Mark Florisson <markflorisso...@gmail.com> added the comment:

Indeed, I'm trying to make the code Python 2 and Python 3 (for the inferior) 
compatible, it's not really hard but indeed, the 'u' (Python 2) and 'b' (Python 
3) stuff need special casing. Python 2 compatibility was also the reason why 
the PyIntObjectPtr class was merged back. I will make a patch that's compatible 
with both Python 2 and 3 (and without any "colorful" code :)) as this would be 
most preferably I think (even if it's shipped with Python 3, users might still 
want to use it for Python 2, and it's also easier for the Cython debugger which 
wants to be compatible with 2.5+).

As for the gdb version, I have tested with 7.1 (in which case the introduced 
commands won't work as they use stuff from the 7.2 API, in which case 
test_gdb.py also skips those tests) and 7.2. I agree that the functionality 
should be left out if it cannot work properly.

Indeed, the _LoggingState redirects logging to a file and then reads the output 
after the command returns, I've been using it successfully with big amounts of 
output and I don't think there should be a problem as redirection and 
pagination should be unrelated. The good thing about _LoggingState is that it 
actually captures *all* output (and it's fully reentrant), which the 
'to_string' argument was not taking care of properly in 7.2 (it's fixed in the 
archer branch).

Indeed, gdb.get_selected_thread() is entirely broken in 7.2 (again, fixed in 
archer) but as you can see, it's not used (gdb.inferiors()[0] "works").

I'm currently looking into making stepping over faster and by extension 
stepping which we discussed earlier (I also discussed it with Tom Tromey 
previously). As you know, currently stepping over (and stepping) works with a 
"step-over loop" which might be turned into a "set a conditional breakpoint or 
watchpoint + continue" solution, which would mean a lot less context switches. 
I've not looked too serious into this matter, but I'll hope to get around to 
that soonish and I'll provide a new patch with all the corrections and 
improvements.
Another issue I'm fixing is the determination of the type of an arbitrary 
Python object, which was previously done with the Py_TPFLAGS_INT_SUBCLASS flags 
and friends. This is because they are new in 2.6 and I'd prefer to be 2.5 
compatible (again, because I'm trying to keep the Cython debugger 2.5 
compatible).

As for porting the gdb API to Python 3, I'm quite convinced that the API can be 
written in Cython, in which case it would mostly be a change in the build 
process rather than a serious code-refactoring issue. But I'll get around to 
that later...

Anyway, should I diff against the original libpython or against the original 
libpython + my previous diff?

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