CODEWITHSUNDEEP
pythondocker
Héctor
Héctor

Reputation: 26034

Issue executing python script in Docker

I'm starting with Docker. I have started with a Hello World script in Python 3. This is my Dockerfile:

FROM ubuntu:latest

RUN apt-get update
RUN apt-get install python3


COPY . hello.py


CMD python3 hello.py

In the same directory, I have this python script:

if __name__ == "__main__":
    print("Hello World!");

I have built the image with this command:

docker build -t home/ubuntu-python-hello .

So far, so good. But when I try to run the script with this command:

docker run home/ubuntu-python-hello

I get this error:

/usr/bin/python3: can't find '__main__' module in 'hello.py'

What am I doing wrong? Any advice or suggestion is accepted, I'm just a newbie.

Thanks.

Upvotes: 2

Views: 3121

Answers (2)

Héctor
Héctor

Reputation: 26034

Thanks to Gerrat, I solved it this way:

COPY hello.py hello.py

instead of

COPY . hello.py

Upvotes: 2

Alex
Alex

Reputation: 1

You need to install python this way and confirm it with the -y.

RUN apt-get update && apt-get install python3-dev -y

Upvotes: -1

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