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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Strengths of Shell Scripting compared to Python | 796,344 | 17 | 109 | 63,953 | 0 | python,shell | There's nothing you can do with shell scripts that you can't do with python.
The big advantage of shell scripts is that you use the same commands as you do when you use the shell, so if you're a heavy shell user, shell scripting will at some point become a very quick and easy way to automate your shell work.
I also fi... | 0 | 1 | 0 | 1 | 2009-04-28T05:16:00.000 | 8 | 1 | false | 796,319 | 0 | 0 | 0 | 8 | I tried to learn shell(bash) scripting few times but was driven away by the syntax. Then I found Python and was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
What are strengths of shell scripting th... |
Strengths of Shell Scripting compared to Python | 4,980,553 | 9 | 109 | 63,953 | 0 | python,shell | I agree with most of the previous answers. I consider shell commands most suited to do filesystem-oriented tasks (copy and move files, grep, etc). Shell is better, in my opinion, if you have to read and write to file, since a single >>file.txt redirection appends to file instantly, instead of needing, say, file=open('f... | 0 | 1 | 0 | 1 | 2009-04-28T05:16:00.000 | 8 | 1 | false | 796,319 | 0 | 0 | 0 | 8 | I tried to learn shell(bash) scripting few times but was driven away by the syntax. Then I found Python and was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
What are strengths of shell scripting th... |
Strengths of Shell Scripting compared to Python | 9,188,834 | 5 | 109 | 63,953 | 0 | python,shell | Another thing to consider when choosing shell scripts of Python is the Python version that will be running on the target machines. RHEL5 (to name one) is going to be around for a long time. RHEL5 is stuck with Python 2.4. There are a lot of nice libraries that depend on functionality added to Python post-2.4. | 0 | 1 | 0 | 1 | 2009-04-28T05:16:00.000 | 8 | 0.124353 | false | 796,319 | 0 | 0 | 0 | 8 | I tried to learn shell(bash) scripting few times but was driven away by the syntax. Then I found Python and was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
What are strengths of shell scripting th... |
Strengths of Shell Scripting compared to Python | 814,425 | 36 | 109 | 63,953 | 0 | python,shell | The shell makes common and simple actions really simple, at the expense of making more complex things much much more complex.
Typically, a small shell script will be shorter and simpler than the corresponding python program, but the python program will tend to gracefully accept modifications, whereas the shell script w... | 0 | 1 | 0 | 1 | 2009-04-28T05:16:00.000 | 8 | 1 | false | 796,319 | 0 | 0 | 0 | 8 | I tried to learn shell(bash) scripting few times but was driven away by the syntax. Then I found Python and was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
What are strengths of shell scripting th... |
Strengths of Shell Scripting compared to Python | 797,341 | 58 | 109 | 63,953 | 0 | python,shell | "What are strengths of shell scripting that make it an indispensable tool as compared to Python?"
The shell is not indispensable. Why do you think there are so many? bash, tcsh, csh, sh, etc., etc.,
Python is a shell. Not the one you'd use for running all commands, but for scripting, it's ideal.
Python is a more-or... | 0 | 1 | 0 | 1 | 2009-04-28T05:16:00.000 | 8 | 1 | false | 796,319 | 0 | 0 | 0 | 8 | I tried to learn shell(bash) scripting few times but was driven away by the syntax. Then I found Python and was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
What are strengths of shell scripting th... |
Strengths of Shell Scripting compared to Python | 796,348 | 7 | 109 | 63,953 | 0 | python,shell | The shell is available everywhere. If you stick to a relatively basic set of portable functionality, your scripts can run on cell phones, wireless routers, DVRs, netbooks, workstations, big iron servers, and the like. Python is not necessarily included out of the box on lots of systems, and depending on the environment... | 0 | 1 | 0 | 1 | 2009-04-28T05:16:00.000 | 8 | 1 | false | 796,319 | 0 | 0 | 0 | 8 | I tried to learn shell(bash) scripting few times but was driven away by the syntax. Then I found Python and was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
What are strengths of shell scripting th... |
Strengths of Shell Scripting compared to Python | 3,074,616 | 11 | 109 | 63,953 | 0 | python,shell | one doesn't have to learn shell scripting, as all the previous answers indicate; but learning is never a bad thing. it's really a question of personal priorities. it's very hard for someone else to tell you what is and isn't worth your time.
most programmers find that learning new languages gets incrementally easier ea... | 0 | 1 | 0 | 1 | 2009-04-28T05:16:00.000 | 8 | 1 | false | 796,319 | 0 | 0 | 0 | 8 | I tried to learn shell(bash) scripting few times but was driven away by the syntax. Then I found Python and was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
What are strengths of shell scripting th... |
Strengths of Shell Scripting compared to Python | 796,343 | 95 | 109 | 63,953 | 0 | python,shell | Shell scripting has simpler notations for I/O redirection.
It is simpler to create pipelines out of existing programs in shell.
Shell scripting reuses entire programs.
Shell is universally available (on anything like Unix) - Python is not necessarily installed.
'Tis true that you can do everything in Python that you c... | 0 | 1 | 0 | 1 | 2009-04-28T05:16:00.000 | 8 | 1.2 | true | 796,319 | 0 | 0 | 0 | 8 | I tried to learn shell(bash) scripting few times but was driven away by the syntax. Then I found Python and was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
What are strengths of shell scripting th... |
How to call a Perl script from Python, piping input to it? | 798,508 | 2 | 6 | 13,888 | 0 | python,perl,domainkeys,dkim | I'm sure there's a reason you're going down the route you've chosen, but why not just do the signing in Python?
How are you signing it? Maybe we could provide some assitance in writing a python implementation? | 0 | 1 | 0 | 1 | 2009-04-28T14:58:00.000 | 6 | 0.066568 | false | 798,413 | 0 | 0 | 0 | 1 | I'm hacking some support for DomainKeys and DKIM into an open source email marketing program, which uses a python script to send the actual emails via SMTP. I decided to go the quick and dirty route, and just write a perl script that accepts an email message from STDIN, signs it, then returns it signed.
What I would li... |
Notifying container object: best practices | 802,084 | 5 | 4 | 403 | 0 | python,architecture,containers,notifications | You're over-thinking this. Seriously. Python isn't C++; your concerns are non-issues in Python. Just write what makes sense in your problem domain.
" Not absolutely good because of circular references."
Why not? Circularity is of no relevance here at all. Bidirectional relationships are great things. Use them. P... | 0 | 1 | 0 | 1 | 2009-04-29T11:31:00.000 | 5 | 1.2 | true | 801,931 | 0 | 0 | 0 | 2 | I have two classes: Account and Operator. Account contains a list of Operators. Now, whenever an operator (in the list) receives a message I want to notify Account object to perform some business logic as well.
I think of three alternatives on how to achieve this:
1) Hold a reference within Operator to the container [A... |
Notifying container object: best practices | 802,031 | 3 | 4 | 403 | 0 | python,architecture,containers,notifications | There is no "one-size-fits-all" solution for the Observer pattern. But usually, it's better to define an EventManager object where interested parties can register themselves for certain events and post these events whenever they happen. It simply creates less dependencies.
Note that you need to use a global EventManage... | 0 | 1 | 0 | 1 | 2009-04-29T11:31:00.000 | 5 | 0.119427 | false | 801,931 | 0 | 0 | 0 | 2 | I have two classes: Account and Operator. Account contains a list of Operators. Now, whenever an operator (in the list) receives a message I want to notify Account object to perform some business logic as well.
I think of three alternatives on how to achieve this:
1) Hold a reference within Operator to the container [A... |
Python "Task Server" | 1,556,571 | 1 | 4 | 2,958 | 0 | python | You can have a look at celery | 0 | 1 | 0 | 0 | 2009-04-30T02:19:00.000 | 5 | 0.039979 | false | 805,120 | 0 | 0 | 1 | 2 | My question is: which python framework should I use to build my server?
Notes:
This server talks HTTP with it's clients: GET and POST (via pyAMF)
Clients "submit" "tasks" for processing and, then, sometime later, retrieve the associated "task_result"
submit and retrieve might be separated by days - different HTTP co... |
Python "Task Server" | 805,126 | 0 | 4 | 2,958 | 0 | python | It seems any python web framework will suit your needs. I work with a similar system on a daily basis and I can tell you, your solution with threads and SQLite for queue storage is about as simple as you're going to get.
Assuming order doesn't matter in your queue, then threads should be acceptable. It's important to ... | 0 | 1 | 0 | 0 | 2009-04-30T02:19:00.000 | 5 | 0 | false | 805,120 | 0 | 0 | 1 | 2 | My question is: which python framework should I use to build my server?
