Setting up

• go to python.org and download the latest version
• install Python, making sure that "add python to environment variables" is checked when you custom install Python
• to check your Python version
• at the Start window, type 'cmd'
• at the prompt, type 'python --version'
• to upgrade your pip
• at the Start window, type 'cmd'
• at the prompt, type 'python -m pip install --upgrade pip'
• to install data analysis packages, at the cmd prompt:
• type 'pip install pandas'
• type 'pip install numpy'
• type 'pip install matplotlib'
• to see which packages are installed, at the cmd prompt type 'pip list'.
• type 'IDLE' at the Start window
• CTRL+N to open a new file
• type in the module, press F5 to run and press ENTER to say yes to saving the file
• to find out where the packages are installed, run the following python code:

import site;
       print(site.getsitepackages())

• to see if a particular package is installed:
  • at the cmd prompt type 'pip show package_name'
  • or use the following code in the IDLE window:

    try:
            import package_name
    
            print("Package is installed.")
    except ImportError:
            print("Package is not installed.")

  • or use the following code in the IDLE window:

    try:
            from importlib.metadata import distribution, PackageNotFoundError
    
            package = distribution("package_name")
            print(f"Package is installed. Package version: {package.version}")
    except PackageNotFoundError:
            print("Package is not installed.")

    (Note: pkg_resources is deprecated)
• to reinstall 'setuptools' and 'pip', at the cmd prompt type 'python -m pip install --upgrade setuptools pip'
• to uninstall a package, at the cmd prompt type 'pip uninstall package_name'