Make project compatible with python2.7 (GCC-380)

[tek-life]

Currently, most prebuilt cross toolchains don't support python3.6+. To make this plugin more popular, it is meaningful to support python2.7.

Please review it. Ping me freely for any suggestions.

[Lapshin]

@tek-life , thanks for contributing!

I started reviewing your changes and found that Python 2 support was dropped in GDB starting with the 13.1 release.

So, I think that in 2024, after more than four years since language dialect support ended, we must admit that everything has its end and move forward by upgrading our software. :)

[tek-life]

@tek-life , thanks for contributing!

I started reviewing your changes and found that Python 2 support was dropped in GDB starting with the 13.1 release.

So, I think that in 2024, after more than four years since language dialect support ended, we must admit that everything has its end and move forward by upgrading our software. :)

Yeah. I agree your point partially. Upgrading the software is one option. But if more python versions are supported, more engineers will get benefits. Right? 😆