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python [2012/07/30 02:46] – memeruizpython [2021/02/01 05:55] (current) – external edit 127.0.0.1
Line 4: Line 4:
  
 ===== How to read command line arguments ===== ===== How to read command line arguments =====
 +
 +==== Simple approach ====
 +
  
   import sys   import sys
   print sys.argv # this is an array containing all command line arguments inclusive the program name   print sys.argv # this is an array containing all command line arguments inclusive the program name
 +
 +
 +==== OptParse ====
 +
 +  from optparse import OptionParser
 +  parser = OptionParser()
 +  parser.add_option("-f", "--file", dest="filename",
 +                    help="write report to FILE", metavar="FILE")
 +  parser.add_option("-q", "--quiet",
 +                    action="store_false", dest="verbose", default=True,
 +                    help="don't print status messages to stdout")
 +  (options, args) = parser.parse_args()
  
 ===== How to make a python source code file executable ===== ===== How to make a python source code file executable =====
Line 19: Line 34:
   chmod +x example.py   chmod +x example.py
  
 +===== Important functions =====
 +
 +  os.walk("dir")
 +  os.*
 +  sys.argv
 +
 +===== Important modules =====
 +
 +  optparse
 +  multiprocessing
 +  numpy
  
python.1343616390.txt.gz · Last modified: 2021/02/01 05:55 (external edit)