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Fix '__bool__' method (#735)

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The method returns the truth when the stack is empty
This commit is contained in:
Maxim Semenyuk
2019-03-10 07:10:29 +05:00
committed by Ashwek Swamy
parent 2c67f6161c
commit 8e67ac3b76
1 changed files with 1 additions and 1 deletions
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data_structures/stacks/stack.py
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@@ -17,7 +17,7 @@ class Stack(object):
self.limit = limit self.limit = limit
def __bool__(self): def __bool__(self):
return not bool(self.stack) return bool(self.stack)
def __str__(self): def __str__(self):
return str(self.stack) return str(self.stack)