No module named 'cryptography' code example

Example 1: No module named 'sklearn'

pip install scikit-learn

Example 2: from Crypto.Cipher import AES ModuleNotFoundError: No module named 'Crypto'

>> pip install pycryptodome

from Crypto.Cipher import AES  #Works

Example 3: No module named 'seaborn'

python -m pip install seaborn