ModuleNotFoundError for pandas when hosted in Azure

Python function, works fine locally using either VS Code and command line. Deployed using VS Code. Expected to work fine in Azure. However, In Azure I get a 500 response. Error code is ‘ModuleNotFoundError’. Same result on both Consumption and Dedicated plans. Full error message below:

Result: Failure Exception: ModuleNotFoundError: No module named 'pandas' Stack: File "/usr/local/lib/python3.6/site-packages/azure/functions_worker/dispatcher.py", line 230, in _handle__function_load_request func_request.metadata.entry_point) File "/usr/local/lib/python3.6/site-packages/azure/functions_worker/loader.py", line 66, in load_function mod = importlib.import_module(fullmodname) File "/usr/local/lib/python3.6/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 994, in _gcd_import File "<frozen importlib._bootstrap>", line 971, in _find_and_load File "<frozen importlib._bootstrap>", line 941, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "<frozen importlib._bootstrap>", line 994, in _gcd_import File "<frozen importlib._bootstrap>", line 971, in _find_and_load File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 665, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 678, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/home/site/wwwroot/Predict/__init__.py", line 6, in <module> from .SharedCode.predict import predict File "/home/site/wwwroot/Predict/SharedCode/predict.py", line 4, in <module> import pandas as pd

There are other modules in the same file which don’t throw this error. See head of predict.py:

import logging
import pickle
from . import (utils, data)
import pandas as pd

class predict():
...

My requirements.txt file:

astroid==2.2.5
azure-functions==1.0.0b4
colorama==0.4.1
isort==4.3.20
joblib==0.13.2
lazy-object-proxy==1.4.1
mccabe==0.6.1
numpy==1.16.3
pandas==0.24.2
pylint==2.3.1
python-dateutil==2.8.0
pytz==2019.1
scikit-learn==0.21.1
scipy==1.3.0
six==1.12.0
typed-ast==1.3.5
wrapt==1.11.1

[Hazhzeng]

@LbrsRyanS Please follow the vscode-azurefunctions wiki page for deploying with remote build https://github.com/microsoft/vscode-azurefunctions/wiki/Remote-Build

@AbdolrezaMadi When using the remote build, your package should be resolved on our servers instead of your local machine. Your functions core tools is out of date (2.4.419) and it does not support remote build. You may want to update it by npm i -g azure-functions-core-tools --unsafe-perm true and the build --remote flag should work after downloading the latest core tools.

[AbdolrezaMadi]

Thanks a lot for the tip. It solved the problem I mentioned. After fixing this issue, I got another problem with azure-function package, which is explained here: https://github.com/Azure/azure-functions-python-worker/issues/504 Upgrdaing this package to version 1.0.4 and removing azure-functions-worker from my requirements.txt fixed the issues (I recreated the function app, since it was recommended in the Remote-Build procedure).

Thanks again