Access system environment variables

Access system environment variables


import os# w w  w  .j ava 2s.  co m

def print_system_info() :
    print "Environment strings:"
    for e in os.environ :
        print e

print_system_info()

The code above generates the following result.

os.environ contains a dictionary of environmental variables.


import os
print os.environ['PATH']

Iterating Through Environment Items


import os # from w ww.  j a v  a2  s.  c o  m

for k, v in os.environ.items(): 
    print "%s=%s" % (k, v) 

print "\n".join(["%s=%s" % (k, v) for k, v in os.environ.items()])   

The code above generates the following result.





















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