Work: Python

Showing posts with label Python. Show all posts

Wednesday, May 6, 2015

cscope for python: pycscope

cscope is very helpful when reading C source code. But it does not support python.

Luckily, I found pycscope can generate cscope files for python and it works very well.

Following are two links:

https://pypi.python.org/pypi/pycscope/

http://eli.thegreenplace.net/2010/09/28/pycscope-with-vim

Tuesday, November 1, 2011

Global variable in python

http://docs.python.org/faq/programming.html#what-are-the-rules-for-local-and-global-variables-in-python

http://stackoverflow.com/questions/423379/using-global-variables-in-a-function-other-than-the-one-that-created-them

In short, when modify the global variable in a function, need to explicitly define "global g_sth". This is to avoid using global variables.

Python tutorial and start up script

tutorial:

http://docs.python.org/tutorial/index.html

http://net.tutsplus.com/tutorials/python-tutorials/python-from-scratch-object-oriented-programming/

xml:
http://www.learningpython.com/2008/05/07/elegant-xml-parsing-using-the-elementtree-module/

start up script:

http://stackoverflow.com/questions/5359306/set-and-require-default-python-script-optionparser

from optparse import OptionParser
import sys
def main():
   usage = "usage: %prog [options] arg"
   parser = OptionParser(usage)
   parser.add_option('-d', '--directory',
           action='store', dest='directory',
           default=None, help='specify directory')
   parser.add_option('-f', '--file',
           action='store', dest='filename',
           default=None, help='specify file')
   parser.add_option('-v', '--version',
                     action="store_true", dest="show_version",
                     default=False, help='displays the version number')
   if len(sys.argv) == 1:
       parser.print_help()
       sys.exit()
   (options, args) = parser.parse_args()
   # rest of program...
if __name__ == '__main__':
   main()