how to install pip packages to databricks notebook code example

Example: isntall packages to databricks

dbutils.library.installPyPI("torch")
dbutils.library.installPyPI("scikit-learn", version="1.19.1")
dbutils.library.installPyPI("azureml-sdk", extras="databricks")
dbutils.library.restartPython()  # Removes Python state, but some libraries might not work without calling this function