Can this run on Google App Engine?

[micahbolen]

I'm getting this error:

File "/Users/micahbolen/Desktop/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/runtime/wsgi.py", line 84, in LoadObject
obj = __import__(path[0])
  File "/Users/micahbolen/Desktop/institutions-search/helloworld.py", line 4, in <module>
from firebase import firebase
  File "/Users/micahbolen/Desktop/institutions-search/gaenv_lib/firebase/__init__.py", line 3, in <module>
from .async import process_pool
  File "/Users/micahbolen/Desktop/institutions-search/gaenv_lib/firebase/async.py", line 1, in <module>
import multiprocessing
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/multiprocessing/__init__.py", line 65, in <module>
from multiprocessing.util import SUBDEBUG, SUBWARNING
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/multiprocessing/util.py", line 40, in <module>
from subprocess import _args_from_interpreter_flags
ImportError: cannot import name _args_from_interpreter_flags

[hofline]

hello, is any workaround for this. I got the same issue downloading and building code from master branch. Thanks.

[micahbolen]

Reopening this issue on behalf of @hofline

[juliankmazo]

Hello. Any workaround?

[matrixl]

Has anybody had a solution for this?

[nckh]

Hi. I ended up using Requests and call the Firebase HTTP API manually!

[micahbolen]

@nckh Kudos for figuring out a workaround.

[kevando]

Hey @b4oshany I tried using your fork and I am still getting this error. Any idea what I'm doing wrong?

ImportError: cannot import name _args_from_interpreter_flags

[b4oshany]

@kevando, appengine blocks the use of multiprocessing or any form of threading that is not called by the deferred and the task queue package. The python-firebase-gae package doesn't use multiprocessing, instead it uses the deferred package to perform multiple subroutine.

pip install python-firebase-gae

[kevando]

Wow. @b4oshany I don't know what you said to help me understand, but I finally got it working! Thanks so much. Appengine is a tricky one.

One last question. Is it possible to create some sort of listener with a python appengine server? I want my python server to execute a function everytime there is a specific change to the firebase data (similar to how I would in node). Or would it make more sense to just set up a cron that queues firebase every minute or so.

[bogdanr]

Yeah, python-firebase-gae should be merged somehow to import either lib depending on the environment. Perhaps something like this in async.py could be a staring point:

if os.environ.get('SERVER_SOFTWARE'):
    if os.environ.get('SERVER_SOFTWARE').startswith('Development') or os.environ.get('SERVER_SOFTWARE').startswith('Google'):
        from google.appengine.ext import deferred
    else:
        import multiprocessing

[b4oshany]

@bogdanr I had to change the async function and other functions that are within the python-firebase package to support app engine deferred module. Hence, the reason why I created a separate package instead.

[b4oshany]

@kevando It is possible to do so, but setting up a task queue (Cron Job) is easier and more convenient.