TypeError, due to definition of __call__ method through Proxy class

[pylint-bot]

Originally reported by: BitBucket: dirkbaechle, GitHub: @dirkbaechle?

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Hi there,

the attached script BuilderTests.py throws a TypeError

#!python

  TypeError: '_Yes' object is not iterable

when run through pylint (see attached issue.log for the full output), while the normal invocation with "python BuilderTests.py" shows the expected results.

Output of "pylint --version" is (installed from latest sources):

#!python

  No config file found, using default configuration
  pylint 1.1.0, 
  astroid 1.0.1, common 0.61.0
  Python 2.7.3 (default, Sep 26 2013, 20:03:06) 
  [GCC 4.6.3]

The given setup of classes and methods has a practical application, it's used in several unit tests for the build system SCons (www.scons.org).

Best regards,

Dirk

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• Bitbucket: https://bitbucket.org/logilab/astroid/issue/17

[pylint-bot]

Original comment by Sylvain Thénault (BitBucket: sthenault, GitHub: @sthenault?):

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fix crash when class has some call method that is not inferable. Closes #17