 | 0 | 0 | 2012-11-05T14:26:00.000 | 1 | 0.197375 | false | 13,234,094 | 0 | 0 | 1 | 1 | I'm looking at the Memcache Viewer in my admin console on my deployed Google App Engine NDB app. For testing, I'm using the remote api. I'm doing something very simple: memcache.get('somekey'). For some reason, everytime I call this line and hit refresh on my statistics, the item count goes up by 2. This happens whethe... |
Python Argparse without command keyword | 13,238,122 | -1 | 0 | 813 | 0 | python,python-3.x,argparse | try looking into using sys.argv[] | 0 | 1 | 0 | 0 | 2012-11-05T18:16:00.000 | 2 | -0.099668 | false | 13,237,955 | 1 | 0 | 0 | 1 | So, what i am trying to do is LS Mimic in Python code.
I have completed most of the commands, but i have one thing that i cant find the solution
So, if the ls command gets this command line,
ls test1
It should find the test1 directory and then do the ls in that directory.
However, since I can only find ways of creating... |
Which GAE Database Property Fits a Tag Property? | 13,250,634 | 1 | 0 | 72 | 0 | python,google-app-engine,google-cloud-datastore | A repeated string property is your best option. | 0 | 1 | 0 | 0 | 2012-11-05T22:34:00.000 | 2 | 0.099668 | false | 13,241,503 | 0 | 0 | 1 | 1 | I want to have a property on a database model of mine in Google App Engine and I am not sure which category works the best. I need it to be a tag cloud similar to the Tags on SO. Would a text property be best or should I use a string property and make it repeated=True.
The second seems best to me and then I can just ... |
Python/Google Apps Script integration | 13,249,247 | 0 | 0 | 164 | 0 | python,google-apps-script | Yes. You would need to authorize it the first time and implement oAuth from the script though. I strongly suggest that you switch to the Google Drive API. | 0 | 1 | 0 | 0 | 2012-11-06T10:34:00.000 | 1 | 0 | false | 13,249,147 | 0 | 0 | 0 | 1 | Would it be possible for some type of Python script to check services running on a linux box, and integrate with a google app script, so it would then populate a google doc spreadsheet stating whther a service is running or not ? |
what does the cursor() method of GAE Query class return if the last result was already retrieved? | 13,252,901 | 3 | 2 | 119 | 0 | python,google-app-engine | There's still a cursor, even if the last result is retrieved. The query class doesn't know that, in any case: it knows what you've had already, but it doesn't know what else is still to come. The cursor doesn't represent any actual result, it's simply a way of resuming the query later. In fact, it's possible to use a c... | 0 | 1 | 0 | 0 | 2012-11-06T14:03:00.000 | 2 | 0.291313 | false | 13,252,683 | 0 | 0 | 1 | 1 | From the Google App Engine documentation:
"cursor() returns a base64-encoded cursor string denoting the position in the query's result set following the last result retrieved."
What does it return if the the last result retrieved IS the last result in the query set? Wouldn't this mean that there is no position that can... |
Using VIM for Python IDE in Windows? | 19,894,858 | 0 | 1 | 4,165 | 0 | python,django,windows,vim,ide | One possible compromise is to use your favorite IDE with a vim emulator plugin. For example, in Eclipse you can use Vrapper, PyCharm has IdeaVim and so forth. Lighttable also has vim key-bindings. The plug-ins (or key-binding options) give you some of the benefits of editing in Vim while still having the powerful debug... | 0 | 1 | 0 | 0 | 2012-11-06T14:50:00.000 | 5 | 0 | false | 13,253,510 | 1 | 0 | 0 | 1 | I am turning to Python from .NET world. And Visual Studio was something a great tool i used.
In python world we do have basic IDLE and another one is VIM. I have seen that a lot of developers have configured VIM to a great IDE. Using basic VIM in Windows 7 seems of less use.
So i want to moderate my VIM to a level whic... |
Python deployment for distributed application | 13,296,458 | 2 | 4 | 821 | 0 | python,web-applications,deployment | It all depends on your application.
You can:
use Puppet to deploy servers,
use Fabric to remotely connect to the servers and execute specific tasks,
use pip for distributing Python modules (even non-public ones) and install dependencies,
use other tools for specific tasks (such as use boto to work with Amazon Web Serv... | 0 | 1 | 0 | 0 | 2012-11-08T19:29:00.000 | 1 | 1.2 | true | 13,296,320 | 0 | 0 | 0 | 1 | We are developing a distributed application in Python. Right now, we are about to re-organize some of our system components and deploy them on separate servers, so I'm looking to understand more about deployment for an application such as this. We will have several back-end code servers, several database servers (of ... |
Apache/PHP to Nginx/Tornado/Python | 13,304,821 | 6 | 5 | 2,544 | 0 | php,python,django,nginx,tornado | I'll go point by point:
Yes. It's ok to run tornado and nginx on one server. You can use nginx as reverse proxy for tornado also.
