run --inherit-environ option does not work

[cappadokes]

After a clean install of pyperformance, run the below command:

HAHA=1 pyperformance run -f --debug-single-value --inherit-environ HAHA -b 2to3

The output received is:

[...]
[1/1] 2to3...
INFO:root:Running `$PATH_TO_VENV$/bin/python -u /usr/local/lib/python3.8/dist-packages/pyperformance-1.0.4-py3.8.egg/pyperformance/data-files/benchmarks/bm_2to3/run_benchmark.py --debug-single-value --inherit-environ =,PYPERFORMANCE_RUNID --output /tmp/tmpiq530yv4`

As you can see, the HAHA variable is not inherited by the benchmark-running process. Instead, a '=' symbol is parsed in its place.

[cappadokes]

Update:

I have found the problem to be line 256 in pyperformance/_benchmark.py. The line is part of the _resolve_restricted_opts function:

resolved.append(opt.partition('=')[-2]) 

Replacing -2 with -1 resolves the issue. I have created a relevant pull request (#140).

[agraul]

I had the same problem and came up with the same fix. I can confirm it that this works.