使用依赖项使用 Google Cloud Functions 部署 Python 函数时出错

Question

I am trying to deploy a simple function using Python 3.7. My setup looks like this:

main.py

from firebase import firebase

def hello_world(request):
    if request.method == 'POST':
        return request.get_json().get('username')
    return f'Hello world!'

requirements.txt

# Function dependencies, for example:
# package>=version
requests==1.1.0
python-firebase==1.2

When deploying, I get this following error:

Deployment failure:
Function failed on loading user code. Error message: Code in file main.py can't be loaded.
Detailed stack trace: Traceback (most recent call last):
  File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 305, in check_or_load_user_function
    _function_handler.load_user_function()
  File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 184, in load_user_function
    spec.loader.exec_module(main)
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/user_code/main.py", line 1, in <module>
    from firebase import firebase
  File "/env/local/lib/python3.7/site-packages/firebase/__init__.py", line 3
    from .async import process_pool
              ^
SyntaxError: invalid syntax

How can I solve this issue? I have all the required dependencies listed. Any help is appreciated.

Answer 1

The python-firebase project was last released on March 21, 2014 by a third-party developer and doesn't support Python 3.7. Specifically it uses the new reserved keywords async / await .

You probably want to use the google-cloud-firestore client library instead, which is maintained and supported by Google.