Haproxy will give you benefit, if you have more than one server instances. Also it will allow you to proxy websockets directly to tornado.
Actually, nginx can be used for redirects, with ... | 0 | 1 | 0 | 1 | 2012-11-08T22:31:00.000 | 1 | 1.2 | true | 13,299,023 | 0 | 0 | 1 | 1 | Our website has developed a need for real-time updates, and we are considering various comet/long-polling solutions. After researching, we have settled on nginx as a reverse proxy to 4 tornado instances (hosted on Amazon EC2). We are currently using the traditional LAMP stack and have written a substantial amount of ... |
python-twisted and SIGKILL | 13,306,625 | 4 | 5 | 574 | 0 | python,linux,twisted,sigkill | From the signal(2) man page:
The signals SIGKILL and SIGSTOP cannot be caught or ignored.
So there is no way the process can run any cleanup code in response to that signal. Usually you only use SIGKILL to terminate a process that doesn't exit in response to SIGTERM (which can be caught). | 0 | 1 | 0 | 0 | 2012-11-09T10:32:00.000 | 2 | 0.379949 | false | 13,306,359 | 0 | 0 | 0 | 2 | I have a python application that uses twisted framework.
I make use of value stored in the pidfile generated by twistd. A launcher script checks for it's presence and will not spawn a daemon process if the pidfile already exists.
However, twistd does not remove the .pidfile when it gets SIGKILL signal. That makes the l... |
python-twisted and SIGKILL | 13,310,880 | 0 | 5 | 574 | 0 | python,linux,twisted,sigkill | You could change your launcher (or wrap it up in another launcher) and remove the pid file before trying to restart twistd. | 0 | 1 | 0 | 0 | 2012-11-09T10:32:00.000 | 2 | 0 | false | 13,306,359 | 0 | 0 | 0 | 2 | I have a python application that uses twisted framework.
I make use of value stored in the pidfile generated by twistd. A launcher script checks for it's presence and will not spawn a daemon process if the pidfile already exists.
However, twistd does not remove the .pidfile when it gets SIGKILL signal. That makes the l... |
code analysis incomplete for filename with a dash | 13,312,787 | 2 | 3 | 566 | 0 | python,eclipse,pydev | Python does not allow dashes in identifiers. Module names need to be valid identifiers, so any module file or package directory name with a dash in it is not importable.
On the other hand, script files (python files executed directly by Python, not imported) have no such restrictions. I'd say what you encountered is a ... | 0 | 1 | 0 | 0 | 2012-11-09T17:01:00.000 | 1 | 0.379949 | false | 13,312,588 | 1 | 0 | 0 | 1 | I had this problem for a while, and finally understanding what caused it was a good relief.
So basically, python files with a dash ('-') in their name are not fully analyzed by PyDev. I only get the errors but not the warnings... (ie: unused variables, unused imports etc...)
Is this a feature? a known bug? Is there an... |
Appengine Search API - Globally Consistent | 13,315,587 | 0 | 0 | 174 | 0 | python,google-app-engine,full-text-search,gae-search | This depends on whether or not you have any globally consistent indexes. If you do, then you should migrate all of your data from those indexes to new, per-document-consistent (which is the default) indexes. To do this:
Loop through the documents you have stored in the global index and reindexing them in the new index... | 0 | 1 | 0 | 0 | 2012-11-09T17:37:00.000 | 1 | 0 | false | 13,313,118 | 0 | 0 | 1 | 1 | I've been using the appengine python experimental searchAPI. It works great. With release 1.7.3 I updated all of the deprecated methods. However, I am now getting this warning:
DeprecationWarning: consistency is deprecated. GLOBALLY_CONSIST
However, I'm not sure how to address it in my code. Can anyone point me in the ... |
How to use `subprocess` command with pipes | 13,359,172 | 4 | 326 | 305,963 | 0 | python,linux,subprocess,pipe | Also, try to use 'pgrep' command instead of 'ps -A | grep 'process_name' | 0 | 1 | 0 | 0 | 2012-11-11T14:55:00.000 | 9 | 0.088656 | false | 13,332,268 | 0 | 0 | 0 | 1 | I want to use subprocess.check_output() with ps -A | grep 'process_name'.
