Downloading a file from Google Drive using PyDrive

 #!pip install Pydrive

from pydrive.auth import GoogleAuth

from pydrive.drive import GoogleDrive

from google.colab import auth 

from oauth2client.client import GoogleCredentials

auth.authenticate_user()

gauth = GoogleAuth()

gauth.credentials = GoogleCredentials.get_application_default()

drive = GoogleDrive(gauth)

#Authentication happens only once and 

# a file adc.json is created once authentication is done.

file_id = "1nBBfiZOoZToCaGsLxU3s_FRcFcg0Swkk"   #ID OF YOUR GDRIVE FILE.

#THE ID IS PART BETWEEN ..../d/   AND /view...............

# https://drive.google.com/file/d/1nBBfiZOoZToCaGsLxU3s_FRcFcg0Swkk/view?usp=sharing

downloaded = drive.CreateFile({"id": file_id})

downloaded.GetContentFile("MyFile.csv")