how to check installed packages in virtualenv code example
Example 1: python venv usage
python3 -m venv /path/to/new/virtual/environment
Example 2: python venv
python3 -m venv /path/to/new/virtual/environment
python3 -m venv /path/to/new/virtual/environment
python3 -m venv /path/to/new/virtual/environment