How to install specific package version with pip ?

To install a specific version of a Python package using pip, use the following command format:

pip install package_name==version_number

Examples:

1. Install an exact version:

   pip install requests==2.25.1

2. Version ranges:

• Minimum version:
  bash pip install "requests>=2.25.0"
• Maximum version:
  bash pip install "requests<=2.26.0"
• Range between versions:
  bash pip install "requests>=2.25.0,<3.0.0"

2. Compatible releases (~=):
   Allows updates within the same major/minor version (e.g., ~=2.25.0 means >=2.25.0 and <2.26.0):

   pip install "requests~=2.25.0"

4. Force reinstallation (if the package is already installed):

   pip install --force-reinstall requests==2.25.1

5. Install from a Git repository, branch, or tag:

   pip install git+https://github.com/user/repo.git@v1.2.3

6. Install from a .whl (wheel) file or URL:

   pip install https://example.com/packages/package-1.0.4-py3-none-any.whl

7. Using a requirements.txt file:
   Add the package and version to a file (e.g., requirements.txt):

   requests==2.25.1
   numpy>=1.20.0

Then run:

   pip install -r requirements.txt

Notes:

• Ensure the version is available on PyPI or the specified source.
• Use pip search package_name or check PyPI to verify available versions.
• For pre-release versions, include --pre:

  pip install --pre package_name==2.0.0rc1