from google.colab import files code example

Example 1: colab mount drive

from google.colab import drive
drive.mount('/content/drive')

#Optional: move to the desired location:
%cd drive/My Drive/DIRECTORY_IN_YOUR_DRIVE

Example 2: upload file in colab

from google.colab import files
files.upload()

Example 3: google colab upload a file

from google.colab import files
files.upload()

Example 4: read file from google drive colab

from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive
from google.colab import auth
from oauth2client.client import GoogleCredentials

Example 5: read file from google drive colab

auth.authenticate_user()
gauth = GoogleAuth()
gauth.credentials = GoogleCredentials.get_application_default()
drive = GoogleDrive(gauth)