If I run the following code, I can convert the csv file into a format that I require.

import csv
import json

csvfile = open('/tmp/head.csv', 'r')
jsonfile = open('/tmp/file.json', 'w')

fieldnames = ("user","messageid","destination","col1", "col2", "code1","code2", "mydate", "status")

reader = csv.DictReader( csvfile, fieldnames)

for row in reader:

When I run the code at command prompt, it works.

python covert.py

But if I create docker container, ubuntu refused to write to the disk.

alias python34='docker run -i   -v "$(pwd)":/tmp/  --rm shantanuo/pyrun:3.4 python "$@"'

python34 /tmp/convert.py

I got segmentation fault error. I tried disabling ubuntu firewall using

sudo ufw disable

I tried removing apparmour. But I am still not able to write to /tmp/ folder of host machine through python container.

This is ubuntu specific issue. I am able to use the same alias on Amazon Linux ec2 instance.


This was because the container (pyrun) that I was using was not optimized to handle large files. When I used the default python image, it worked.

docker run -it --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp python:3 python convert.py

Your Answer

By clicking "Post Your Answer", you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.