New submission from Rocco Santoro <rojorouge...@hotmail.com>:
Hi all Why the identity operator and '==' are both applied to the type (see above)? Is it not convenient to distinguish them? I mean the identity operator applied to the type and '==' applied to the outcome. Thanks for the attention Best regards Rocco Santoro Python 3.7.2 (tags/v3.7.2:9a3ffc0492, Dec 23 2018, 23:09:28) [MSC v.1916 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license()" for more information. >>> import math >>> x = math.log(10000000) >>> y = math.log(10) >>> print(x/y) == x/y 7.0 False >>> print(math.log(10000000)/math.log(10)) == math.log(10000000)/math.log(10) 7.0 False >>> x = math.sin(32) >>> y = math.cos(41) >>> print(y/x) == y/x -1.7905177807148493 False >>> x = math.pi >>> y = math.tau >>> x/y == print(x/y) 0.5 False >>> x = 153 >>> y = 245 >>> print(x/y) == x/y 0.6244897959183674 False >>> print(x+y) == x + y 398 False >>> print(x*y) == x*y 37485 False >>> s1 = 'Hello, ' >>> s2 = 'how are you?' >>> print(s1 + s2) == s1 + s2 Hello, how are you? False >>> print(s1 + s2) is s1 + s2 Hello, how are you? False >>> type(print(s1 + s2)) Hello, how are you? <class 'NoneType'> >>> type(s1 + s2) <class 'str'> >>> type(print(y/x)) 1.6013071895424837 <class 'NoneType'> >>> type(x/y) <class 'float'> ---------- assignee: terry.reedy components: IDLE messages: 339441 nosy: roccosan, terry.reedy priority: normal severity: normal status: open title: identity operator type: behavior versions: Python 3.7 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue36524> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