Notes:
This server talks HTTP with it's clients: GET and POST (via pyAMF)
Clients "submit" "tasks" for processing and, then, sometime later, retrieve the associated "task_result"
submit and retrieve might be separated by days - different HTTP co... |
Python's bz2 module not compiled by default | 813,744 | 28 | 28 | 40,171 | 0 | python,c,compiler-construction | Use your vendor's package management to add the package that contains the development files for bz2. It's usually a package called "libbz2-dev". E.g. on Ubuntu
sudo apt-get install libbz2-dev | 0 | 1 | 0 | 1 | 2009-05-01T19:03:00.000 | 4 | 1 | false | 812,781 | 0 | 0 | 0 | 3 | It seems that Python 2.6.1 doesn't compile bz2 library by default from source.
I don't have lib-dynload/bz2.so
What's the quickest way to add it (without installing Python from scratch)?
OS is Linux 2.4.32-grsec+f6b+gr217+nfs+a32+fuse23+tg+++opt+c8+gr2b-v6.194 #1 SMP Tue Jun 6 15:52:09 PDT 2006 i686 GNU/Linux
IIRC I us... |
Python's bz2 module not compiled by default | 813,112 | 33 | 28 | 40,171 | 0 | python,c,compiler-construction | You need libbz2.so (the general purpose libbz2 library) properly installed first, for Python to be able to build its own interface to it. That would typically be from a package in your Linux distro likely to have "libbz2" and "dev" in the package name. | 0 | 1 | 0 | 1 | 2009-05-01T19:03:00.000 | 4 | 1.2 | true | 812,781 | 0 | 0 | 0 | 3 | It seems that Python 2.6.1 doesn't compile bz2 library by default from source.
I don't have lib-dynload/bz2.so
What's the quickest way to add it (without installing Python from scratch)?
OS is Linux 2.4.32-grsec+f6b+gr217+nfs+a32+fuse23+tg+++opt+c8+gr2b-v6.194 #1 SMP Tue Jun 6 15:52:09 PDT 2006 i686 GNU/Linux
IIRC I us... |
Python's bz2 module not compiled by default | 6,848,047 | 9 | 28 | 40,171 | 0 | python,c,compiler-construction | If you happen to be trying to compile Python on RHEL5 the package is called bzip2-devel, and if you have RHN set up it can be installed with this command:
yum install bzip2-devel
Once that is done, you don't need either of the --enable-bz2 or --with-bz2 options, but you might need --enable-shared. | 0 | 1 | 0 | 1 | 2009-05-01T19:03:00.000 | 4 | 1 | false | 812,781 | 0 | 0 | 0 | 3 | It seems that Python 2.6.1 doesn't compile bz2 library by default from source.
I don't have lib-dynload/bz2.so
What's the quickest way to add it (without installing Python from scratch)?
OS is Linux 2.4.32-grsec+f6b+gr217+nfs+a32+fuse23+tg+++opt+c8+gr2b-v6.194 #1 SMP Tue Jun 6 15:52:09 PDT 2006 i686 GNU/Linux
IIRC I us... |
Google App Engine - design considerations about cron tasks | 815,113 | 3 | 1 | 1,473 | 1 | python,database,google-app-engine,cron | I think you'll find that snapshotting every user's state every hour isn't something that will scale well no matter what your framework. A more ordinary environment will disguise this by letting you have longer running tasks, but you'll still reach the point where it's not practical to take a snapshot of every user's da... | 0 | 1 | 0 | 0 | 2009-05-02T13:54:00.000 | 3 | 0.197375 | false | 814,896 | 0 | 0 | 1 | 1 | I'm developing software using the Google App Engine.
I have some considerations about the optimal design regarding the following issue: I need to create and save snapshots of some entities at regular intervals.
In the conventional relational db world, I would create db jobs which would insert new summary records.
For ... |
how to get the n-th record of a datastore query | 827,149 | 3 | 1 | 845 | 0 | python,google-app-engine,google-cloud-datastore,custompaging | There is no efficient way to do this - in any DBMS. In every case, you have to at least read sequentially through the index records until you find the nth one, then look up the corresponding data record. This is more or less what fetch(count, offset) does in GAE, with the additional limitation of 1000 records.
A better... | 0 | 1 | 0 | 0 | 2009-05-05T20:14:00.000 | 2 | 1.2 | true | 826,724 | 0 | 0 | 1 | 1 | Suppose that I have the model Foo in GAE and this query:
query = Foo.all().order('-key')
I want to get the n-th record. What is the most efficient way to achieve that?
Will the solution break if the ordering property is not unique, such as the one below:
query = Foo.all().order('-color')
edit: n > 1000
edit 2: I want ... |
design for handling exceptions - google app engine | 833,840 | 0 | 6 | 1,603 | 0 | python,google-app-engine,exception-handling,web-applications | Ad. #4: I usually treat query strings as non-essential. If anything is wrong with query string, I'd just present bare resource page (as if no query was present), possibly with some information to user what was wrong with the query string.
This leads to the problem similar to your #3: how did the user got into this wron... | 0 | 1 | 0 | 0 | 2009-05-06T16:51:00.000 | 2 | 0 | false | 830,597 | 0 | 0 | 1 | 1 | I'm developing a project on google app engine (webapp framework). I need you people to assess how I handle exceptions.
There are 4 types of exceptions I am handling:
Programming exceptions
Bad user input
Incorrect URLs
Incorrect query strings
Here is how I handle them:
I have subclassed the webapp.requesthandler cla... |
Cannot access Python server running as Windows service | 834,878 | 0 | 2 | 1,004 | 0 | python,windows-services,tcp | Check to see that the service is running under the Nertwork Service account and not the Local System account. The later doesn't have network access and is the default user to run services under. You can check this by going to the services app under administrative tool in the start menu and looking for your service. ... | 0 | 1 | 0 | 0 | 2009-05-07T05:52:00.000 | 3 | 0 | false | 833,062 | 0 | 0 | 0 | 2 | I have written a Python TCP/IP server for internal use, using win32serviceutil/py2exe to create a Windows service.
I installed it on a computer running Windows XP Pro SP3. However, I can't connect to it when it's running as a service. I can confirm that it's binding to the address/port, because I get a conflict when I ... |
Cannot access Python server running as Windows service | 904,114 | 1 | 2 | 1,004 | 0 | python,windows-services,tcp | First of all, whenever you implement a Windows service, be sure to add proper logging.
My worker threads were terminating because of the exception, "The socket operation could not complete without blocking."
The solution was to simply call sock.setblocking(1) after accepting the connection. | 0 | 1 | 0 | 0 | 2009-05-07T05:52:00.000 | 3 | 1.2 | true | 833,062 | 0 | 0 | 0 | 2 | I have written a Python TCP/IP server for internal use, using win32serviceutil/py2exe to create a Windows service.
I installed it on a computer running Windows XP Pro SP3. However, I can't connect to it when it's running as a service. I can confirm that it's binding to the address/port, because I get a conflict when I ... |
How to run a script without being in the tasktray? | 833,364 | 0 | 1 | 109 | 0 | python | Set the scheduled task to start the script as minimized. | 0 | 1 | 0 | 0 | 2009-05-07T07:45:00.000 | 2 | 0 | false | 833,356 | 0 | 0 | 0 | 2 | I have a scheduled task which runs a python script every 10 min
so it turns out that a script pops up on my desktop every 10 min
how can i make it invincible so my script will work in the background ?
I've been told that pythonw will do the work, but I cant figure out how to use it
any help ?
thanks |
How to run a script without being in the tasktray? | 833,391 | 3 | 1 | 109 | 0 | python | I've been told that pythonw will do the work, but I cant figure out how to use it
Normally you just have to rename the file extension to .pyw. Then it will be executed by pythonw. | 0 | 1 | 0 | 0 | 2009-05-07T07:45:00.000 | 2 | 0.291313 | false | 833,356 | 0 | 0 | 0 | 2 | I have a scheduled task which runs a python script every 10 min
so it turns out that a script pops up on my desktop every 10 min
how can i make it invincible so my script will work in the background ?
I've been told that pythonw will do the work, but I cant figure out how to use it
any help ?
thanks |
datastore transaction restrictions | 838,960 | 0 | 3 | 384 | 1 | python,google-app-engine,transactions,google-cloud-datastore | After a through research, I have found that a distributed transaction layer that provides a solution to the single entity group restriction has been developed in userland with the help of some google people. But so far, it is not released and is only available in java. | 0 | 1 | 0 | 0 | 2009-05-07T20:55:00.000 | 3 | 1.2 | true | 836,992 | 0 | 0 | 1 | 1 | in my google app application, whenever a user purchases a number of contracts, these events are executed (simplified for clarity):
user.cash is decreased
user.contracts is increased by the number
contracts.current_price is updated.
market.no_of_transactions is increased by 1.
in a rdms, these would be placed within t... |
How do I invoke Python code from Ruby? | 837,862 | -1 | 5 | 6,499 | 0 | python,ruby | For python code to run the interpreter needs to be launched as a process. So system() is your best option.