I tried various solutions but so far nothing worked. Can someone guide me how to do it? |
Setting python3.2 as default instead of python2.7 on Mac OSX Lion 10.7.5 | 53,291,437 | 3 | 8 | 16,097 | 0 | python,macos | If you have python 2 and 3 on brew. Following worked for me.
brew unlink python@2
brew link python@3 (if not yet linked) | 0 | 1 | 0 | 0 | 2012-11-12T00:04:00.000 | 3 | 0.197375 | false | 13,336,852 | 1 | 0 | 0 | 2 | Currently running Mac OS X Lion 10.7.5 , and it has python2.7 as default. In the terminal, i type 'python' and it automatically pulls up python2.7. I don't want that.
from terminal I have to instead type 'python3.2' if i want to use python3.2.
How do i change that? |
Setting python3.2 as default instead of python2.7 on Mac OSX Lion 10.7.5 | 13,336,983 | 4 | 8 | 16,097 | 0 | python,macos | You could edit the default python path and point it to python3.2
Open up ~/.bash_profile in an editor and edit it so it looks like
PATH="/Library/Frameworks/Python.framework/Versions/3.2/bin:${PATH}"
export PATH | 0 | 1 | 0 | 0 | 2012-11-12T00:04:00.000 | 3 | 0.26052 | false | 13,336,852 | 1 | 0 | 0 | 2 | Currently running Mac OS X Lion 10.7.5 , and it has python2.7 as default. In the terminal, i type 'python' and it automatically pulls up python2.7. I don't want that.
from terminal I have to instead type 'python3.2' if i want to use python3.2.
How do i change that? |
Python fabric.api backslash hell | 13,338,597 | 4 | 7 | 676 | 0 | python,fabric,backslash | OK, finally worked this out. RocketDonkey was correct. Needed to prefix with "r" but also needed to set "shell=False". This allowed what ever worked directly in the bash terminal to work when being called from fabric.api.
Thanks RocketDonkey!! | 0 | 1 | 0 | 0 | 2012-11-12T03:06:00.000 | 2 | 0.379949 | false | 13,337,870 | 0 | 0 | 0 | 1 | I'm new to python and fabric api. I'm trying to use the sudo functionality to run a sed command in bash terminal which insert some text after a particular line of text is found. Some of the text I'm trying to insert into the file I'm modifying contains backslashes which seem to either be ignored by fabric or cause synt... |
Python usbmount checking for device before writing | 13,345,336 | 1 | 1 | 905 | 0 | python,usb,debian | cat /etc/mtab | awk '{ print $2 }'
Will give you a list of mountpoints. You can as well read /etc/mtab yourself and just check if anything's mounted under /media/usb0 (file format: whitespace-divided, most likely single space). The second column is mount destination, the first is the source. | 0 | 1 | 0 | 1 | 2012-11-12T14:11:00.000 | 2 | 1.2 | true | 13,345,239 | 0 | 0 | 0 | 1 | I'm using debian with usbmount. I want to check if a USB memory stick is available to write to.
Currently I check if a specific dir exists on the USB drive. If this is True I can then write the rest of my files - os.path.isdir('/media/usb0/Test_Folder')
I would like to create Test_Folder if it doesn't exist. However ... |
Installing Python modules for OpenERP 6.1 in Windows | 13,358,175 | 1 | 6 | 3,249 | 0 | python,openerp | Good question..
Openerp on windows uses a dll for python (python26.dll in /Server/server of the openerp folder in program files). It looks like all the extra libraries are in the same folder, so you should be able to download the extra libraries to that folder and restart the service. (I usually stop the service and ru... | 0 | 1 | 0 | 0 | 2012-11-12T15:38:00.000 | 2 | 0.099668 | false | 13,346,698 | 0 | 0 | 1 | 1 | I installed OpenERP 6.1 on windows using the AllInOne package. I did NOT install Python separately. Apparently OpenERP folders already contain the required python executables.
Now when I try to install certain addons, I usually come across requirements to install certain python modules. E.g. to install Jasper_Server, I... |
How to FTP into a virtual machine? | 13,353,762 | 1 | 0 | 5,276 | 0 | python,django,ftp,virtualenv,virtualbox | The reason that the the client reported back "Connection refused by server" is that the server returned a TCP packet with the reset bit set, in response to an application trying to connect to a port that is not being listened on by an application, or by a firewall.
I think that the FTP service is not running, or runn... | 0 | 1 | 0 | 0 | 2012-11-12T23:08:00.000 | 1 | 1.2 | true | 13,353,113 | 0 | 0 | 1 | 1 | I've recently started learning Django and have set up a virtual machine running a Django server on VirtualEnv. I can use the runserver command to run the basic Django installation server and view it on another computer with the local IP address.
