[issue10342] trace module cannot produce coverage reports for zipped modules

[Alexander Belopolsky]

New submission from Alexander Belopolsky <belopolsky at users.sourceforge.net>:

Please run attached zip archive as a python script.  Note that the problem is not specific for using __main__.py - any module that comes from a zip archive or loaded by a custom loader would show the same bug. 

$ unzip -l test.zip 
Archive:  test.zip
  Length     Date   Time    Name
 --------    ----   ----    ----
       79  10-24-08 18:26   __main__.py
 --------                   -------
       79                   1 file
$ $ cat __main__.py
from trace import Trace

def traced(flag):
    if flag:
        return 1
    else:
        return 2

tracer = Trace()
tracer.runfunc(traced, False)
results = tracer.results()
results.write_results(coverdir='.')

$ python testtrace.zip 
 --- modulename: __main__, funcname: traced
Not printing coverage data for 'testtrace.zip/__main__.py': [Errno 20] Not a directory: 'testtrace.zip/__main__.py'
__main__.py(4): __main__.py(7): $

----------
assignee: belopolsky
components: Library (Lib)
files: testtrace.zip
messages: 120626
nosy: belopolsky, haypo
priority: normal
severity: normal
stage: unit test needed
status: open
title: trace module cannot produce coverage reports for zipped modules
type: behavior
versions: Python 3.2
Added file: http://bugs.python.org/file19522/testtrace.zip

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue10342>
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