python if bool
You want to use logical and (not the & , which is a bitwise AND operator in Python): if thing2 == 3 and thing1: print "hi". Because you have used & , the error has popped up, saying: TypeError: unsupported operand type(s) for BitAnd: &#, The following values in Python are false in the context of if and other logical contexts: False; None; numeric values equal to 0, such as 0 , 0.0 , -0.0; empty strings: '' and u''; empty containers (such as lists, tuples and dictionaries)
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 python if bool 相關參考資料
python - Syntax for an If statement using a boolean - Stack Overflow
You can change the value of a bool all you want. As for an if: if randombool == True: works, but you can also use: if randombool: If you want to test whether something is false you can use: if random... https://stackoverflow.com Using a Boolean in an If-Statement in Python - Stack Overflow
You want to use logical and (not the & , which is a bitwise AND operator in Python): if thing2 == 3 and thing1: print "hi". Because you have used & , the error has popped up, saying... https://stackoverflow.com Python booleans - if x:, vs if x == True, vs if x is True - Stack ...
The following values in Python are false in the context of if and other logical contexts: False; None; numeric values equal to 0, such as 0 , 0.0 , -0.0; empty strings: '' and u''; em... https://stackoverflow.com How to set and check a boolean flag in python - Stack Overflow
You're looking for True and False (note the capitals). Also the more pythonic way to write the last line is if not loggedDocument instead of if loggedDocument == False . Edit: And BTW, the printl... https://stackoverflow.com if statement - python. if var == False - Stack Overflow
up vote 0 down vote. I think what you are looking for is the 'not' operator? if not var. Reference page: http://www.tutorialspoint.com/python/logical_operators_example.htm ... https://stackoverflow.com boolean - 'True' and 'False' in Python - Stack Overflow
This does not mean that any of those values are identical to True or False, or even equal to True or False. The expression '/bla/bla/bla' will be treated as true where a Boolean expression is... https://stackoverflow.com python (bool) ? then : else syntax? - Stack Overflow
You can use (x if cond else y) , e.g. >>> x = 0 >>> y = 1 >>> print("a" if x < y else "b") a. That will work will lambda function too. https://stackoverflow.com In Python how should I test if a variable is None, True or False ...
Don't fear the Exception! Having your program just log and continue is as easy as: try: result = simulate(open("myfile")) except SimulationException as sim_exc: print "error parsin... https://stackoverflow.com boolean - python how to "negate" value : if true return false, if ...
Use the not boolean operator: nyval = not myval. not returns a boolean value ( True or False ): >>> not 1 False >>> not 0 True. If you must have an integer, cast it back: nyval = in... https://stackoverflow.com CodingBat Python If Boolean
Python If Boolean Logic. In Python, use == to compare two things for equality -- works for int values, strings, lists ... anything. Python supports all the standard operators to compare two values: ==... http://codingbat.com |