how to read drive files into google colab code example

Example 1: google colab upload a file

from google.colab import files
files.upload()

Example 2: read file from google drive colab

downloaded = drive.CreateFile({'id':"your_file_ID"})   # replace the id with id of file you want to access
downloaded.GetContentFile('your_file_name.csv')        # replace the file name with your file