[New-bugs-announce] [issue33572] False/True as dictionary keys treated as integers

[Janusz Harkot]

New submission from Janusz Harkot <janusz.harkot at gmail.com>:

using boolean (True/False) as dictionary keys, coerce them to integers - is this behavior documented somewhere?

I know that asking to fix this is not easy fix, but shouldn't this be highlighted everywhere with red flags and warnings, so people will know that this is expected?


Python 3.6.5 (default, Mar 29 2018, 03:28:50)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> dta = {False: 'false', True: 'true', 0: 'zero', 1: 'one'}
>>> print(dta[False])
zero
>>>

----------
components: Interpreter Core
messages: 317032
nosy: Janusz Harkot
priority: normal
severity: normal
status: open
title: False/True as dictionary keys treated as integers
type: behavior
versions: Python 3.6

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33572>
_______________________________________