For calling the python code you could use RPC or network sockets, got for the simplest thing which could possibly work. | 0 | 1 | 0 | 1 | 2009-05-07T21:59:00.000 | 5 | -0.039979 | false | 837,256 | 0 | 0 | 1 | 2 | Does a easy to use Ruby to Python bridge exist? Or am I better off using system()? |
How do I invoke Python code from Ruby? | 837,296 | 2 | 5 | 6,499 | 0 | python,ruby | I don't think there's any way to invoke Python from Ruby without forking a process, via system() or something. The language run times are utterly diferent, they'd need to be in separate processes anyway. | 0 | 1 | 0 | 1 | 2009-05-07T21:59:00.000 | 5 | 0.07983 | false | 837,256 | 0 | 0 | 1 | 2 | Does a easy to use Ruby to Python bridge exist? Or am I better off using system()? |
Twisted and p2p applications | 839,411 | 1 | 14 | 5,823 | 0 | python,twisted,protocols,p2p | Yes, twisted was used to create the initial version of Bittorrent. There are some opensource libraries to start from. | 0 | 1 | 0 | 0 | 2009-05-08T11:20:00.000 | 4 | 0.049958 | false | 839,384 | 0 | 0 | 0 | 1 | Can you tell me: could I use twisted for p2p-applications creating? And what protocols should I choose for this? |
Advice for Windows system scripting+programming | 841,689 | 8 | 0 | 501 | 0 | .net,ruby,powershell,scripting,ironpython | Except for the seventh item on your list this should be fairly trivial using Powershell and WMI, as this is perhaps the natural domain for Powershell. Since you won't need another language for the first six list items it shouldn't really matter what you use for the last one. You probably can use PS (I've never done IO ... | 0 | 1 | 0 | 1 | 2009-05-08T20:35:00.000 | 7 | 1 | false | 841,669 | 0 | 0 | 0 | 3 | I just got a project where I have to do the following on a Windows OS:
detect how many drives (C: D: E:
..etc) are connected to current
system
what the system labels are
for each volume
how much storage
(both used and free) for each of the
drives
what format each drive is
(NTFS/FAT32)
how many files are
in a given ... |
Advice for Windows system scripting+programming | 844,915 | 0 | 0 | 501 | 0 | .net,ruby,powershell,scripting,ironpython | As for Perl, Ruby too has access to all Win32 API and WMI functions. | 0 | 1 | 0 | 1 | 2009-05-08T20:35:00.000 | 7 | 0 | false | 841,669 | 0 | 0 | 0 | 3 | I just got a project where I have to do the following on a Windows OS:
detect how many drives (C: D: E:
..etc) are connected to current
system
what the system labels are
for each volume
how much storage
(both used and free) for each of the
drives
what format each drive is
(NTFS/FAT32)
how many files are
in a given ... |
Advice for Windows system scripting+programming | 842,535 | 0 | 0 | 501 | 0 | .net,ruby,powershell,scripting,ironpython | I'll give you the unpopular answer then since no one else has added it: Perl.
If you're comfortable with the Win32 API as a C/C++ programmer, Perl may be the easier way to go. It has modules for accessing the Win32 API and Perl is quite easy for C/C++ programmers to get up to speed in. Perl has always done the job f... | 0 | 1 | 0 | 1 | 2009-05-08T20:35:00.000 | 7 | 0 | false | 841,669 | 0 | 0 | 0 | 3 | I just got a project where I have to do the following on a Windows OS:
detect how many drives (C: D: E:
..etc) are connected to current
system
what the system labels are
for each volume
how much storage
(both used and free) for each of the
drives
what format each drive is
(NTFS/FAT32)
how many files are
in a given ... |
Piping Batch File output to a Python script | 842,139 | 1 | 3 | 9,251 | 0 | python,windows,scripting,batch-file,io | Try subprocess.Popen(). It allows you to redirect stdout and stderr to files. | 0 | 1 | 0 | 0 | 2009-05-08T22:41:00.000 | 3 | 0.066568 | false | 842,120 | 0 | 0 | 0 | 1 | I'm trying to write a python script (in windows) that runs a batch file and will take the command line output of that batch file as input. The batch file runs processes that I don't have access to and gives output based on whether those processes are successful. I'd like to take those messages from the batch file and u... |
Is Twisted an httplib2/socket replacement? | 847,014 | 0 | 6 | 1,969 | 0 | python,networking,sockets,twisted,httplib2 | Should new networking code (with the exception of small command line tools) be written with Twisted?
Maybe. It really depends. Sometimes its just easy enough to wrap the blocking calls in their own thread. Twisted is good for large scale network code.
Would you mix Twisted, http2lib or socket code in the same projec... | 0 | 1 | 1 | 0 | 2009-05-11T06:30:00.000 | 2 | 1.2 | true | 846,950 | 0 | 0 | 0 | 1 | Many python libraries, even recently written ones, use httplib2 or the socket interface to perform networking tasks.
Those are obviously easier to code on than Twisted due to their blocking nature, but I think this is a drawback when integrating them with other code, especially GUI one. If you want scalability, concurr... |
Python M2Crypto EC Support | 848,795 | 0 | 2 | 880 | 0 | python,m2crypto | Possibly its looking up shared libs libssl.so and libcrypto.so and finding the old ones in /usr/lib if you add the new_path to the top of /etc/ld.so.conf so it gets searched first it would work. But this might break other OpenSSL applications expecting old OpenSSL. | 0 | 1 | 0 | 1 | 2009-05-11T14:55:00.000 | 3 | 0 | false | 848,508 | 0 | 0 | 0 | 1 | M2Crypto provides EC support for ECDSA/ECDH. I have installed OpenSSL 0.9.8i which contains support for EC. However when I run "from M2Crypto import EC,BIO" I get error saying EC_init() failed. So I added debug to print m2.OPENSSL_VERSION_TEXT value. It gets printed as "OpenSSL 0.9.7 19 Feb 2003". This version of OpenS... |
How to establish communication between flex and python code build on Google App Engine | 854,403 | 0 | 0 | 1,782 | 0 | python,apache-flex,google-app-engine | Do a HTTP post from Flex to your AppEngine app using the URLRequest class. | 0 | 1 | 1 | 0 | 2009-05-12T19:11:00.000 | 2 | 0 | false | 854,353 | 0 | 0 | 1 | 1 | I want to communicate using flex client with GAE, I am able to communicate using XMl from GAE to FLex but how should I post from flex3 to python code present on App Engine.
Can anyone give me a hint about how to send login information from Flex to python
Any ideas suggest me some examples.....please provide me some he... |
Running django on OSX | 856,033 | 5 | 1 | 1,602 | 0 | python,django,macos | Unless you are planning on going to production with OS X you might not want to bother. If you must do it, go straight to mod_wsgi. Don't bother with mod_python or older solutions. I did mod_python on Apache and while it runs great now, it took countless hours to set up.
Also, just to clarify something based on what you... | 0 | 1 | 0 | 0 | 2009-05-12T23:29:00.000 | 4 | 0.244919 | false | 855,408 | 0 | 0 | 1 | 2 | I've just completed the very very nice django tutorial and it all went swimmingly. One of the first parts of the tutorial is that it says not to use their example server thingie in production, my first act after the tutorial was thus to try to run my app on apache.
I'm running OSX 10.5 and have the standard apache (whi... |
Running django on OSX | 856,986 | 2 | 1 | 1,602 | 0 | python,django,macos | Yet another option is to consider using a virtual machine for your development. You can install a full version of whatever OS your production server will be running - say, Debian - and run your Apache and DB in the VM.
You can connect to the virtual disk in the Finder, so you can still use TextMate (or whatever) on OSX... | 0 | 1 | 0 | 0 | 2009-05-12T23:29:00.000 | 4 | 0.099668 | false | 855,408 | 0 | 0 | 1 | 2 | I've just completed the very very nice django tutorial and it all went swimmingly. One of the first parts of the tutorial is that it says not to use their example server thingie in production, my first act after the tutorial was thus to try to run my app on apache.
