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ryanmark/wtf.py

Created July 10, 2015 20:44
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Why does this script throw an UnboundLocalError?
Raw
wtf.py
#!/usr/bin/env python
foo = 0
bar = {'foo': 0}
def wtf():
# Totally fine
bar['foo'] += 1
# UnboundLocalError: local variable 'foo' referenced before assignment
foo += 1
wtf()
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