However, I can't figure out how to connect to my virtual machine with my F... |
Creating a debian package for my python application from a system running fedora | 13,425,528 | 1 | 1 | 110 | 0 | python,debian,fedora | Create an rpm package, give it to your Debian users and tell them to convert the rpm to a Debian package using alien on their Debian box. | 0 | 1 | 0 | 0 | 2012-11-13T00:37:00.000 | 2 | 0.099668 | false | 13,353,978 | 1 | 0 | 0 | 1 | I have created a small python application to be used internally in my organization. I wrote the code on my primary development machine running Fedora 17 and I would like to create a .deb in order to make it easy for my colleagues to install my program.
Is it possible to create debian packages for python application fro... |
what is the difference between "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/" and "/Library/Python/2.7/" | 16,665,606 | 8 | 4 | 2,452 | 0 | python-2.7 | python.org
The installer from python.org installs to /Library/Frameworks/Python.framework/, and only that python executable looks in the contained site-package dir for packages.
/Library/Python
In contrast, the dir /Library/Python/2.7/site-packages/ is a global place where you can put python packages, all python 2.7 in... | 0 | 1 | 0 | 0 | 2012-11-13T03:55:00.000 | 1 | 1 | false | 13,355,370 | 1 | 0 | 0 | 1 | I am working on a mac, a quick question, could someone told me the difference of these two directories?
/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/
/Library/Python/2.7/site-packages/ |
Running Python from PHP | 13,356,068 | 0 | 0 | 189 | 0 | php,python,caching,egg | Make sure whatever user php is running under has appropriate permissions. You can try opening a pipe and changing users, or just use apache's suexec. | 0 | 1 | 0 | 1 | 2012-11-13T05:33:00.000 | 1 | 0 | false | 13,356,024 | 0 | 0 | 0 | 1 | I have a python script that runs as a daemon process. I want to be able to stop and start the process via a web page. I made a PHP script that runs exec() on the python daemon. Any idea?
Traceback (most recent call last): File
"/home/app/public_html/daemon/daemon.py", line 6, in from
socketServer import Ex... |
Asynchronous replacement for Celery | 13,429,864 | 1 | 4 | 1,476 | 0 | python,django,asynchronous,celery,gevent | Have you tried to use Celery + eventlet? It works well in our project | 0 | 1 | 0 | 0 | 2012-11-13T11:42:00.000 | 2 | 0.099668 | false | 13,360,145 | 0 | 0 | 1 | 1 | We're using Celery for background tasks in our Django project.
Unfortunately, we have many blocking sockets in tasks, that can be established for a long time. So Celery becomes fully loaded and does not respond.
Gevent can help me with sockets, but Celery has only experimental support of gevent (and as I found in prac... |
Live output from a batch file with Python | 13,370,997 | 1 | 1 | 148 | 0 | python,batch-file,python-3.x | Can't you just use os.system? | 0 | 1 | 0 | 0 | 2012-11-13T23:48:00.000 | 1 | 0.197375 | false | 13,370,877 | 1 | 0 | 0 | 1 | I'm trying to get the output from a batch file LIVE as it runs. I would prefer the console of the batch file to also show as it runs. I have tried using os.popen and subprocess.Popen but the problem is that it does not run the program LIVE in the background and constantly show what is being printed to the console.
Exac... |
Python : Check file is locked | 13,371,542 | 7 | 14 | 23,396 | 0 | python,file-io | You can use os.access for checking your access permission. If access permissions are good, then it has to be the second case. | 0 | 1 | 0 | 0 | 2012-11-14T00:48:00.000 | 3 | 1.2 | true | 13,371,444 | 1 | 0 | 0 | 1 | My goal is to know if a file is locked by another process or not, even if I don't have access to that file!
So to be more clear, let's say I'm opening the file using python's built-in open() with 'wb' switch (for writing). open() will throw IOError with errno 13 (EACCES) if:
the user does not have permission to the f... |
Convert an EXE and its dependencies into one stand-alone EXE | 13,967,222 | 0 | 3 | 2,963 | 0 | python,compilation,exe,cx-freeze | Have you tried innosetup? It can create installer files from the output of cxfreeze. There might be an option somewhere to bundle everything into one file. | 0 | 1 | 0 | 0 | 2012-11-15T00:22:00.000 | 3 | 0 | false | 13,389,724 | 1 | 0 | 0 | 1 | I'm using cx_Freeze to compile Python programs into executables and it works just fine, but the problem is that it doesn't compile the program into one EXE, it converts them into a .exe file AND a whole bunch of .dll files including python32.dll that are necessary for the program to run.