I'm running OSX 10.5 and have the standard apache (whi... |
Python: Plugging wx.py.shell.Shell into a separate process | 892,646 | 1 | 1 | 1,527 | 0 | python,shell,wxpython,multiprocessing | First create the shell
Decouple the shell from your app by making its locals empty
Create your code string
Compile the code string and get a code object
Execute the code object in the shell
from wx.py.shell import Shell
frm = wx.Frame(None)
sh = Shell(frm)
frm.Show()
sh.interp.locals = {}
... | 0 | 1 | 0 | 0 | 2009-05-14T18:56:00.000 | 2 | 1.2 | true | 865,082 | 1 | 0 | 0 | 1 | I would like to create a shell which will control a separate process that I created with the multiprocessing module. Possible? How?
EDIT:
I have already achieved a way to send commands to the secondary process: I created a code.InteractiveConsole in that process, and attached it to an input queue and an output queue, s... |
Creating a new terminal/shell window to simply display text | 866,750 | 0 | 1 | 1,202 | 0 | python,shell | You say "pipe" so I assume you're dealing with text output from the subprocesses. A simple solution may be to just write output to files?
e.g. in the subprocess:
Redirect output %TEMP%\output.txt
On exit, copy output.txt to a directory your main process is watching.
In the main process:
Every second, examine direct... | 0 | 1 | 0 | 0 | 2009-05-15T02:16:00.000 | 3 | 0 | false | 866,737 | 0 | 0 | 0 | 1 | I want to pipe [edit: real-time text] the output of several subprocesses (sometimes chained, sometimes parallel) to a single terminal/tty window that is not the active python shell (be it an IDE, command-line, or a running script using tkinter). IPython is not an option. I need something that comes with the standard in... |
Python program using os.pipe and os.fork() issue | 871,515 | 6 | 13 | 16,065 | 0 | python,pipe,fork | Using
fcntl.fcntl(readPipe, fcntl.F_SETFL, os.O_NONBLOCK)
Before invoking the read() solved both problems. The read() call is no longer blocking and the data is appearing after just a flush() on the writing end. | 0 | 1 | 0 | 0 | 2009-05-16T01:36:00.000 | 4 | 1 | false | 871,447 | 0 | 0 | 0 | 1 | I've recently needed to write a script that performs an os.fork() to split into two processes. The child process becomes a server process and passes data back to the parent process using a pipe created with os.pipe(). The child closes the 'r' end of the pipe and the parent closes the 'w' end of the pipe, as usual. I co... |
How do you pass script arguments to pdb (Python)? | 67,887,744 | 1 | 22 | 12,717 | 0 | python,debugging,arguments,pdb | python3 -m pdb myscript.py -a val if using argparse with flag "a" and value "val" | 0 | 1 | 0 | 0 | 2009-05-16T19:17:00.000 | 4 | 0.049958 | false | 873,089 | 1 | 0 | 0 | 1 | I've got python script (ala #! /usr/bin/python) and I want to debug it with pdb. How can I pass arguments to the script?
I have a python script and would like to debug it with pdb. Is there a way that I can pass arguments to the scripts? |
Admin privileges for script | 874,519 | 7 | 2 | 2,996 | 0 | python,unix,root,sudo | The concept of "admin-privileges" in our day of fine grained privilege control is becoming hard to define. If you are running on unix with "traditional" access control model, getting the effective user id (available in os module) and checking that against root (0) could be what you are looking for. If you know accessin... | 0 | 1 | 0 | 1 | 2009-05-17T12:09:00.000 | 3 | 1 | false | 874,476 | 0 | 0 | 0 | 1 | how can i check admin-privileges for my script during running? |
How do I get 'real-time' information back from a subprocess.Popen in python (2.5) | 2,328,115 | 1 | 47 | 13,436 | 0 | python,subprocess,stdout,popen | I've been running into this problem as well. The problem occurs because you are trying to read stderr as well. If there are no errors, then trying to read from stderr would block.
On Windows, there is no easy way to poll() file descriptors (only Winsock sockets).
So a solution is not to try and read from stderr. | 0 | 1 | 0 | 0 | 2009-05-17T15:20:00.000 | 10 | 0.019997 | false | 874,815 | 0 | 0 | 0 | 2 | I'd like to use the subprocess module in the following way:
create a new process that potentially takes a long time to execute.
capture stdout (or stderr, or potentially both, either together or separately)
Process data from the subprocess as it comes in, perhaps firing events on every line received (in wxPython sa... |
How do I get 'real-time' information back from a subprocess.Popen in python (2.5) | 874,865 | 7 | 47 | 13,436 | 0 | python,subprocess,stdout,popen | stdout will be buffered - so you won't get anything till that buffer is filled, or the subprocess exits.
You can try flushing stdout from the sub-process, or using stderr, or changing stdout on non-buffered mode. | 0 | 1 | 0 | 0 | 2009-05-17T15:20:00.000 | 10 | 1 | false | 874,815 | 0 | 0 | 0 | 2 | I'd like to use the subprocess module in the following way:
create a new process that potentially takes a long time to execute.
capture stdout (or stderr, or potentially both, either together or separately)
Process data from the subprocess as it comes in, perhaps firing events on every line received (in wxPython sa... |
How can I create an local webserver for my python scripts? | 22,310,248 | 2 | 18 | 25,839 | 0 | python,webserver,simplehttpserver | Best way is to make your own local server by using command prompt.
Make a new folder say Project
Make a new folder inside project & name it as "cgi-bin"(without quotes)
Paste your .py file inside the cgi-bin folder
Open cmd and change to the directory from which you want to run the server and type "python -m CGIHTTPSe... | 0 | 1 | 0 | 0 | 2009-05-18T10:13:00.000 | 3 | 0.132549 | false | 877,033 | 0 | 0 | 0 | 1 | I'm looking to use a local webserver to run a series of python scripts for the user. For various unavoidable reasons, the python script must run locally, not on a server. As a result, I'll be using HTML+browser as the UI, which I'm comfortable with, for the front end.
I've been looking, therefore, for a lightweight web... |
How to redirect the output of .exe to a file in python? | 880,929 | 10 | 18 | 15,233 | 0 | python,redirect,io | Easiest is os.system("the.exe -a >thefile.txt"), but there are many other ways, for example with the subprocess module in the standard library. | 0 | 1 | 0 | 0 | 2009-05-19T04:03:00.000 | 5 | 1 | false | 880,918 | 1 | 0 | 0 | 1 | In a script , I want to run a .exe with some command line parameters as "-a",and then
redirect the standard output of the program to a file?
How can I implement that? |
How to hide "cgi-bin", ".py", etc from my URLs? | 882,444 | 3 | 13 | 10,240 | 0 | python,cgi | Just use some good web framework e.g. django and you can have such URLs
more than URLs you will have a better infrastructure, templates, db orm etc | 0 | 1 | 0 | 1 | 2009-05-19T12:24:00.000 | 6 | 0.099668 | false | 882,430 | 0 | 0 | 0 | 1 | Brand new to web design, using python. Got Apache up and running, test python script working in cgi-bin directory. Get valid results when I type in the URL explicitly: ".../cgi-bin/showenv.py"
But I don't want the URL to look that way. Here at stackoverflow, for example, the URLs that display in my address bar neve... |
Django without shell access | 886,561 | 1 | 0 | 702 | 0 | python,django,shell | It is possible.
Usually you will develop your application locally (where shell access is nice to have) and publish your work to your server. All you need for this is FTP access and some way to import a database dump from your development database (often hosters provide an installation of phpMyAdmin for this).
python (... | 0 | 1 | 0 | 0 | 2009-05-20T07:07:00.000 | 2 | 0.099668 | false | 886,526 | 0 | 0 | 1 | 1 | Is it possible to run django without shell access? My hoster supports the following for 5€/month:
python (I assume via mod_python)
mysql
There is no shell nor cronjob support, which costs additional 10€/month, so I'm trying to avoid it.
I know that Google Apps also work without shell access, but I assume that is pos... |
Safe Python Environment in Linux | 5,289,924 | 1 | 2 | 920 | 0 | python,linux,runtime,sandbox,restriction | could you not just run as a user which has no access to anything but the scripts in that directory? | 0 | 1 | 0 | 0 | 2009-05-20T08:50:00.000 | 5 | 0.039979 | false | 886,895 | 1 | 0 | 0 | 4 | Is it possible to create an environment to safely run arbitrary Python scripts under Linux? Those scripts are supposed to be received from untrusted people and may be too large to check them manually.
A very brute-force solution is to create a virtual machine and restore its initial state after every launch of an untru... |
Safe Python Environment in Linux | 887,091 | 2 | 2 | 920 | 0 | python,linux,runtime,sandbox,restriction | You could run jython and use the sandboxing mechanism from the JVM. The sandboxing in the JVM is very strong very well understood and more or less well documented. It will take some time to define exactly what you want to allow and what you dnt want to allow, but you should be able to get a very strong security from th... | 0 | 1 | 0 | 0 | 2009-05-20T08:50:00.000 | 5 | 0.07983 | false | 886,895 | 1 | 0 | 0 | 4 | Is it possible to create an environment to safely run arbitrary Python scripts under Linux? Those scripts are supposed to be received from untrusted people and may be too large to check them manually.
