venv not working when installed outside benchkit

[DIvanov503]

When

benchkit/scripts/install_venv.sh
. venv/bin/activate

is done outside the benchkit directory, campaign scripts stop working:

Traceback (most recent call last):
  File "/home/dmitry/lotto/demos/benchmarks/suite.py", line 8, in <module>
    from benchkit.campaign import CampaignCartesianProduct, CampaignSuite
  File "/home/dmitry/lotto/demos/benchmarks/benchkit/benchkit/campaign.py", line 20, in <module>
    from benchkit.lwchart import (
  File "/home/dmitry/lotto/demos/benchmarks/benchkit/benchkit/lwchart.py", line 48, in <module>
    class ChartProcessor(Protocol):
  File "/home/dmitry/lotto/demos/benchmarks/benchkit/benchkit/lwchart.py", line 55, in ChartProcessor
    chart: axes.Axes | sns.axisgrid.FacetGrid,
           ^^^^
NameError: name 'axes' is not defined

[aaronbog]

I am unable to reproduce this.

It was either fixed in #215 or the correct requirements were not set up to use graphing, resulting in this error.

[DIvanov503]

@aaronbog I think the issue is that install_venv.sh expects requirements.txt to be present. E.g. When I

benchkit/scripts/install_venv.sh
. venv/bin/activate
cd benchkit/tutorials/libvsync-locks/microbench/
mkdir deps
cd deps
git clone https://github.com/open-s4c/libvsync.git
cd ../..
./campaign_locks.py

I now get

Traceback (most recent call last):
  File "/home/dmitry/benchkit/tutorials/libvsync-locks/./campaign_locks.py", line 8, in <module>
    from vsyncmicrobench import LockMicroBench
ModuleNotFoundError: No module named 'vsyncmicrobench'

I believe that back in February the issue was that matplotlib from benchkit/tutorials/libvsync-locks/requirements.txt wasn't installed.

It would be nice if benchkit had its own requirements.txt covering its functionality such that one could set up venv in a separate directory. E.g., I submodule benchkit in a C project and I don't want files to be generated anywhere except its build directory.