Code would explain this much better :)
def a():
x=0
def b(z=x):
print("X: %d, Z: %d" % (x,z,))
x=5
b()
Result:
X: 5, Z: 0
What's going on here?
(Ok, now I've figured it out)
Ok, the answer from the Python docs is:
Default parameter values are evaluated when the function definition is executed. This means that the expression is evaluated once, when the function is defined, and that the same “pre-computed” value is used for each call.
Fair enough.
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