A very brute-force solution is to create a virtual machine and restore its initial state after every launch of an untru... |
Safe Python Environment in Linux | 887,104 | 4 | 2 | 920 | 0 | python,linux,runtime,sandbox,restriction | There are 4 things you may try:
As you already mentioned, using a virtual machine or some other form of virtualisation (perhaps solaris zones are lightweight enough?). If the script breaks the OS there then you don't care.
Using chroot, which puts a shell session into a virtual root directory, separate from the main O... | 0 | 1 | 0 | 0 | 2009-05-20T08:50:00.000 | 5 | 0.158649 | false | 886,895 | 1 | 0 | 0 | 4 | Is it possible to create an environment to safely run arbitrary Python scripts under Linux? Those scripts are supposed to be received from untrusted people and may be too large to check them manually.
A very brute-force solution is to create a virtual machine and restore its initial state after every launch of an untru... |
Safe Python Environment in Linux | 886,945 | 4 | 2 | 920 | 0 | python,linux,runtime,sandbox,restriction | Consider using a chroot jail. Not only is this very secure, well-supported and tested but it also applies to external applications you run from python. | 0 | 1 | 0 | 0 | 2009-05-20T08:50:00.000 | 5 | 1.2 | true | 886,895 | 1 | 0 | 0 | 4 | Is it possible to create an environment to safely run arbitrary Python scripts under Linux? Those scripts are supposed to be received from untrusted people and may be too large to check them manually.
A very brute-force solution is to create a virtual machine and restore its initial state after every launch of an untru... |
Change file creation date | 887,652 | 2 | 15 | 23,873 | 0 | python,linux,file,date | I am not a UNIX expert, so maybe I'm wrong, but I think that UNIX (or Linux) don't store file creation time. | 0 | 1 | 0 | 0 | 2009-05-20T12:12:00.000 | 5 | 0.07983 | false | 887,557 | 0 | 0 | 0 | 1 | Can I change creation date of some file using Python in Linux? |
Install older versions of Python for testing on Mac OS X | 891,966 | 0 | 2 | 5,880 | 0 | python,version,installation | You can also use the Fink package manager and simply to "fink install python2.3".
If you need Python 2.3 to be your default, you can simply change /sw/bin/python and /sw/bin/pydoc to point to the version you want (they sit in /sw/bin/). | 0 | 1 | 0 | 0 | 2009-05-21T00:00:00.000 | 4 | 0 | false | 890,827 | 1 | 0 | 0 | 2 | I have Mac OS X 10.5.7 with Python 2.5. I need to test a package I am working on with Python 2.3 for compatibility. I don't want to downgrade my whole system so is there a way to do an install of Python 2.3 that does not change the system python? |
Install older versions of Python for testing on Mac OS X | 892,087 | 0 | 2 | 5,880 | 0 | python,version,installation | One alternative is to use a virtual machine.
With something like VMWare Fusion or Virtualbox you could install a complete Linux system with Python2.3, and do your testing there. The advantage is that it would be completely sand-boxed, so wouldn't affect your main system at all. | 0 | 1 | 0 | 0 | 2009-05-21T00:00:00.000 | 4 | 0 | false | 890,827 | 1 | 0 | 0 | 2 | I have Mac OS X 10.5.7 with Python 2.5. I need to test a package I am working on with Python 2.3 for compatibility. I don't want to downgrade my whole system so is there a way to do an install of Python 2.3 that does not change the system python? |
Send emails from Google App Engine | 892,427 | 2 | 0 | 1,502 | 0 | python,django,google-app-engine,mail-server | The example code for the remote APi gives you an interactive console from which you can access any of the modules in your application. I see no requirement that they be only datastore operations. | 0 | 1 | 0 | 0 | 2009-05-21T10:31:00.000 | 2 | 0.197375 | false | 892,266 | 0 | 0 | 1 | 1 | I have a web server with Django, hosted with Apache server. I would like to configure Google App Engine for the email server. My web server should be able to use Google App Engine, when it makes any email send using EmailMessage or sendmail infrastructure of Google Mail API.
I learnt that by using Remote API, I can ac... |
How can I launch a python script on windows? | 894,869 | 5 | 1 | 196 | 0 | python | If you're looking to do recurring scheduled tasks, then the Task Scheduler (Vista) or Scheduled Tasks (XP and, I think, earlier) is the appropriate method on Windows. | 0 | 1 | 0 | 0 | 2009-05-21T20:05:00.000 | 2 | 1.2 | true | 894,845 | 0 | 0 | 0 | 1 | I have run a few using batch jobs, but, I am wondering what would be the most appropriate? Maybe using time.strftime? |
os.system() execute command under which linux shell? | 905,294 | 5 | 9 | 35,436 | 0 | python,linux,shell | os.system() just calls the system() system call ("man 3 system"). On most *nixes this means you get /bin/sh.
Note that export VAR=val is technically not standard syntax (though bash understands it, and I think ksh does too). It will not work on systems where /bin/sh is actually the Bourne shell. On those systems you ne... | 0 | 1 | 0 | 0 | 2009-05-25T03:30:00.000 | 4 | 1.2 | true | 905,221 | 0 | 0 | 0 | 1 | I am using /bin/tcsh as my default shell.
However, the tcsh style command os.system('setenv VAR val') doesn't work for me. But os.system('export VAR=val') works.
So my question is how can I know the os.system() run command under which shell? |
show lyrics on ubuntu | 1,450,802 | 2 | 0 | 1,143 | 0 | python,plugins,gnome,rhythmbox | You can't import rhythmbox "built-in" modules from a standard python console.
As far as I know they aren't real modules, they are just objects from the rhythmbox process exposed to plugins. So you can access them only if you are running your script from the rhythmbox process. | 0 | 1 | 0 | 0 | 2009-05-25T12:16:00.000 | 2 | 0.197375 | false | 906,509 | 0 | 0 | 0 | 2 | I'm writing a little script for Ubuntu.
My intention is to call rhythmbox lyrics plug-in with a global short-cut (configuring gnome) .
I can call it from rhythmbox python console, but I don't know how to import rhythmbox built-in modules (eg. rhythmdb).
Any ideas? |
show lyrics on ubuntu | 4,594,514 | 0 | 0 | 1,143 | 0 | python,plugins,gnome,rhythmbox | in this case i guess you'll have to write the whole plugin yourself and , then listen to dbus for change of songs in rhythmbox , to detect which song is being played . | 0 | 1 | 0 | 0 | 2009-05-25T12:16:00.000 | 2 | 0 | false | 906,509 | 0 | 0 | 0 | 2 | I'm writing a little script for Ubuntu.
My intention is to call rhythmbox lyrics plug-in with a global short-cut (configuring gnome) .
I can call it from rhythmbox python console, but I don't know how to import rhythmbox built-in modules (eg. rhythmdb).
Any ideas? |
Making a Python script executable chmod755? | 907,605 | 0 | 4 | 3,729 | 0 | python,hosting | In addition to the other fine answers here, you should be aware that most FTP clients have a chmod command to allow you to set permissions on files at the server. You may not need this if permissions come across properly, but there's a good chance they do not. | 0 | 1 | 0 | 0 | 2009-05-25T18:05:00.000 | 5 | 0 | false | 907,579 | 0 | 0 | 0 | 1 | My hosting provider says my python script must be made to be executable(chmod755). What does this mean & how do I do it?
Cheers! |
Reinstall /Library/Python on OS X Leopard | 917,897 | 1 | 0 | 2,889 | 0 | python,macos,osx-leopard,reinstall | /Library/Python contains your python site-packages, which is the local software you've installed using commands like python setup.py install. The pieces here are third-party packages, not items installed by Apple - your actual Python installation is still safe in /System/Library/etc...
In other words, the default OS l... | 0 | 1 | 0 | 0 | 2009-05-27T20:31:00.000 | 3 | 1.2 | true | 917,876 | 1 | 0 | 0 | 2 | I accidentally removed /Library/Python on OS X Leopard. How can I reinstall that? |
Reinstall /Library/Python on OS X Leopard | 917,890 | 1 | 0 | 2,889 | 0 | python,macos,osx-leopard,reinstall | If you'd like, I'll create a tarball from a pristine installation. I'm using MacOSX 10.5.7, and only 12K. | 0 | 1 | 0 | 0 | 2009-05-27T20:31:00.000 | 3 | 0.066568 | false | 917,876 | 1 | 0 | 0 | 2 | I accidentally removed /Library/Python on OS X Leopard. How can I reinstall that? |
Writing a kernel mode profiler for processes in python | 922,814 | 7 | 2 | 2,476 | 0 | python,kernel | It's going to be very difficult to do the process monitoring part in Python, since the python interpreter doesn't run in the kernel.
