This bug has been reported as http://bugs.python.org/issue18307 over a month ago Аnd I've found out the root cause of this issue so far. Unit-test and patch are suggested. Without patch test fails, with patch - passed.
On Wed, Jun 26, 2013 at 12:11 AM, Vitaly Murashev <vitaly.muras...@gmail.com > wrote: > Dear Python developers community, > > Recently I found out that it not possible to debug python code if it > is a part of zip-module. > Python version being used is 3.3.0 > > Well known GUI debuggers like Eclipse+PyDev or PyCharm are unable to > start debugging and give the following warning: > --- > pydev debugger: CRITICAL WARNING: This version of python seems to be > incorrectly compiled (internal generated filenames are not absolute) > pydev debugger: The debugger may still function, but it will work > slower and may miss breakpoints. > --- > So I started my own investigation of this issue and results are the > following. > > At first I took traditional python debugger 'pdb' to analyze how it > behaves during debugging of zipped module. > 'pdb' showed me some backtaces and filename part for stack entries > looks malformed. > I expected something like > 'full-path-to-zip-dir/my_zipped_module.zip/subdir/test_module.py' > but realy it looks like 'full-path-to-current-dir/subdir/test_module.py' > > Source code in pdb.py and bdb.py (which one are a part of python > stdlib) gave me the answer why it happens. > > The root cause are inside Bdb.format_stack_entry() + Bdb.canonic() > > Please take a look at the following line inside 'format_stack_entry' > method: > > filename = self.canonic(frame.f_code.co_filename) > > For zipped module variable 'frame.f_code.co_filename' holds _relative_ > file path started from the root of zip archive like > 'subdir/test_module.py' > And as result Bdb.canonic() method gives what we have - > 'full-path-to-current-dir/subdir/test_module.py' > --- > So my final question. > Could anyone confirm that it is a bug in python core subsystem which > one is responsible for loading zipped modules, > or something is wrong with my zipped module ? > > If it is a bug could you please submit it into official python bugtracker ? > I never did it before and afraid to do something wrong. > > Thanks, > Vitaly Murashev >
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