py -3.7 -m pip install opencv-python

​

# To install a specific version of a package using pip:

pip install Package_name==version

​

# Example:

pip install MySQL_python==1.2.2

# install a package to a specific version of python

python<version> -m pip install <package_name>

# At the time of writing this numpy is in version 1.19.x

# This statement below will install numpy version 1.18.1

python -m pip install numpy==1.18.1

# adapted from answer given by Stack Overflow user in the source link

​

import pkg_resources

pkg_resources.require("your_package==its_version")

import your_package

<path-to-python.exe> -m pip install <PACKAGE>

pip install python==X.X.X

(tutorial-env) $ python -m pip install requests==2.6.0

Collecting requests==2.6.0

  Using cached requests-2.6.0-py2.py3-none-any.whl

Installing collected packages: requests

Successfully installed requests-2.6.0

pip install Package_name==version

​

# Example:

pip install MySQL_python==1.2.2