Yes, that is my specific issue. I have a C DLL invoked by a python wrapper module using ctypes that has at least one issue (and likely more than one) so I need to be able to start a python test script and debug the lower-level DLL code. The C test programs for the lower-level C DLL all seen to succeed, so I am suspecting something is wrong in the wrapper code.
If anyone has or knows of step-by-step instructions on how to set that debug environment up and start the outer-level script with debug breakpoints in the DLL I would greatly appreciate it. I'm also doing my own searches for tutorials on debugging python with VS20xx, but have not read/viewed one of those yet.
I have in fact been able to re-compile cpython and the lower-level DLL using the VS2019 command line tools, but so far my only debugging capability has been to insert fprintf's to a trace file in the lower-level DLL code (or macros that result in such output) into the C code where I *think* the problem is happening, but I have not been able to nail it down yet. Being able to start the process from the IDE and catch any C errors when they happen would be ideal.
My environment is Win10-64 and python 3.8.5.
> -----Original Message-----
> From: Paul Moore <firstname.lastname@example.org>
> Sent: Wednesday, December 16, 2020 2:20 PM
> To: email@example.com
> Cc: Python Dev <firstname.lastname@example.org>
> Subject: Re: [Python-Dev] Advice / RTFM needed for tool setup to participate in
> python development from a Windows host
> Personally, I just have Visual Studio and VS Code as my text editor. I
> rarely use Visual Studio directly, though, I mostly use the
> `build.bat` and similar scripts in the `PCBuild` directory.
> Having said that, I'm not doing anything like debugging problems with
> DLLs, for which I imagine a decent C development environment is
> needed. You don't have much choice other than Visual Studio there (no
> other compiler is supported on Windows), though, so you'll probably
> need to learn that.
> On Wed, 16 Dec 2020 at 18:28, <email@example.com> wrote:
> > Hello,
> > I hope this is the correct place to ask this question. I have a desire to
> > participate in python development in a particular area from my Windows host
> > machine, but I am not finding any concise listing of the tool setup needed
> > to fully participate, nor any detailed guidance on how to proceed when
> > underlying code debugging is necessary.
> > I do know that some version of the MS VS20xx suite is necessary to begin.
> > My initial attempts using the VS2019 Community Edition have been less than
> > successful when it comes to debugging an underlying C library component
> > the starting program is python because I have not figured out how to use the
> > VS2019 environment to do that.
> > So I would appreciate any RTFM / URL that can guide me in starting to
> > participate, especially for guidance on debugging procedures for underlying
> > C components when the initial program is a python script.
> > I have read most of the "Python Developers Guide" material, but there is not
> > any Window-specific tooling information that I have seen there yet. What
> > other tooling do I need besides a VS20xx environment?
> > I do have good experience in C programming, but not much in using VS20xx
> > IDE's.
> > TIA for your gentle guidance in curing my ignorance.
> > Peter
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