Does anyone know how I can pack... |
how to switch the action of execution of script between the terminals in the python script? | 13,391,941 | 0 | 2 | 101 | 0 | python,unix,vi | Have your script myscript.py take an optional argument e.g. other_term. Spawn xterm -e myscript.py other_term. When the second instance of myscript.py starts, check for the optional argument other_term; if present, perform the second set of commands. Use environment variables or files or command line arguments or pi... | 0 | 1 | 0 | 0 | 2012-11-15T05:15:00.000 | 1 | 0 | false | 13,391,901 | 0 | 0 | 0 | 1 | I want to run a script that contains some commands to execute for eg: pwd, xterm home, date, time Here i want to run the script which executes pwd in first terminal, and creates a xterm home then in xterm home terminal i want to run date and time command then i want to run once again pwd in main terminal.
"How to switc... |
System process listener in python | 13,399,024 | 0 | 0 | 524 | 0 | python | You can launch ps command, parse its output and get info about running processes. I haven't found better way still. If you're on unix of cause. | 0 | 1 | 0 | 0 | 2012-11-15T13:12:00.000 | 2 | 0 | false | 13,398,191 | 0 | 0 | 0 | 1 | Is there any way to notify when the system process started, terminated or completed.
I am searching kind of listener that listen events of the system, such as process start, stop etc. |
Python redirect stdin | 13,405,792 | 1 | 1 | 1,168 | 0 | python,usb,barcode,stdin | The normal way of intercepting standard input in Unix is pipes and multiple processes. If you have a multi-process application, then one process can receive the "raw" standard input, capture barcode input, and pass on the rest to its standard output. That output would then be the standard input of your UI process whi... | 0 | 1 | 0 | 0 | 2012-11-15T20:05:00.000 | 1 | 1.2 | true | 13,405,277 | 0 | 0 | 0 | 1 | I'm trying to set up a barcode scanner object that will capture anything input from the scanner itself. The barcode scanner is recognized as a standard input (stdin) and therefore whenever I scan a barcode, I get standard input text. There will also be a keyboard attached to the system, which is another standard input.... |
ZeroMQ 2nd connection fail with einval | 13,487,196 | 0 | 0 | 411 | 0 | python,c,zeromq,pyzmq | It's not a race condition in zmq, and not a problem with zmq_connect. That extra 0x01 byte is presumably at fault. If you are passing that to zmq_connect, what result do you expect except EINVAL?
So where does that extra byte come from? Do you get it on all messages sent between two peers? What are you doing different... | 0 | 1 | 0 | 0 | 2012-11-17T00:25:00.000 | 1 | 0 | false | 13,426,374 | 0 | 0 | 0 | 1 | I got a C-ZMQ client that receiving two random ports (from pyzmq server) and then connecting to them.
Usually, everything is working, but sometimes the 2nd connect fail with errno set to EINVAL. (Even when I switched between the connect calls the 2nd still failed).
The port number is fine and it looks like some kind of... |
Pass data in google app engine using POST | 13,427,499 | 1 | 1 | 297 | 0 | python,google-app-engine,http-post,http-get | Links inherently generate GET requests. If you want to generate a POST request, you'd need to either:
Use a form with method="POST" and submit it, or
Use AJAX to load the new page. | 0 | 1 | 0 | 0 | 2012-11-17T03:45:00.000 | 1 | 1.2 | true | 13,427,477 | 0 | 0 | 1 | 1 | I'm trying to pass a variable from one page to another using google app engine, I know how to pass it using GET put putting it in the URL. But I would like to keep the URL clean, and I might need to pass a larger amount of data, so how can pass info using post.
To illustrate, I have a page with a series of links, each... |
Streaming audio and video | 13,435,380 | 5 | 2 | 1,745 | 0 | python,linux,streaming,video-streaming,audio-streaming | A good start for trying different options is to use vlc (http://www.videolan.org) Its file->transmit menu command opens a wizard with which you can play.
Another good one is gstreamer, (http://www.gstreamer.net), the gst-launch program in particular, which allows you to build pipelines from the command line. | 0 | 1 | 0 | 0 | 2012-11-17T18:42:00.000 | 2 | 1.2 | true | 13,433,597 | 0 | 0 | 1 | 1 | I've been trying for a while but struggling. I have two projects:
Stream audio to server for distribution over the web
Stream audio and video from a webcam to a server for distribution over the web.
I have thus far tried ffmpeg and ffserver, PulseAudio, mjpegstreamer (I got this working but no audio) and IceCast all... |
How to elegantly compare zip folder contents to unzipped folder contents | 13,451,351 | 1 | 7 | 5,546 | 0 | python,zip,backup,unzip | Rsync will automatically detect and only copy modified files, but seeing as you want to bzip the results, you still need to detect if anything has changed.
