[Python-projects] [patch] Handling non-existing files

[V.Chukharev]

Hi,

If file 'tttt' does not exist, 'pylint tttt' gives the following.

$ pylint tttt
No config file found, using default configuration
Traceback (most recent call last):
  File "/usr/local/bin/pylint", line 4, in <module>
    lint.Run(sys.argv[1:])
  File "/usr/local/lib/python2.5/site-packages/pylint/lint.py", line 890, in __init__
    linter.check(args)
  File "/usr/local/lib/python2.5/site-packages/pylint/lint.py", line 457, in check
    filemods = self.expand_files(files_or_modules)
  File "/usr/local/lib/python2.5/site-packages/pylint/lint.py", line 517, in expand_files
    self.set_current_module(modname)
  File "/usr/local/lib/python2.5/site-packages/pylint/lint.py", line 543, in set_current_module
    self.stats['by_module'][modname] = {}
TypeError: 'NoneType' object is unsubscriptable
$ pylint --version
No config file found, using default configuration
pylint 0.15.1, 
astng 0.17.3, common 0.35.0
Python 2.5.2 (r252:60911, Sep  8 2008, 21:21:48) 
[GCC 4.2.1 20070719  [FreeBSD]]


With the attached one-line patch applied, a reasonable error message is given:

$ pylint tttt
No config file found, using default configuration
************* Module tttt
F:  1: No module named tttt

Best regards,
-- 
V. Chukharev
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