I suspect there are two easy approaches to this:
use the /proc filesystem if you have one (you don't mention your OS)
Use dtrace if you have dtrace (again, without the OS, who knows.)
... | 0 | 1 | 0 | 0 | 2009-05-28T19:37:00.000 | 4 | 1.2 | true | 922,788 | 1 | 0 | 0 | 1 | I would like seek some guidance in writing a "process profiler" which runs in kernel mode. I am asking for a kernel mode profiler is because I run loads of applications and I do not want my profiler to be swapped out.
When I said "process profiler" I mean to something that would monitor resource usage by the process. i... |
Python Environment Variables in Windows? | 2,318,893 | 0 | 0 | 1,306 | 0 | python,windows,testing,environment-variables | You cannot use environment variables in this way. As you have discovered it is not persistent after the setting application completes | 0 | 1 | 0 | 0 | 2009-05-28T22:48:00.000 | 3 | 0 | false | 923,586 | 1 | 0 | 0 | 1 | I'm developing a script that runs a program with other scripts over and over for testing purposes.
How it currently works is I have one Python script which I launch. That script calls the program and loads the other scripts. It kills the program after 60 seconds to launch the program again with the next script.
For som... |
How to start a process on a remote server, disconnect, then later collect output? | 923,720 | 0 | 2 | 2,588 | 0 | python,testing,scripting | Most commercial products install an "Agent" on the remote machines.
In the linux world, you have numerous such agents. rexec and rlogin and rsh all jump to mind.
These are all clients that communication with daemons running on the remote hosts.
If you don't want to use these agents, you can read about them and reinven... | 0 | 1 | 0 | 1 | 2009-05-28T23:25:00.000 | 8 | 0 | false | 923,691 | 0 | 0 | 0 | 4 | I am writing automation code in python to test the behavior of a network application. As such, my code needs to be able to start a process/script (say, tcpdump or a python script) on a server in the network, disconnect, run other processes and then later return and shutdown/evaluate the process started earlier. My ne... |
How to start a process on a remote server, disconnect, then later collect output? | 923,719 | 0 | 2 | 2,588 | 0 | python,testing,scripting | As @Gandalf mentions, you'll need nohup in addition to the backgrounding &, or the process will be SIGKILLed when the login session terminates. If you redirect your output to a log file, you'll be able to look at it later easily (and not have to install screen on all your machines). | 0 | 1 | 0 | 1 | 2009-05-28T23:25:00.000 | 8 | 0 | false | 923,691 | 0 | 0 | 0 | 4 | I am writing automation code in python to test the behavior of a network application. As such, my code needs to be able to start a process/script (say, tcpdump or a python script) on a server in the network, disconnect, run other processes and then later return and shutdown/evaluate the process started earlier. My ne... |
How to start a process on a remote server, disconnect, then later collect output? | 923,703 | 3 | 2 | 2,588 | 0 | python,testing,scripting | nohup for starters (at least on *nix boxes) - and redirect the output to some log file where you can come back and monitor it of course. | 0 | 1 | 0 | 1 | 2009-05-28T23:25:00.000 | 8 | 0.07486 | false | 923,691 | 0 | 0 | 0 | 4 | I am writing automation code in python to test the behavior of a network application. As such, my code needs to be able to start a process/script (say, tcpdump or a python script) on a server in the network, disconnect, run other processes and then later return and shutdown/evaluate the process started earlier. My ne... |
How to start a process on a remote server, disconnect, then later collect output? | 20,889,031 | 0 | 2 | 2,588 | 0 | python,testing,scripting | If you are using python to run the automation... I would attempt to automate everything using paramiko. It's a versatile ssh library for python. Instead of going back to the output, you could collect multiple lines of output live and then disconnect when you no longer need the process and let ssh do the killing for y... | 0 | 1 | 0 | 1 | 2009-05-28T23:25:00.000 | 8 | 0 | false | 923,691 | 0 | 0 | 0 | 4 | I am writing automation code in python to test the behavior of a network application. As such, my code needs to be able to start a process/script (say, tcpdump or a python script) on a server in the network, disconnect, run other processes and then later return and shutdown/evaluate the process started earlier. My ne... |
Fedora Python Upgrade broke easy_install | 926,006 | 2 | 0 | 1,989 | 0 | python,fedora,easy-install | I suggest you create a virtualenv (or several) for installing packages into. | 0 | 1 | 0 | 1 | 2009-05-29T13:29:00.000 | 3 | 0.132549 | false | 925,965 | 0 | 0 | 0 | 2 | Fedora Core 9 includes Python 2.5.1. I can use YUM to get latest and greatest releases.
To get ready for 2.6 official testing, I wanted to start with 2.5.4. It appears that there's no Fedora 9 YUM package, because 2.5.4 isn't an official part of FC9.
I downloaded 2.5.4, did ./configure; make; make install and wound u... |
Fedora Python Upgrade broke easy_install | 926,636 | 2 | 0 | 1,989 | 0 | python,fedora,easy-install | I've had similar experiences and issues when installing Python 2.5 on an older release of ubuntu that supplied 2.4 out of the box.
I first tried to patch easy_install, but this led to problems with anything that wanted to use the os-supplied version of python. I was often fiddling with the tool chain to fix different e... | 0 | 1 | 0 | 1 | 2009-05-29T13:29:00.000 | 3 | 0.132549 | false | 925,965 | 0 | 0 | 0 | 2 | Fedora Core 9 includes Python 2.5.1. I can use YUM to get latest and greatest releases.
To get ready for 2.6 official testing, I wanted to start with 2.5.4. It appears that there's no Fedora 9 YUM package, because 2.5.4 isn't an official part of FC9.
I downloaded 2.5.4, did ./configure; make; make install and wound u... |
How to get the owner and group of a folder with Python on a Linux machine? | 927,888 | 0 | 25 | 26,467 | 0 | python,linux,directory,owner | Use the os.stat function. | 0 | 1 | 0 | 1 | 2009-05-29T20:04:00.000 | 6 | 0 | false | 927,866 | 0 | 0 | 0 | 2 | How can I get the owner and group IDs of a directory using Python under Linux? |
How to get the owner and group of a folder with Python on a Linux machine? | 71,426,599 | 0 | 25 | 26,467 | 0 | python,linux,directory,owner | If you are using Linux, it is much easier.
Install tree with the command yum install tree. Then execute the command 'tree -a -u -g' | 0 | 1 | 0 | 1 | 2009-05-29T20:04:00.000 | 6 | 0 | false | 927,866 | 0 | 0 | 0 | 2 | How can I get the owner and group IDs of a directory using Python under Linux? |
Why no pure Python SSH1 (version 1) client implementations? | 936,816 | 1 | 4 | 1,865 | 0 | python,ssh | Well, the main reason probably was that when people started getting interested in such things in VHLLs such as Python, it didn't make sense to them to implement a standard which they themselves would not find useful.
I am not familiar with the protocol differences, but would it be possible for you to adapt an existing ... | 0 | 1 | 0 | 1 | 2009-06-01T21:06:00.000 | 2 | 0.099668 | false | 936,783 | 0 | 0 | 0 | 2 | There seem to be a few good pure Python SSH2 client implementations out there, but I haven't been able to find one for SSH1. Is there some specific reason for this other than lack of interest in such a project? I am fully aware of the many SSH1 vulnerabilities, but a pure Python SSH1 client implementation would still b... |
Why no pure Python SSH1 (version 1) client implementations? | 940,483 | 3 | 4 | 1,865 | 0 | python,ssh | SSHv1 was considered deprecated in 2001, so I assume nobody really wanted to put the effort into it. I'm not sure if there's even an rfc for SSH1, so getting the full protocol spec may require reading through old source code.
Since there are known vulnerabilities, it's not much better than telnet, which is almost unive... | 0 | 1 | 0 | 1 | 2009-06-01T21:06:00.000 | 2 | 1.2 | true | 936,783 | 0 | 0 | 0 | 2 | There seem to be a few good pure Python SSH2 client implementations out there, but I haven't been able to find one for SSH1. Is there some specific reason for this other than lack of interest in such a project? I am fully aware of the many SSH1 vulnerabilities, but a pure Python SSH1 client implementation would still b... |
mounting an s3 bucket in ec2 and using transparently as a mnt point | 6,308,720 | 0 | 4 | 8,589 | 1 | python,django,amazon-s3,amazon-ec2 | I'd suggest using a separately-mounted EBS volume. I tried doing the same thing for some movie files. Access to S3 was slow, and S3 has some limitations like not being able to rename files, no real directory structure, etc.