How about you output the directory listing (including time stamps) to a text file alongside your archive. The next time you diff the current directory structure aga... | 0 | 1 | 0 | 1 | 2012-11-19T09:48:00.000 | 4 | 0.049958 | false | 13,451,235 | 0 | 0 | 0 | 1 | This is the scenario. I want to be able to backup the contents of a folder using a python script. However, I want my backups to be stored in a zipped format, possibly bz2.
The problem comes from the fact that I don’t want to bother backing up the folder if the contents in the “current” folder are exactly the same as wh... |
re-arrange pythonpath in pydev-eclipse? | 14,926,237 | 1 | 3 | 464 | 0 | python,eclipse,pydev | if you are using setuptools, you can try running sudo python setup.py develop on the egg as well as adding project dependencies between the two in Eclipse | 0 | 1 | 0 | 1 | 2012-11-19T18:13:00.000 | 1 | 0.197375 | false | 13,459,647 | 1 | 0 | 0 | 1 | I'm using pydev in eclipse.
I was hoping that pydev would first use the python classes I develop in my source dir. but since I also install the built egg into system dir, pydev also picks up the classes from system dir.
the problem is that pydev uses system dir first in its python path. so after I installed a buggy ver... |
python library access in ubuntu 12.04 | 13,464,518 | 2 | 0 | 409 | 0 | python,installation,ubuntu-12.04 | As an absolute beginner, don't worry right now about where to install libraries. Simple example scripts that you're trying out for learning purposes don't belong being installed in any lib directory such as under /usr/lib/python.'
On Linux you want to do most work in your home directory, so just cd ~ to make sure you'... | 0 | 1 | 0 | 1 | 2012-11-19T23:46:00.000 | 1 | 1.2 | true | 13,464,456 | 0 | 0 | 0 | 1 | I am learning python from learnpythonthehardway. in the windows I had no issues with going through a lots of exercises because the setup was easier but I want to learn linux as well and ubuntu seemed to me the nicest choice.
now I am having trouble with setting up. I can get access to the terminal and then usr/lib/pyt... |
Running Python in CMD not working | 13,482,036 | 0 | 2 | 7,684 | 0 | python,windows-8,cmd,environment-variables | Unless the project's folder is in the PATH, you cannot call the file unless you are inside the project's folder. Don't create PATHs for projects, unless they are needed; it's unnecessary.
Just transverse to the file's directory and run the command inside the directory. That will work.
If the project will b... | 0 | 1 | 0 | 0 | 2012-11-20T20:50:00.000 | 3 | 0 | false | 13,481,893 | 1 | 0 | 0 | 1 | I am a Python beginner and I am having trouble running Python from CMD. I have added the Python installation directory as a PATH variable (;C:\Python27). I am able to run the Python Interpreter from CMD, however when I issue a command like "python file.py command" from CMD, it returns "Error2, Python can't open, no suc... |
"No user interaction allowed" When running AppleScript in python | 53,218,057 | 0 | 5 | 5,247 | 0 | python,applescript | My issue was an app with LSBackgroundOnly = YES set attempting to run an AppleScript that displays UI, such as display dialog ...
Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"
AppleScript.scpt: execution error: No user interaction allowed. (-1713)
Using tell application "Finder" ... or etc. works... | 0 | 1 | 0 | 0 | 2012-11-21T00:23:00.000 | 2 | 0 | false | 13,484,482 | 0 | 0 | 0 | 1 | I have the applescript which will displays menu list and allow user to select menu items etc.
It runs fine by itself. And now I try to run it in python. I get the No user interaction allowed. (-1713) error.
I looked online. I tried the following:
add on run function in the same applescript, so what i did is just a... |
When should I use `wait` instead of `communicate` in subprocess? | 13,849,245 | 7 | 16 | 6,735 | 0 | python,subprocess,pipe,wait,communicate | I suspect (the docs don't explicitly state it as of 2.6) in the case where you don't use PIPEs communicate() is reduced to wait(). So if you don't use PIPEs it should be OK to replace wait().
