You may want to read:
https://docs.python.org/3/faq/programming.html?highlight=global#why-am-i-getting-an-unboundlocalerror-when-the-variable-has-a-value
from the Python docs Programming FAQ section.
It explains your problem pretty well.
As others have hinted at, always provide concrete Python error messages
and tracebacks instead of vague descriptions.
Best,
Wolfgang
On 11/10/2014 12:07 PM, Mok-Kong Shen wrote:
I don't understand the following phenomenon. Could someone kindly
explain it? Thanks in advance.
M. K. Shen
-------------------------------------------------
count=5
def test():
print(count)
if count==5:
count+=0 ### Error message if this line is active, otherwise ok.
print(count)
return
test()
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