If that were so, Pythonistas could never write a recursive function!
No, presumably at the writing of the edition of _Learning Python_ that
he is reading, Python did not have nested scopes in the language, yet.
One could always write a recursive function provided it was at the
top-level of
A example in learning Python by Mark Lutz and David Ascher
about function scope
example like this:
def outer(x):
def inner(i):
print i,
if i: inner(i-1)
inner(x)
outer(3)
Here supposely, it should report error, because the function inner
cannot see itself since inner
Learning Python wrote:
A example in learning Python by Mark Lutz and David Ascher
about function scope
example like this:
def outer(x):
def inner(i):
print i,
if i: inner(i-1)
inner(x)
outer(3)
Here supposely, it should report error, because the function
This is not reproducible under either Python 2.3.4 (UNIX), Python 2.4.1
(UNIX) or Python 2.4.1 (Windows). If you still need help, we need to
know precisely what you're doing.
= scope_test.py =
#!/usr/bin/env python
#
# (insert his code, verbatim...)
#
if __name__=='__main__':
Learning Python wrote:
def outer(x):
def inner(i):
print i,
if i: inner(i-1)
inner(x)
outer(3)
Here supposely, it should report error, because the function inner
cannot see itself since inner is only in local namespace of outer.
There is no error. the
infidel wrote:
Learning Python wrote:
A example in learning Python by Mark Lutz and David Ascher
about function scope
example like this:
def outer(x):
def inner(i):
print i,
if i: inner(i-1)
inner(x)
outer(3)
Here supposely, it should report error, because the
Thanks all for replying.
I finally know what's going on.
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