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python Programming Glossary: equalityWhy is if not someobj: better than if someobj == None: in Python? http://stackoverflow.com/questions/100732/why-is-if-not-someobj-better-than-if-someobj-none-in-python False . In the second test the object is compared for equality to None . Here we are asking the object Are you equal to this.. first test with non numerical values to use the test for equality when you want to compare objects of the same nature two strings..
Why (0-6) is -6 = False? [duplicate] http://stackoverflow.com/questions/11476190/why-0-6-is-6-false
Is there a difference between `==` and `is` in python? http://stackoverflow.com/questions/132988/is-there-a-difference-between-and-is-in-python 'Yay ' # Test two. if n is 5 print 'Yay ' two tests for equality equivalent ha Does this hold true for objects where you would..
Why does comparing strings in Python using either '==' or 'is' sometimes produce a different result? http://stackoverflow.com/questions/1504717/why-does-comparing-strings-in-python-using-either-or-is-sometimes-produce share improve this question is is identity testing is equality testing. what happens in your code would be emulated in the..
Differences between isinstance() and type() in python http://stackoverflow.com/questions/1549801/differences-between-isinstance-and-type-in-python is an instance of a base class too while checking for equality of type does not it demands identity of types and rejects instances.. is good mind you it's just less bad than checking equality of types. The normal Pythonic preferred solution is almost invariably.. and before and therefore by contrast make checking type equality an even worse practice in recent Python versions than it already..
What are “first class” objects? [closed] http://stackoverflow.com/questions/245192/what-are-first-class-objects independent of any given name being comparable for equality with other entities being passable as a parameter to a procedure..
How is the 'is' keyword implemented in Python? http://stackoverflow.com/questions/2987958/how-is-the-is-keyword-implemented-in-python in Python ... the is keyword that can be used for equality in strings. s 'str' s is 'str' True s is 'st' False I tried.. should never use is on strings. is tests for identity not equality . That means Python simply compares the memory address a object..
String comparison in Python: is vs. == [duplicate] http://stackoverflow.com/questions/2988017/string-comparison-in-python-is-vs two objects with the same id. python string comparison equality share improve this question For all built in Python objects.. NaN is a counterexample. But usually identity implies equality. The converse is not true Two distinct objects can have the..
floating point equality in Python and in general http://stackoverflow.com/questions/3049101/floating-point-equality-in-python-and-in-general point equality in Python and in general I have a piece of code that behaves.. warn or error when they detect that you're checking equality of floats Should compilers support an option to replace all.. Should compilers support an option to replace all float equality checks with a 'close enough' function Do compilers already do..
check if all elements in a list are identical http://stackoverflow.com/questions/3844801/check-if-all-elements-in-a-list-are-identical list evaluate as equal to each other using the standard equality operator False otherwise. Performance of course I prefer not..
Floating point equality in python http://stackoverflow.com/questions/4028889/floating-point-equality-in-python point equality in python Is there a function to test floating point approximate.. Is there a function to test floating point approximate equality in python Something like def approx_equal a b tol return abs..
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