Groups > comp.lang.python > #20187

How can I catch misnamed variables?

Path	csiph.com!x330-a1.tempe.blueboxinc.net!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!news.glorb.com!xmission!newsswitch.lcs.mit.edu!bloom-beacon.mit.edu!panix!gordon
From	John Gordon <gordon@panix.com>
Newsgroups	comp.lang.python
Subject	How can I catch misnamed variables?
Date	Fri, 10 Feb 2012 21:06:58 +0000 (UTC)
Organization	PANIX Public Access Internet and UNIX, NYC
Lines	27
Message-ID	<jh40ti$t3i$1@reader1.panix.com> (permalink)
NNTP-Posting-Host	panix2.panix.com
X-Trace	reader1.panix.com 1328908018 29810 166.84.1.2 (10 Feb 2012 21:06:58 GMT)
X-Complaints-To	abuse@panix.com
NNTP-Posting-Date	Fri, 10 Feb 2012 21:06:58 +0000 (UTC)
User-Agent	nn/6.7.3
Xref	x330-a1.tempe.blueboxinc.net comp.lang.python:20187

Show key headers only | View raw

Recently I was been bitten by some stupid errors in my code, and I'm
wondering if there's a simple way to catch them.

One error was of the form:

  my_object.some_function()

.. when I hadn't declared an object named "my_object".

The other error was similar:

  x = my_module.CONSTANT

.. when I hadn't imported my_module.

Of course both of these errors were deep inside a long-running function
call, so it took a while for them to crop up.

Is there an automated way to catch errors like these?  I'm using the
compileall module to build my program and it does catch some errors
such as incorrect indentation, but not errors like the above.

-- 
John Gordon                   A is for Amy, who fell down the stairs
gordon@panix.com              B is for Basil, assaulted by bears
                                -- Edward Gorey, "The Gashlycrumb Tinies"

Back to comp.lang.python | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

How can I catch misnamed variables? John Gordon <gordon@panix.com> - 2012-02-10 21:06 +0000
  Re: How can I catch misnamed variables? Arnaud Delobelle <arnodel@gmail.com> - 2012-02-10 21:17 +0000
  Re: How can I catch misnamed variables? Kev Dwyer <kevin.p.dwyer@gmail.com> - 2012-02-10 21:22 +0000
  Re: How can I catch misnamed variables? Ben Finney <ben+python@benfinney.id.au> - 2012-02-11 08:26 +1100
    OT (waaaayyyyyyyyy off-topic) [was Re: How can I catch misnamed variables?] Ethan Furman <ethan@stoneleaf.us> - 2012-02-10 13:56 -0800
      Re: OT (waaaayyyyyyyyy off-topic) Ben Finney <ben+python@benfinney.id.au> - 2012-02-11 09:45 +1100
  Re: How can I catch misnamed variables? Christian Heimes <lists@cheimes.de> - 2012-02-11 00:21 +0100

csiph-web