Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Newsgroups: comp.lang.python
Subject: Re: Spurious issue in CPython 2.7.5
Date: Tue, 24 May 2016 20:19:47 -0400
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Xref: csiph.com comp.lang.python:109095

On Tue, 24 May 2016 12:22:30 +0200 (CEST), "thomas povtal.org"
<thomas@povtal.org> declaimed the following:

>   Hi,
>
>   Please excuse me if this is not the right place, but I have some issues
>   with CPython on a NUMA machine.
>
>   1: I get "RuntimeWarning: tp_compare didn't return -1 or -2 for
>   exception". It's a line like:
>
>   "if Foo = False:" where Foo is a global variable (global Foo).
>
	Well, the first problem is that you can not do assignments there...

	Comparison would be

		if Foo == False:

OR

		if not Foo:

(Python considers: 0, False, [], {}, "" all to be "false" so a comparison
to the constant False is seldom needed... And when it is, it may be better
to use identity check
		if Foo is False:
)

-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/