You can set up EBS volumes in a RAID5 configuration and add space as you need it. | 0 | 1 | 0 | 0 | 2009-06-05T16:39:00.000 | 5 | 0 | false | 956,904 | 0 | 0 | 1 | 1 | I have a webapp (call it myapp.com) that allows users to upload files. The webapp will be deployed on Amazon EC2 instance. I would like to serve these files back out to the webapp consumers via an s3 bucket based domain (i.e. uploads.myapp.com).
When the user uploads the files, I can easily drop them in into a fold... |
How can I create a variable that is scoped to a single request in app engine? | 972,243 | 2 | 0 | 211 | 0 | python,google-app-engine | If you're using the 'webapp' framework included with App Engine (or, actually, most other WSGI-baesd frameworks), a new RequestHandler is instantiated for each request. Thus, you can use class variables on your handler class to store per-request data. | 0 | 1 | 0 | 0 | 2009-06-08T00:08:00.000 | 4 | 0.099668 | false | 963,080 | 0 | 0 | 1 | 3 | I'm creating a python app for google app engine and I've got a performance problem with some expensive operations that are repetitive within a single request. To help deal with this I'd like to create a sort of mini-cache that's scoped to a single request. This is as opposed to a session-wide or application-wide cach... |
How can I create a variable that is scoped to a single request in app engine? | 963,706 | 0 | 0 | 211 | 0 | python,google-app-engine | use local list to store data and do a model.put at end of your request processing. save multiple db trips | 0 | 1 | 0 | 0 | 2009-06-08T00:08:00.000 | 4 | 0 | false | 963,080 | 0 | 0 | 1 | 3 | I'm creating a python app for google app engine and I've got a performance problem with some expensive operations that are repetitive within a single request. To help deal with this I'd like to create a sort of mini-cache that's scoped to a single request. This is as opposed to a session-wide or application-wide cach... |
How can I create a variable that is scoped to a single request in app engine? | 963,107 | 1 | 0 | 211 | 0 | python,google-app-engine | Module variables may (or may not) persist between requests (the same app instance may or may not stay alive between requests), but you can explicitly clear them (del, or set to None, say) at the start of your handling a request, or when you know you're done with one. At worst (if your code is peculiarly organized) you ... | 0 | 1 | 0 | 0 | 2009-06-08T00:08:00.000 | 4 | 0.049958 | false | 963,080 | 0 | 0 | 1 | 3 | I'm creating a python app for google app engine and I've got a performance problem with some expensive operations that are repetitive within a single request. To help deal with this I'd like to create a sort of mini-cache that's scoped to a single request. This is as opposed to a session-wide or application-wide cach... |
python: find out if running in shell or not (e.g. sun grid engine queue) | 967,383 | 6 | 7 | 1,762 | 0 | python,shell,terminal,stdout | You can use os.getppid() to find out the process id for the parent-process of this one, and then use that process id to determine which program that process is running. More usefully, you could use sys.stdout.isatty() -- that doesn't answer your title question but appears to better solve the actual problem you explain ... | 0 | 1 | 0 | 0 | 2009-06-08T22:36:00.000 | 4 | 1 | false | 967,369 | 0 | 0 | 0 | 1 | is there a way to find out from within a python program if it was started in a terminal or e.g. in a batch engine like sun grid engine?
the idea is to decide on printing some progress bars and other ascii-interactive stuff, or not.
thanks!
p. |
Eclipse + local CVS + PyDev | 969,236 | 1 | 4 | 2,673 | 0 | python,eclipse,cvs,pydev | I tried Eclipse+Subclipse and Eclipse+Bazaar plugin. Both work very well, but I have found that Tortoise versions of those version source control tools are so good that I resigned from Eclipse plugins. On Windows Tortoise XXX are my choice. They integrate with shell (Explorer or TotalCommander), changes icon overlay if... | 0 | 1 | 0 | 0 | 2009-06-09T09:43:00.000 | 8 | 0.024995 | false | 969,121 | 1 | 0 | 1 | 4 | I tried several Python IDEs (on Windows platform) but finally I found only Eclipse + PyDev meeting my needs. This set of tools is really comfortable and easy to use. I'm currently working on a quite bigger project. I'd like to have a possibility to use CVS or any other version control system which would be installed on... |
Eclipse + local CVS + PyDev | 969,642 | 4 | 4 | 2,673 | 0 | python,eclipse,cvs,pydev | Last time I tried this, Eclipse did not support direct access to local repositories in the same way that command line cvs does because command line cvs has both client and server functionality whereas Eclipse only has client functionality and needs to go through (e.g.) pserver, so you would probably need to have a cvs ... | 0 | 1 | 0 | 0 | 2009-06-09T09:43:00.000 | 8 | 1.2 | true | 969,121 | 1 | 0 | 1 | 4 | I tried several Python IDEs (on Windows platform) but finally I found only Eclipse + PyDev meeting my needs. This set of tools is really comfortable and easy to use. I'm currently working on a quite bigger project. I'd like to have a possibility to use CVS or any other version control system which would be installed on... |
Eclipse + local CVS + PyDev | 976,961 | 0 | 4 | 2,673 | 0 | python,eclipse,cvs,pydev | I recently moved my house and don't have yet an access to internet.
CVS and SVN are the Centralized Version control systems. Rather than having to install them on your local system just for single version control, you could use DVCS like Mercurial or Git.
When you clone a Mercurial Repository, you have literally all v... | 0 | 1 | 0 | 0 | 2009-06-09T09:43:00.000 | 8 | 0 | false | 969,121 | 1 | 0 | 1 | 4 | I tried several Python IDEs (on Windows platform) but finally I found only Eclipse + PyDev meeting my needs. This set of tools is really comfortable and easy to use. I'm currently working on a quite bigger project. I'd like to have a possibility to use CVS or any other version control system which would be installed on... |
Eclipse + local CVS + PyDev | 969,134 | 1 | 4 | 2,673 | 0 | python,eclipse,cvs,pydev | If you don't mind a switch to Subversion, Eclipse has its SubClipse plugin. | 0 | 1 | 0 | 0 | 2009-06-09T09:43:00.000 | 8 | 0.024995 | false | 969,121 | 1 | 0 | 1 | 4 | I tried several Python IDEs (on Windows platform) but finally I found only Eclipse + PyDev meeting my needs. This set of tools is really comfortable and easy to use. I'm currently working on a quite bigger project. I'd like to have a possibility to use CVS or any other version control system which would be installed on... |
users module errors in Google App Engine | 14,879,943 | 1 | 1 | 444 | 0 | python,google-app-engine | Actually not my answer, but from the OP, that didn't act on S. Lott's comment:
It works now! but I didnt change anything actually, seems like Google need time to update its database for app engine. like 20 mins. | 0 | 1 | 0 | 0 | 2009-06-09T12:48:00.000 | 1 | 0.197375 | false | 969,877 | 0 | 0 | 1 | 1 | I want to use user service of my domain in google App, but...
Is it possible to solve this problem by my side?
Traceback (most recent call last):
File "/base/python_lib/versions/1/google/appengine/ext/webapp/__init__.py", line 501, in __call__
handler.get(*groups)
File "/base/data/home/apps/myapp2009/1.3340817... |
Getting a list of all subdirectories in the current directory | 35,261,270 | 1 | 824 | 1,160,495 | 0 | python,directory,subdirectory | use a filter function os.path.isdir over os.listdir()
something like this filter(os.path.isdir,[os.path.join(os.path.abspath('PATH'),p) for p in os.listdir('PATH/')]) | 0 | 1 | 0 | 0 | 2009-06-10T02:48:00.000 | 32 | 0.00625 | false | 973,473 | 1 | 0 | 0 | 2 | Is there a way to return a list of all the subdirectories in the current directory in Python?
I know you can do this with files, but I need to get the list of directories instead. |
Getting a list of all subdirectories in the current directory | 973,489 | 41 | 824 | 1,160,495 | 0 | python,directory,subdirectory | If you need a recursive solution that will find all the subdirectories in the subdirectories, use walk as proposed before.
If you only need the current directory's child directories, combine os.listdir with os.path.isdir | 0 | 1 | 0 | 0 | 2009-06-10T02:48:00.000 | 32 | 1 | false | 973,473 | 1 | 0 | 0 | 2 | Is there a way to return a list of all the subdirectories in the current directory in Python?
