(key, default=None)
return environ.get(key, default)
Get an environment variable, return None if it doesn't exist.
    The optional second argument can specify an alternate default.
Get an environment variable, return None if it doesn't exist.
    The optional second argument can specify an alternate default.
Get an environment variable return None if it doesn t exist . The optional second argument can specify an alternate default .
def getenv(key, default=None):
    """Get an environment variable, return None if it doesn't exist.
    The optional second argument can specify an alternate default."""
    return environ.get(key, default)
def getenv ( key , default = None ) : return environ . get ( key , default )