[Cython] cygdb gdb script problem

Vitja Makarov vitja.makarov at gmail.com
Tue Mar 29 22:20:14 CEST 2011

2011/3/29 mark florisson <markflorisson88 at gmail.com>:
> On 29 March 2011 21:11, Vitja Makarov <vitja.makarov at gmail.com> wrote:
>> Running cygdb with Cython installed in the system leads to the
>> following problem:
>> vitja at vitja-laptop:~/work/cython-vitek-git/zzz$ python ../cygdb.py
>> GNU gdb (GDB) 7.2-ubuntu
>> Copyright (C) 2010 Free Software Foundation, Inc.
>> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
>> This is free software: you are free to change and redistribute it.
>> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>> and "show warranty" for details.
>> This GDB was configured as "x86_64-linux-gnu".
>> For bug reporting instructions, please see:
>> <http://www.gnu.org/software/gdb/bugs/>.
>> Traceback (most recent call last):
>>  File "<string>", line 1, in <module>
>> ImportError: No module named Debugger
>> /tmp/tmp1ZvOf9:3: Error in sourced command file:
>> Error while executing Python code.
>> (gdb)
>> So may be it's better to explicitly specify correct path to Cython
>> package in gdb script?
>> Small example patch is attached.
>> --
>> vitja.
>> _______________________________________________
>> cython-devel mailing list
>> cython-devel at python.org
>> http://mail.python.org/mailman/listinfo/cython-devel
> Hmm, when using cygdb it expects Cython to be in the path. I believe
> your traceback means that it can find Cython, but not Cython.Debugger,
> right? Are you sure you're using Python 2.6+? It doesn't work with any
> version below 2.6 as they don't use the TP_FLAGS_*_SUBCLASS tp_flags.

That's correct when cygdb is executed it's executed with right cython version,
and gdb import system version of cython

> In your patch you probably want to join() the dirname() with
> os.pardir. However, I don't think it would really solve anything,
> because if you install Cython, cygdb will be installed in e.g.
> /usr/bin, so you'd be adding / to the path.

No it will add /usr/lib to path, path is taken from Cython.Debugger.Cygdb

> If you want to run cygdb
> from the cython/bin directory, then cython should be listed in

Ok. But you may get in trouble importing system version instead of
development one.


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