`python setup.py develop` doesnt work

when installed with develop, we get the following error:

$ parallel_bilby_generation config.ini
Traceback (most recent call last):
  File "/fred/oz117/avajpeyi/.conda/envs/parallel_bilby/bin/parallel_bilby_generation", line 11, in <module>
    load_entry_point('parallel-bilby', 'console_scripts', 'parallel_bilby_generation')()
  File "/fred/oz117/avajpeyi/.conda/envs/parallel_bilby/lib/python3.8/site-packages/pkg_resources/__init__.py", line 490, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/fred/oz117/avajpeyi/.conda/envs/parallel_bilby/lib/python3.8/site-packages/pkg_resources/__init__.py", line 2862, in load_entry_point
    return ep.load()
  File "/fred/oz117/avajpeyi/.conda/envs/parallel_bilby/lib/python3.8/site-packages/pkg_resources/__init__.py", line 2462, in load
    return self.resolve()
  File "/fred/oz117/avajpeyi/.conda/envs/parallel_bilby/lib/python3.8/site-packages/pkg_resources/__init__.py", line 2468, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
ModuleNotFoundError: No module named 'parallel_bilby'

The benifit of using develop vs install is that develop makes a .egg-link file in site-packages directory which links to your project’s source code (so you can easily swithc branches etc and dont need to re-install the package).