def aa():
global b
b=b+1
print b
b=1
aa()
The above code runs well in python shell.
However I have a problem as follows.
new a file named test.py
------------------------------------------------------------------------
def aa():
global b
b=b+1
print b
-------------------------------------------------------------------------
Then in python shell,
from test import *
b=1
aa()
The error message is :
Traceback (most recent call last):
File "<interactive input>", line 1, in ?
File "test.py", line 3, in aa
b=b+1
NameError: global name 'b' is not defined
Why this happens? Please do me a favor.
Thanks in advance
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