List all files in google drive. Google drive need special authorization process. 

# -*- coding: utf8 -*-
from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive
from googleapiclient import errors
from googleapiclient.http import MediaFileUpload

def insert_file(service, title, description, parent_id, mime_type, filename):
    """Insert new file.

    Args:
      service: Drive API service instance.
      title: Title of the file to insert, including the extension.
      description: Description of the file to insert.
      parent_id: Parent folder's ID.
      mime_type: MIME type of the file to insert.
      filename: Filename of the file to insert.
    Returns:
      Inserted file metadata if successful, None otherwise.
    """
    media_body = MediaFileUpload(filename, mimetype=mime_type, resumable=True)
    body = {
        'title': title,
        'description': description,
        'mimeType': mime_type
    }
    # Set the parent folder.
    if parent_id:
        body['parents'] = [{'id': parent_id}]

    try:
        file = service.files().insert(
            body=body,
            media_body=media_body).execute()

        # Uncomment the following line to print the File ID
        # print 'File ID: %s' % file['id']

        return file
    except errors.HttpError, error:
        print 'An error occured: %s' % error
        return None

gauth = GoogleAuth()
gauth.LoadCredentialsFile("mycreds.txt")
if gauth.credentials is None:
    gauth.LocalWebserverAuth()
elif gauth.access_token_expired:
    gauth.Refresh()
else:
    gauth.Authorize()
gauth.SaveCredentialsFile("mycreds.txt")
drive = GoogleDrive(gauth)

#print(insert_file(gauth.service,"ololo1","ololo-descriptipn","","text/plain","eng.txt"))
file_list = drive.ListFile({'q': "'root' in parents and trashed=false"}).GetList()
for file1 in file_list:
    print 'title: %s, id: %s, date: %s' % (file1['title'], file1['id'], file1['createdDate'])