Python environment variables
Additional Python Facilities example from a Well House Consultants training course
More on Additional Python Facilities [link]
Source code: penv.py Module: Y115
for param in os.environ.keys():
print "%20s %s" % (param,os.environ[param])
These are the standard Python environment variables ...
PYTHONHOME - Location of standard libraries
PYTHONPATH - Additions to standard search path for modules
PYTHONSTARTUP - Interactive mode; commands run before first input is prompted for
PYTHONY2K - set nonempty to require 4 year date formats
PYTHONOPTIMIZE - set nonempty causes basic optimisation. Set to 2 also discards docstrings
PYTHONDEBUG - set nonempty to turn on python debugging
PYTHONINSPECT - force interactive mode on end of normal program termination
PYTHONUNBUFFERED - turn OFF buffering of stdin, stdout and stderr
PYTHONVERBOSE - provide verbose information about module loading (set to 2 for very verbose!)
PYTHONCASEOK - Ignore case in
Added at Python 2.6
PYTHONIOENCODING - change unicode handling for stdin / stdout / stderr
PYTHONNOUSERSITE - don't add user's directory to sys.path
PYTHONUSERBASE - change the user's directory
PYTHONEXECUTABLE - Mac OS X Only. Override the program name in argv
Sample outpout from the program above
-bash-3.2$ python penv.py
LESSOPEN |/usr/bin/lesspipe.sh %s
SSH_CLIENT 18.104.22.168 53029 22
SSH_CONNECTION 22.214.171.124 53029 126.96.36.199 22
Learn about this subject
This module and example are covered on the following public courses:
* Learning to program in Python
* Python Programming
* Intermediate Python
Also available on on site courses for larger groups
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