Search Results

Search found 27655 results on 1107 pages for 'visual python'.

Page 450/1107 | < Previous Page | 446 447 448 449 450 451 452 453 454 455 456 457  | Next Page >

• How to keep same substrings in vim regex

  - by invisiblerhino

  Hi everyone. I'd ideally like a vim answer to this: I want to change [*, 1, *, *] to [*, 2, *, *] Here the stars refer to individual characters in the substring, which I would like to keep unchanged. For example [0, 1, 0, 1] to [0, 2, 0, 1] [1, 1, 1, 1] to [1, 2, 1, 1] If people know how to do this in perl or python or whatever, that would be equally good. Cheers

  Read the article

• Tips for debugging list comprehensions?

  - by andylei

  Python list comprehensions are nice, but near impossible to debug. You guys have any good tips / tools for debugging them?

  Read the article

• Get a list/tuple/dict of *all* the arguments passed to a function?

  - by Phillip Oldham

  Given the following function: def foo(a, b, c): pass How would one obtain a list/tuple/dict/etc of the arguments passed in? Specifically, I'm looking for Python's version of JavaScript's arguments keyword or PHP's func_get_args() method. What I'm not looking for is a solution using *args or **kwargs; I need to specify the argument names in the function definition (to ensure they're being passed in) but within the function I want to work with them in a list- or dict-style structure.

  Read the article

• How to stop Django "app not found" error?

  - by cml

  When I run python ./manage.py sql grading my django site comes up with: Error: App with label grading could not be found. Are you sure you INSTALLED_APPS setting is correct? I have the app grading with __init__.py and everything, and my INSTALLED APPS is: INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.admin', 'teachline.courses', 'teachline.grading', ) Why isn't this working?

  Read the article

• Sorting a list of version strings

  - by Zack

  I have a list containing version strings, such as things: versions_list = ["1.1.2", "1.0.0", "1.3.3", "1.0.12", "1.0.2"] I would like to sort it, so the result would be something like this: versions_list = ["1.0.0", "1.0.2", "1.0.12", "1.1.2", "1.3.3"] The order of precendece for the digits should obviously be from left to right, and it should be decending. So 1.2.3 comes before 2.2.3 and 2.2.2 comes before 2.2.3. How do I do this in Python?

  Read the article

• Has anyone used Sphinx to document a C++ project?

  - by Nick

  Sphinx is a new documentation tool for Python. It looks very nice. What I'm wondering is: How suitable this is for documenting a C++ project? Are there any tools for converting existing documentation (e.g. doxygen) to Sphinx format? Are there online/downloadable examples of C++ projects that use Sphinx? Any tips from anyone who has used Sphinx?

  Read the article

• Trying to provide a global logging function

  - by Gekitsuu

  I typically write my scripts with a structure like s #!/usr/bin/python import stuff def do_things(): print "FOO" def main(): do_things() if __name__ == "__main__": main() The problem I have is I'd like to have a logging function that is defined globally and I"m not really sure how to do this. I tried a decorator function but if I define it in main I can't call it from other functions in the script. It seems like something that should be easy to do but not something I have experience with.

  Read the article

• Django: saving pickled object

  - by pistacchio

  Hi, i have a large dictionary I'd like to save. I have pickled it using cPickle.dumps and saved the result into a TextField. When trying to retrieve it (cPicle.loads) i get the following error: loads() argument 1 must be string, not unicode Does anybody have any experience in serializing python objects and storing them in a DB using Django? Thanks in advance.

  Read the article

• Why are filename underscores better than hyphens

  - by Jasie

  From Building Skills in Python: "A file name like exercise_1.py is better than the name execise-1.py. We can run both programs equally well from the command line, but the name with the hyphen limits our ability to write larger and more sophisticated programs." Why?

  Read the article

• Regex to find A and not B on a line

  - by Zach

  I'm looking for a regex to search my python program to find all lines where foo, but not bar, is passed into a method as a keyword argument. I'm playing around with lookahead and lookbehind assertions, but not having much luck. Any help? Thanks

  Read the article

• What is the best book for learning about Algorithms?

  - by sheats

  I know what algorithms are, but I have never consciously used or created one for any of the programming that I have done. So I'd like to get a book about the subject - I'd prefer if it was in python but that's not a strict requirement. What book about algorithms helped you most to understand, use, and create algorithms? One book per answer so they can be voted on...

  Read the article

• How to apply a function to a collection of elements

  - by Cue

  Consider I have an array of elements out of which I want to create a new 'iterable' which on every next applies a custom 'transformation'. What's the proper way of doing it under python 2.x? For people familiar with Java, the equivalent is Iterables#transform from google's collections framework.

