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ekohl/functions.py

Created March 22, 2010 20:32
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functions.py
# http://www.matusiak.eu/numerodix/blog/index.php/2010/03/08/python-patterns-for-graph-traversal/
# Shows that python function parameter defaults can in fact change.
# A short example:
def a(x=[]):
x += 'b'
print x
print a.func_defaults
# ([],)
a()
# ['b']
print a.func_defaults
# (['b'],)
a()
# ['b', 'b']
print a.func_defaults
# (['b', 'b'],)
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