[Python-bugs-list] [ python-Bugs-786314 ] Wrong class name after using import cStringIO as StringIO

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Bugs item #786314, was opened at 2003-08-10 18:21
Message generated for change (Tracker Item Submitted) made by Item Submitter
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https://sourceforge.net/tracker/?func=detail&atid=105470&aid=786314&group_id=5470

Category: Python Interpreter Core
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Stefan Schwarzer (sschwarzer)
Assigned to: Nobody/Anonymous (nobody)
Summary: Wrong class name after using  import cStringIO as StringIO

Initial Comment:
Try this:

Python 2.3 (#1, Aug  6 2003, 21:21:10) 
[GCC 3.2.2 [FreeBSD] 20030205 (release)] on freebsd5
Type "help", "copyright", "credits" or "license" for
more information.
>>> import cStringIO as StringIO
>>> obj = StringIO.StringIO()
>>> obj.spam
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
AttributeError: 'cStringIO.StringO' object has no
attribute 'spam'
>>> 

Note that the module/class name in the error message
misses an "I". In a unit test of one of my programs I got

AttributeError: 'cStringIO.StringI' object has no
attribute 'mode'

Here, the trailing "O" is missing instead of the "I".

Compare this with

Python 2.3 (#1, Aug  6 2003, 21:21:10) 
[GCC 3.2.2 [FreeBSD] 20030205 (release)] on freebsd5
Type "help", "copyright", "credits" or "license" for
more information.
>>> import StringIO as cStringIO
>>> obj = cStringIO.StringIO()
>>> obj.spam
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
AttributeError: StringIO instance has no attribute 'spam'

Surprisingly, the class name has all letters, but the
module name isn't there, and the single quotation marks
are missing.

The bug isn't a bad problem, but perhaps it manifests
in other places where it causes more harm.

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