Anabta Anabta - 2 months ago 11x
Python Question

Python Google Drive API fails with exit code -1073740777 (0xC0000417)

I am building a python application which uploads images to google drive. However after working for some some time my google drive upload suddenly stopped working. Whenever I try to initialize the service, the program exits with code -1073740777 (0xC0000417).

I have already tried to create a new client_secret.json file with the developer console (also with a completely different Google account) and deleting the drive-python-quickstart.json credential file.

My friends do not have this problem with the same code and as I said, this has worked for me for some time, too, but suddenly stopped working.

I am running Windows 10 Pro x64 with Python 3.5 32 Bit.

The problem occurrs when running this example program (taken from the Google quickstart guide):

from __future__ import print_function
import httplib2
import os

from apiclient import discovery
import oauth2client
from oauth2client import client
from oauth2client import tools

import argparse
flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args()
except ImportError:
flags = None

CLIENT_SECRET_FILE = 'client_secret.json'
APPLICATION_NAME = 'Drive API Python Quickstart'

def get_credentials():
"""Gets valid user credentials from storage.

If nothing has been stored, or if the stored credentials are invalid,
the OAuth2 flow is completed to obtain the new credentials.

Credentials, the obtained credential.
home_dir = os.path.expanduser('~')
credential_dir = os.path.join(home_dir, '.credentials')
if not os.path.exists(credential_dir):
credential_path = os.path.join(credential_dir,

store = oauth2client.file.Storage(credential_path)
credentials = store.get()
if not credentials or credentials.invalid:
flow = client.flow_from_clientsecrets(CLIENT_SECRET_FILE, SCOPES)
flow.user_agent = APPLICATION_NAME
if flags:
credentials = tools.run_flow(flow, store, flags)
else: # Needed only for compatibility with Python 2.6
credentials =, store)
print('Storing credentials to ' + credential_path)
return credentials

def main():
"""Shows basic usage of the Google Drive API.

Creates a Google Drive API service object and outputs the names and IDs
for up to 10 files.
credentials = get_credentials()
http = credentials.authorize(httplib2.Http())
service ='drive', 'v2', http=http)

results = service.files().list(maxResults=10).execute()
items = results.get('items', [])
if not items:
print('No files found.')
for item in items:
print('{0} ({1})'.format(item['title'], item['id']))

if __name__ == '__main__':


Okay, I have fixed the problem myself eventually.

After a little bit of debugging, I found out the following:

The oauth2client can use two different methods for opening a file. It first tries to import the class _Win32Opener and when the import fails it uses the _FcntlOpener. The import of _Win32Opener does not fail but the opening and locking of a file using the _Win32Opener fails so the program crashes. To force oauth2client to use the _FcntlOpener, just remove/rename the file in your pyhton packages.

Relevant files:



Just remove/rename the file