In the case where you do use PIPEs you can overflow memory buffer (see communicate() note) just as you can fill up OS pipe buffe... | 0 | 1 | 0 | 0 | 2012-11-23T02:53:00.000 | 1 | 1.2 | true | 13,522,556 | 1 | 0 | 0 | 1 | In the document of wait (http://docs.python.org/2/library/subprocess.html#subprocess.Popen.wait), it says:
Warning
This will deadlock when using stdout=PIPE and/or stderr=PIPE and the
child process generates enough output to a pipe such that it blocks
waiting for the OS pipe buffer to accept more data. Use communi... |
Script to Shutdown Ubuntu | 13,534,648 | 0 | 2 | 4,767 | 0 | python,linux,bash,ubuntu,sh | You can call poweroff from a script, as long as it's running with superuser privileges. | 0 | 1 | 0 | 1 | 2012-11-23T19:01:00.000 | 6 | 0 | false | 13,534,541 | 0 | 0 | 0 | 1 | I want to write a script which can Shutdown remote Ubuntu system. Actually i want my VM to shutdown safely when i shutdown my main machine on which my VM is installed .
Is there is any of doing this with the help of Sh scripts or script written in any language like Python. |
New tables created in web2py not seen when running in Google app Engine | 13,551,914 | 0 | 1 | 100 | 1 | python,google-app-engine,web2py | App Engine datastore doesn't really have tables. That said, if web2py is able to make use of the datastore (I'm not familiar with it), then Kinds (a bit like tables) will only show up in the admin-console (/_ah/admin locally) once an entity has been created (i.e. tables only show up once one row has been inserted, you'... | 0 | 1 | 0 | 0 | 2012-11-25T05:29:00.000 | 1 | 0 | false | 13,548,590 | 0 | 0 | 1 | 1 | I have created an app using web2py and have declared certain new table in it using the syntax
db.define_table() but the tables created are not visible when I run the app in Google App Engine even on my local server. The tables that web2py creates by itself like auth_user and others in auth are available.
What am I miss... |
Force python module to be installed in certain directory | 13,555,251 | 0 | 1 | 70 | 0 | python,module,installation | Install the module:
sudo pip-2.7 install guess_language
Validate import and functionality:
> Python2.7
>>> import guess_language
>>> print guess_language.guessLanguage(u"שלום לכם")
he | 0 | 1 | 0 | 1 | 2012-11-25T18:49:00.000 | 2 | 0 | false | 13,554,241 | 1 | 0 | 0 | 1 | Is there any way to force python module to be installed in the following directory? /usr/lib/python2.7 |
How to open ppt file using Python | 13,568,384 | 0 | 3 | 14,562 | 0 | python | Using catdoc/catppt with subprocess to open doc files and ppt files. | 0 | 1 | 0 | 1 | 2012-11-26T05:28:00.000 | 5 | 0 | false | 13,559,133 | 0 | 0 | 0 | 1 | I want to open a ppt file using Python on linux, (like python open a .txt file).
I know win32com, but I am working on linux.
So, What do I need to do? |
Build command in sublime text has stopped functioning | 20,480,227 | 0 | 2 | 182 | 0 | python,sublimetext2 | Yes, you might want to give more detail. Have you made sure you have saved the file as .py? Try something simple like Print "Hello" and then see if this works. | 0 | 1 | 0 | 1 | 2012-11-26T19:47:00.000 | 1 | 1.2 | true | 13,571,993 | 0 | 0 | 0 | 1 | I am a new user of Sublime text.
It has been working fine for a few days until it began to refuse to compile anything and I don't know where the problem is. I wrote python programs and pressed cmd+b and nothing happened. When I try to launch repl for this file - that also doesn't work. I haven't installed any plugins... |
Changing default directories for python and ruby | 13,577,108 | 1 | 1 | 60 | 0 | python,ruby,terminal | Seems like you ought to just modify your $PATH to include /usr/local/Cellar before /usr/local/bin. Your shell will use the first one it finds. | 0 | 1 | 0 | 0 | 2012-11-27T03:20:00.000 | 2 | 0.099668 | false | 13,576,887 | 0 | 0 | 0 | 2 | Hey :) I'm working on a Mac with Mountain Lion, and installed both Ruby 1.9.3 and Python 2.7.3 from homebrew. However, which python and which ruby return that they are in /usr/local/bin/__, respectively. I would like them to read from /usr/local/Cellar/python or /usr/local/Cellar/ruby. How do I change their paths? |
Changing default directories for python and ruby | 13,577,066 | 0 | 1 | 60 | 0 | python,ruby,terminal | I don't know on mac but on linux they're set up as links to /usr/local/bin/*
If you wanted to change the symbolic link you could run the command
ln -s /user/local/Celler/python /usr/local/bin/python which would make a new symbolic link.
Whether this works on OSX I can't confirm though.
