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python unbound variable

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Flyhouse_Squarewheel answered on November 9, 2020 Popularity 9/10 Helpfulness 1/10

answer python unbound variable

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python unbound variable

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-1

>>> foo = None
>>> def bar():
...     global foo
...     if False:
...         foo = 'spam'
...     print foo
... 
>>> bar()
None

# Python needs to know in the beginning of the function if you plan on using the local or the
# global version of the variable. Remember that you can't declare variables in python. You can
# only bind them. Read more in the naming and binding section of the python reference documentation
# https://docs.python.org/2.3/ref/naming.html

Popularity 9/10 Helpfulness 1/10 Language python

Source: stackoverflow.com

Tags: python

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Contributed on Nov 09 2020

Flyhouse_Squarewheel

0 Answers Avg Quality 2/10

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# in the opposite exaple
# it makes an error 
# unbound var
if True:
  me = "hi"
else:
  me = 0
# thats bec py thinks that this var might be undefiend
# u might repair that simply by defining the var befor the block of code
me = None
if True:
  me = "hi"
else:
  me = 0

Popularity 8/10 Helpfulness 4/10 Language python

Source: Grepper

Tags: python

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Contributed on Feb 10 2023

mostafa ghobashy

0 Answers Avg Quality 2/10

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