Unable to import module 'app': No module named '_tkinter'", "errorType": "Runtime.ImportModuleError"

[ganesh3]

Hi,

I am trying to create a docker containers that will run on lambda but I continuously get the error: [Unable to import module 'app': No module named '_tkinter'", "errorType": "Runtime.ImportModuleError" on running the container.

I am sharing the my Dockerfile below:

FROM public.ecr.aws/lambda/python:3.8
RUN yum -y update
RUN yum -y install gcc
RUN yum install -y gcc-c++
RUN yum install -y git
RUN yum install -y which
COPY requirements.txt ./requirements.txt
RUN pip install -r requirements.txt \
    && pip install -e git+https://github.com/ganesh3/icevision.git@master#egg=icevision[inference] --upgrade
RUN mkdir -p ./fonts/
RUN curl -LJO https://raw.githubusercontent.com/airctic/storage/master/SpaceGrotesk-Medium.ttf
RUN cp SpaceGrotesk-Medium.ttf ./fonts/
RUN yum install -y tkinter tcl-devel tk-devel
COPY model_dir ./model_dir
COPY /app/app.py   ./
CMD ["app.handler"] 

The requirements.txt:

--find-links  https://download.pytorch.org/whl/torch_stable.html
torch==1.10.0+cpu 
torchvision==0.11.1+cpu
--find-links  https://download.openmmlab.com/mmcv/dist/cpu/torch1.10.0/index.html
mmcv-full==1.3.17
mmdet==2.17.0

The tkinter package is a basic package in python and hence required but even after installing it is not able to find the package. I logged in to the docker container using the below:

docker exec -it <container_name> sh

Then I logged into the python shell and ran:

>>> import tkinter
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/var/lang/lib/python3.8/tkinter/__init__.py", line 36, in <module>
    import _tkinter # If this fails your Python may not be configured for Tk
ModuleNotFoundError: No module named '_tkinter'

I ran the following in the python shell:

import subprocess
subprocess.call(['pip', 'install', 'tk'])

I also ran the following to install tkinter:

yum install -y tkinter
yum install -y python3-tkinter

Nothing seems to work and looks like the was lambda python runtime needs to have this package to run python smoothly. Can someone please suggest?

Warm Regards
Ganesh Bhat

[mespiga]

You aren't going to be able to run tkinter on AWS lambda. Tkinter requires a display.

[ganesh3]

Yes, I understand. I am not using tkinter in my project at all. My current understanding is that it is required by pillow package which is a dependency for torchvision. Torchvision being a very common package for deployment, I believe there needs to be a solution to it.

[mespiga]

Just tested pip install torchvision inside container and it works with FROM public.ecr.aws/lambda/python:3.8

[cwashington-bjss]

I hit this error in Lambda due to an overly helpful CoPilot import statement...

[shashidhar100]

I'm facing same issue here I'm unable to run lambda