Fix error with pip _get_installed_distributions

[Louis-Dupont]

What

Fixing an issue that many people faced, including me, due to using an internal pip function

  File "/home/louis.dupont/PycharmProjects/super-gradients/src/super_gradients/training/sg_trainer/sg_trainer.py", line 14, in <module>
    from piptools.scripts.sync import _get_installed_distributions
  File "/home/louis.dupont/.conda/envs/louis-dev/lib/python3.9/site-packages/piptools/scripts/sync.py", line 16, in <module>
    from .. import sync
  File "/home/louis.dupont/.conda/envs/louis-dev/lib/python3.9/site-packages/piptools/sync.py", line 11, in <module>
    from pip._internal.commands.freeze import DEV_PKGS
ImportError: cannot import name 'DEV_PKGS' from 'pip._internal.commands.freeze' (/home/louis.dupont/.conda/envs/louis-dev/lib/python3.9/site-packages/pip/_internal/commands/freeze.py)

Associated issue

#1459

Solution

replacing _get_installed_distributions with a custom function get_installed_packages that uses pkg_resources instead.

At the same time, this new function allows us to have a dictionary of (lib -> version) which is better than a list (see below)

Before

['super-gradients 3.0.7+master',
 'widgetsnbextension 3.6.1',
 'webencodings 0.5.1',
 'wandb 0.13.1',
 'urllib3 1.26.11',
 'traitlets 5.3.0',
 'tornado 6.2',
 'tinycss2 1.1.1',
 'terminado 0.15.0',
 'stack-data 0.3.0',
 'soupsieve 2.3.2.post1',
 'smmap 5.0.0',
 'shortuuid 1.0.9',
 'setproctitle 1.3.2',
 'sentry-sdk 1.9.4',
 'Send2Trash 1.8.0',
 'scitokens 1.7.0',

After

{
    "super-gradients": "3.0.7+master",
    "pyzmq": "23.2.0",
    "argon2-cffi": "21.3.0",
    "argon2-cffi-bindings": "21.2.0",
    "ipython": "8.4.0",
    "ipywidgets": "7.7.1",
    "jupyter-client": "7.3.4",
    "ipykernel": "6.15.1",
    "nbconvert": "6.5.0",
    "notebook": "6.4.12",
    "jupyter-console": "6.4.4",
    "tornado": "6.2",
    "nbformat": "5.4.0",
    "qtconsole": "5.3.1",
}

[BloodAxe]

LGTM