I know you can do this with files, but I need to get the list of directories instead. |
how to integrate ZSH and (i)python? | 1,070,597 | 11 | 11 | 8,591 | 0 | python,shell,zsh,ipython | I asked this question on the zsh list and this answer worked for me. YMMV.
In genutils.py after the line
if not debug:
Remove the line:
stat = os.system(cmd)
Replace it with:
stat =
subprocess.call(cmd,shell=True,executable='/bin/zsh')
you see, the problem is that that "!" call uses os.system to run it, which ... | 0 | 1 | 0 | 1 | 2009-06-10T03:11:00.000 | 2 | 1.2 | true | 973,520 | 0 | 0 | 0 | 1 | I have been in love with zsh for a long time, and more recently I have been discovering the advantages of the ipython interactive interpreter over python itself. Being able to cd, to ls, to run or to ! is indeed very handy. But now it feels weird to have such a clumsy shell when in ipython, and I wonder how I could int... |
Thinking in AppEngine | 979,391 | 1 | 6 | 1,022 | 1 | java,python,google-app-engine,data-modeling | The non relational database design essentially involves denormalization wherever possible.
Example: Since the BigTable doesnt provide enough aggregation features, the sum(cash) option that would be in the RDBMS world is not available. Instead it would have to be stored on the model and the model save method must be ove... | 0 | 1 | 0 | 0 | 2009-06-10T16:13:00.000 | 4 | 0.049958 | false | 976,639 | 0 | 0 | 1 | 2 | I'm looking for resources to help migrate my design skills from traditional RDBMS data store over to AppEngine DataStore (ie: 'Soft Schema' style). I've seen several presentations and all touch on the the overarching themes and some specific techniques.
I'm wondering if there's a place we could pool knowledge from exp... |
Thinking in AppEngine | 978,757 | 1 | 6 | 1,022 | 1 | java,python,google-app-engine,data-modeling | The timeouts are tight and performance was ok but not great, so I found myself using extra space to save time; for example I had a many-to-many relationship between trading cards and players, so I duplicated the information of who owns what: Card objects have a list of Players and Player objects have a list of Cards.
N... | 0 | 1 | 0 | 0 | 2009-06-10T16:13:00.000 | 4 | 0.049958 | false | 976,639 | 0 | 0 | 1 | 2 | I'm looking for resources to help migrate my design skills from traditional RDBMS data store over to AppEngine DataStore (ie: 'Soft Schema' style). I've seen several presentations and all touch on the the overarching themes and some specific techniques.
I'm wondering if there's a place we could pool knowledge from exp... |
Can I make Python 2.5 exit on ctrl-D in Windows instead of ctrl-Z? | 978,669 | 0 | 7 | 5,212 | 0 | python,windows,python-2.5 | Run Cygwin Python if windowisms are bothering you... Unless what you are doing depends on pywin32 that is. | 0 | 1 | 0 | 0 | 2009-06-10T16:40:00.000 | 4 | 0 | false | 976,796 | 1 | 0 | 0 | 2 | I'm used to ending the python interactive interpreter using Ctrl-d using Linux and OS X. On windows though, you have to use CTRL+Z and then enter. Is there any way to use CTRL+D? |
Can I make Python 2.5 exit on ctrl-D in Windows instead of ctrl-Z? | 977,031 | 0 | 7 | 5,212 | 0 | python,windows,python-2.5 | You can change the key set that Idle should be using.
Under Options->"Configure IDLE..."
go to the "Keys" tab.
On the right you can select the
"IDLE Classic Unix" key set. | 0 | 1 | 0 | 0 | 2009-06-10T16:40:00.000 | 4 | 0 | false | 976,796 | 1 | 0 | 0 | 2 | I'm used to ending the python interactive interpreter using Ctrl-d using Linux and OS X. On windows though, you have to use CTRL+Z and then enter. Is there any way to use CTRL+D? |
Can Windows drivers be written in Python? | 981,251 | 0 | 13 | 13,794 | 0 | python,windows,drivers | No they cannot. Windows drivers must be written in a language that can
Interface with the C based API
Compile down to machine code
Then again, there's nothing stopping you from writing a compiler that translates python to machine code ;) | 0 | 1 | 0 | 0 | 2009-06-11T13:50:00.000 | 7 | 0 | false | 981,200 | 1 | 0 | 0 | 5 | Can Windows drivers be written in Python? |
Can Windows drivers be written in Python? | 981,227 | 0 | 13 | 13,794 | 0 | python,windows,drivers | Never say never but eh.. no
You might be able to hack something together to run user-mode parts of drivers in python. But kernel-mode stuff can only be done in C or assembly. | 0 | 1 | 0 | 0 | 2009-06-11T13:50:00.000 | 7 | 0 | false | 981,200 | 1 | 0 | 0 | 5 | Can Windows drivers be written in Python? |
Can Windows drivers be written in Python? | 981,216 | 1 | 13 | 13,794 | 0 | python,windows,drivers | Python runs in a virtual machine, so no.
BUT:
You could write a compiler that translates Python code to machine language. Once you've done that, you can do it. | 0 | 1 | 0 | 0 | 2009-06-11T13:50:00.000 | 7 | 0.028564 | false | 981,200 | 1 | 0 | 0 | 5 | Can Windows drivers be written in Python? |
Can Windows drivers be written in Python? | 981,320 | 3 | 13 | 13,794 | 0 | python,windows,drivers | The definitive answer is not without embedding an interpreter in your otherwise C/assembly driver. Unless someone has a framework available, then the answer is no. Once you have the interpreter and bindings in place then the rest of the logic could be done in Python.
However, writing drivers is one of the things for wh... | 0 | 1 | 0 | 0 | 2009-06-11T13:50:00.000 | 7 | 0.085505 | false | 981,200 | 1 | 0 | 0 | 5 | Can Windows drivers be written in Python? |
Can Windows drivers be written in Python? | 981,268 | 1 | 13 | 13,794 | 0 | python,windows,drivers | I don't know the restrictions on drivers on windows (memory allocation schemes, dynamic load of libraries and all), but you may be able to embed a python interpreter in your driver, at which point you can do whatever you want. Not that I think it is a good idea :) | 0 | 1 | 0 | 0 | 2009-06-11T13:50:00.000 | 7 | 0.028564 | false | 981,200 | 1 | 0 | 0 | 5 | Can Windows drivers be written in Python? |
Run a Python project in Eclipse as root | 982,463 | 3 | 10 | 4,783 | 0 | python,eclipse,root,sudo,gksudo | It may not be an ideal solution, but the rare times that I need this same functionality I end up just running Eclipse as root. | 0 | 1 | 0 | 0 | 2009-06-11T14:24:00.000 | 3 | 0.197375 | false | 981,411 | 0 | 0 | 0 | 1 | I use Eclipse as my IDE, and when I run my application I wish the application itself to run as root. My program currently checks if it is root, and if not it restarts itself with gksudo. The output, however, isn't written to the console. I can't use sudo, since it doesn't give me a graphical prompt. (While my program i... |
windows command line and Python | 981,705 | 3 | 1 | 8,771 | 0 | python,windows,command-line | python myscript.py | 0 | 1 | 0 | 0 | 2009-06-11T15:07:00.000 | 6 | 1.2 | true | 981,691 | 0 | 0 | 0 | 1 | I have a python script that i want to run from the command line but unsure how to run it. Thanks :) |
How to keep a Python script output window open? | 1,031,891 | 59 | 214 | 389,804 | 0 | python,windows | cmd /k is the typical way to open any console application (not only Python) with a console window that will remain after the application closes. The easiest way I can think to do that, is to press Win+R, type cmd /k and then drag&drop the script you want to the Run dialog. | 0 | 1 | 0 | 0 | 2009-06-16T11:31:00.000 | 25 | 1 | false | 1,000,900 | 1 | 0 | 0 | 6 | I have just started with Python. When I execute a python script file on Windows, the output window appears but instantaneously goes away. I need it to stay there so I can analyze my output. How can I keep it open? |
How to keep a Python script output window open? | 4,477,506 | 6 | 214 | 389,804 | 0 | python,windows | I had a similar problem. With Notepad++ I used to use the command : C:\Python27\python.exe "$(FULL_CURRENT_PATH)" which closed the cmd window immediately after the code terminated.
Now I am using cmd /k c:\Python27\python.exe "$(FULL_CURRENT_PATH)" which keeps the cmd window open. | 0 | 1 | 0 | 0 | 2009-06-16T11:31:00.000 | 25 | 1 | false | 1,000,900 | 1 | 0 | 0 | 6 | I have just started with Python. When I execute a python script file on Windows, the output window appears but instantaneously goes away. I need it to stay there so I can analyze my output. How can I keep it open? |
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