Another method you might want to ... | 0 | 1 | 0 | 0 | 2012-11-27T03:20:00.000 | 2 | 0 | false | 13,576,887 | 0 | 0 | 0 | 2 | Hey :) I'm working on a Mac with Mountain Lion, and installed both Ruby 1.9.3 and Python 2.7.3 from homebrew. However, which python and which ruby return that they are in /usr/local/bin/__, respectively. I would like them to read from /usr/local/Cellar/python or /usr/local/Cellar/ruby. How do I change their paths? |
Subprocess in Reading Serial Port Read | 13,585,552 | 1 | 2 | 2,531 | 0 | python,multiprocessing | use a pipe.
Ceate two processes using the subprocess module, the first reads from the serial port and writes the set of hex codes to stdout. This is piped to the second process which reads from stdin and updates the database. | 0 | 1 | 0 | 0 | 2012-11-27T13:25:00.000 | 2 | 0.099668 | false | 13,585,238 | 0 | 0 | 0 | 1 | Hi I am using Serial port communication to one of my device using python codes. It is sending a set of Hex code, Receives a set of data. process it.
This data has to be stored in to a database.
I have another script that has MYSQLdb library pushing it in to the database.
If I do that in sequentially in one script i los... |
Invoking python under CygWin on Windows hangs | 13,588,963 | 43 | 40 | 23,262 | 0 | python,cygwin | The problem is that due to the way that the Cygwin terminal (MinTTY) behaves, the native Windows build of Python doesn't realize that stdout is a terminal device -- it thinks it's a pipe, so it runs in non-interactive mode instead of interactive mode, and it fully buffers its output instead of line-buffering it.
The re... | 0 | 1 | 0 | 0 | 2012-11-27T16:17:00.000 | 8 | 1.2 | true | 13,588,454 | 1 | 0 | 0 | 2 | Installing a new Windows system, I've installed CygWin and 64
bit Python (2.7.3) in their default locations (c:\cygwin and
c:\Python27\python), and added both the CygWin bin and the
Python directory to my path (in the user variable PATH). From
the normal command window, Python starts up perfectly, but when
I invoke it... |
Invoking python under CygWin on Windows hangs | 48,180,292 | -1 | 40 | 23,262 | 0 | python,cygwin | Reinstall mintty with cygwin setup. Didn't have to use python -i after that. | 0 | 1 | 0 | 0 | 2012-11-27T16:17:00.000 | 8 | -0.024995 | false | 13,588,454 | 1 | 0 | 0 | 2 | Installing a new Windows system, I've installed CygWin and 64
bit Python (2.7.3) in their default locations (c:\cygwin and
c:\Python27\python), and added both the CygWin bin and the
Python directory to my path (in the user variable PATH). From
the normal command window, Python starts up perfectly, but when
I invoke it... |
C++ Python Module not being linked into Python with g++ | 13,590,180 | 0 | 0 | 85 | 0 | python,linux,gcc,g++,python-2.6 | I was able to solve my problem by manually editing the Makefile generated by the configure script so that the linker was using g++ instead of gcc and that solved my problems. Thanks for the possible suggestions! | 0 | 1 | 0 | 1 | 2012-11-27T16:50:00.000 | 1 | 1.2 | true | 13,589,075 | 1 | 0 | 0 | 1 | I have a custom C++ Python Module that I want to build into Python that builds fine but fails when it goes to the linking stage. I have determined that the problem is that it is using the gcc to link and not g++ and this is what is causing all of the errors I am seeing when it tries to link in the std libraries. How wo... |
How to distribute and deploy Python 3 code with dependency isolation | 13,671,961 | 0 | 5 | 1,205 | 0 | python,deployment,python-3.2 | Have you looked at buildout (zc.buildout)? With a custom recipe you may be able to automate most of this. | 0 | 1 | 0 | 0 | 2012-11-27T21:40:00.000 | 2 | 0 | false | 13,593,594 | 1 | 0 | 0 | 1 | I'm not happy with the way that I currently deploy Python code and I was wondering if there is a better way. First I'll explain what I'm doing, then the drawbacks:
When I develop, I use virtualenv to do dependancy isolation and install all libraries using pip. Python itself comes from my OS (Ubuntu)
Then I build my ... |
Python command not working in command prompt | 29,402,992 | 5 | 116 | 713,166 | 0 | python,windows,windows-8,command | I am probably the most novice user here, I have spent six hours just to run python in the command line in Windows 8. Once I installed the 64-bit version, then I uninstalled it and replaced it with 32-bit version. Then, I tried most suggestions here, especially by defining path in the system variables, but still it didn... | 0 | 1 | 0 | 0 | 2012-11-28T01:53:00.000 | 23 | 0.043451 | false | 13,596,505 | 1 | 0 | 0 | 11 | When I type python into the command line, the command prompt says python is not recognized as an internal or external command, operable program, or batch file. What should I do?
Note: I have Python 2.7 and Python 3.2 installed on my computer. |
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