  Read the article

• Auto-register class methods using decorator

  - by adamk

  I want to be able to create a python decorator that automatically "registers" class methods in a global repository (with some properties). Example code: class my_class(object): @register(prop1,prop2) def my_method( arg1,arg2 ): # method code here... @register(prop3,prop4) def my_other_method( arg1,arg2 ): # method code here... I want that when loading is done, somewhere there will be a dict containing: { "my_class.my_method" : ( prop1, prop2 ) "my_class.my_other_method" : ( prop3, prop4 ) } Is this possible?

  Read the article

• Compare string with all values in array

  - by Hallik

  I am trying to fumble through python, and learn the best way to do things. I have a string where I am doing a compare with another string to see if there is a match: if paid[j].find(d)>=0: #BLAH BLAH If 'd' were an array, what is the most efficient way to see if the string contained in paid[j] has a match to any value in 'd'?

  Read the article

• How to take advantage of subprocess within Django? - Django

  - by RadiantHex

  Hi folks, I'm currently using os.popen() but have been recommended to use subprocess.popen() instead. Any ideas on how I can integrate this? It would be cool and fun to have a Python shell accessible on a Django app. But I reckon that it might be a bit complex to implement. I guess I would have to retrieve the subprocess, as a new request comes in. Any ideas?

  Read the article

• Split array into smaller arrays.

  - by corymathews

  I am looking for a way to easily split a python array in half. So that if I have an array: A = [0,1,2,3,4,5] I would be able to get: B = [0,1,2] C = [3,4,5]

  Read the article

• How to read a single character at a time from a file?

  - by kaushik

  I want to read a single character at a time from a file in python. Can anyone tell me how can I do this?

  Read the article

• MySql: How to know if an entry is compressed or not

  - by Guy

  I'm working with python and mysql and I want to verify that a certain entry is compressed in the db. Ie: cur = db.getCursor() cur.execute('''select compressed_column from table where id=12345''') res = cur.fetchall() at this point I would like to verify that the entry is compressed (ie in order to work with the data you would have to use select uncompress(compressed_column)..). Ideas?

  Read the article

• Does main() need to be in every script containing handlers?

  - by Will Merydith

  Experienced Java programmer trying to learn Python. I have an applicaiton on Google App Engine and want to move my admin Handlers to a separate file. So now I have main.py and admin.py. I've set up app.yaml to route traffic properly, and have added the call to WSGIApplication() in each file to route to the appropriate Handler. My question is does each script file need def main() and the corresponding if statement: application = webapp.WSGIApplication([(r'/admin/(.*)', Admin)], debug=True) def main(): run_wsgi_app(application) if __name__ == '__main__': main()

  Read the article

• Establish SSH Connection Between Two Isolated Machines Using a 3rd System

  - by FurryHead

  I'd like to do the following with Python: Computer 1 starts SSH server (probably using twisted or paramiko) Computer 1 connects to Server 1 (idle connection) Computer 2 connects to Server 1 Server 1 forwards Computer 2's connection to Computer 1 (connection no longer idle) Computer 1 forwards Server 1's connection to listening SSH port (on computer 1) Result being Computer 2 now has a SSH session with Computer 1, almost as if Computer 2 had started a normal SSH session (but with Server 1's IP instead of Computer 1's) I need this because I can't port forward on Computer 1's network (the router doesn't support it).

  Read the article

• Can we only get the web page header information and not the body? (Mechanize)

  - by VN44CA

  What if I only need to download the page if it has not changed since the last download? What is the best way? can I get the size of the page first, then compare the decide if it has changed, if so, I ask for download else skip? I plan to use (python) mechanize.

  Read the article

• GoogleAppEngine web proxy

  - by Cal S

  Does anyone know of a simple open source proxy capable of running on google app engine or where to start in making one? (preferably in python, I'm trying to bypass a site blocking system)

  Read the article

• What is the easiest, most concise way to make selected attributes in an instance be readonly?

  - by Kevin Little

  In Python, I want to make selected instance attributes of a class be readonly to code outside of the class. I want there to be no way outside code can alter the attribute, except indirectly by invoking methods on the instance. I want the syntax to be concise. What is the best way? (I give my current best answer below...)

  Read the article

• Parse metadata from http live stream

  - by supo

  Hi, I'd like to extract the info string from an internet radio streamed over HTTP. By info string I mean the short note about the currently played song, band name etc. Preferably I'd like to do it in python. So far I've tried opening a socket but from there I got a bunch of binary data that I could not parse... thanks for any hints

  Read the article

• Ptyhon date string to date object

  - by elif

  Hi all, How do I convert a string to a date object in python? The string would be: "24052010" (corresponding to the format: "%d%m%Y") I DON'T want a datetime object. I suspect that I'm asking a trivial question but I searched and couldn't find it neither on stackoverflow nor on google. Thank you, Elif

  Read the article

< Previous Page | 446 447 448 449 450 451 452 453 454 455 456 457  | Next Page >