| Deutsch English Français Italiano |
|
<ast-20240110203859@ram.dialup.fu-berlin.de> View for Bookmarking (what is this?) Look up another Usenet article |
Path: eternal-september.org!news.eternal-september.org!feeder3.eternal-september.org!fu-berlin.de!uni-berlin.de!not-for-mail
From: ram@zedat.fu-berlin.de (Stefan Ram)
Newsgroups: comp.lang.python
Subject: Re: extend behaviour of assignment operator
Date: 10 Jan 2024 19:40:49 GMT
Organization: Stefan Ram
Lines: 25
Expires: 1 Dec 2024 11:59:58 GMT
Message-ID: <ast-20240110203859@ram.dialup.fu-berlin.de>
References: <mailman.1.1704895573.15798.python-list@python.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-Trace: news.uni-berlin.de +Pf7wNw/likkiD+6EA6T6wFVVlKbjly4xtrKt6iZZmAPX7
Cancel-Lock: sha1:5mbNTkq1fsL6LI0qgVzSQ83aoMI= sha256:adftsrYxZ5bpmhBcwzaSanHH1mK5DQ7DLVSUYYLXFOs=
X-Copyright: (C) Copyright 2024 Stefan Ram. All rights reserved.
Distribution through any means other than regular usenet
channels is forbidden. It is forbidden to publish this
article in the Web, to change URIs of this article into links,
and to transfer the body without this notice, but quotations
of parts in other Usenet posts are allowed.
X-No-Archive: Yes
Archive: no
X-No-Archive-Readme: "X-No-Archive" is set, because this prevents some
services to mirror the article in the web. But the article may
be kept on a Usenet archive server with only NNTP access.
X-No-Html: yes
Content-Language: en-US
Accept-Language: de-DE-1901, en-US, it, fr-FR
Guenther Sohler <guenther.sohler@gmail.com> writes:
>i'd like to extend the behaviour of the assignment operator
The following attempt is just a proof of concept, as it will
not handle properly all possible code. To do something similar
in a more general way, use "import ast", parse the code into
an AST and then search the AST for assignements and insert
code to change the name attribute after them.
import re
class thing: pass # all things pass
code = r'''
a = thing()
print( a.name )
b = a
print( b.name )
'''
code = \
re.sub\
( r'((?:^|\n)(\s*)([\w_]+)\s*=.*(\n|$))', r'\1\2\3.name="\3"\n', code )
exec( code )