!pip install -U -q PyDrive
import os
from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive
from google.colab import auth
from oauth2client.client import GoogleCredentials

# 1. Authenticate and create the PyDrive client.
auth.authenticate_user()
gauth = GoogleAuth()
gauth.credentials = GoogleCredentials.get_application_default()
drive = GoogleDrive(gauth)

# choose a local (colab) directory to store the data.
local_download_path = os.path.expanduser('~/data')
try:
  os.makedirs(local_download_path)
except: pass

# 2. Auto-iterate using the query syntax
#    https://developers.google.com/drive/v2/web/search-parameters
file_list = drive.ListFile(
    {'q': "'1txNxCjMtbfsxUrvlR5kNCr0JWm-hm7mB' in parents"}).GetList()
mimetypes = {
        # Drive Document files as PDF
        'application/vnd.google-apps.document': 'application/pdf',

        # Drive Sheets files as MS Excel files.
        'application/vnd.google-apps.spreadsheet': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'

    # see https://developers.google.com/drive/v3/web/mime-types
    }
for f in file_list:
  # 3. Create & download by id.
  print('title: %s, id: %s' % (f['title'], f['id']))
  fname = os.path.join(local_download_path, f['title'])
  print('downloading to {}'.format(fname))
  f_ = drive.CreateFile({'id': f['id']})
  if f['mimeType'] in mimetypes:
    download_mimetype = mimetypes[f['mimeType']]
    f.GetContentFile(fname, mimetype=download_mimetype)
    f.GetContentFile(fname, mimetype=download_mimetype)
  else:
    f_.GetContentFile(fname)