This might be silly but I am unable to install cPickle with python 3.5 docker image
Dockerfile
FROM python:3.5-onbuild
requirements.txt
cpickle
When I try to build the image
$ docker build -t sample .
Sending build context to Docker daemon 3.072 kB
Step 1 : FROM python:3.5-onbuild
# Executing 3 build triggers...
Step 1 : COPY requirements.txt /usr/src/app/
Step 1 : RUN pip install --no-cache-dir -r requirements.txt
---> Running in 016c35a032ee
Collecting cpickle (from -r requirements.txt (line 1))
Could not find a version that satisfies the requirement cpickle (from -r requirements.txt (line 1)) (from versions: )
No matching distribution found for cpickle (from -r requirements.txt (line 1))
You are using pip version 7.1.2, however version 8.1.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
The command '/bin/sh -c pip install --no-cache-dir -r requirements.txt' returned a non-zero code: 1
2 Answers
cPickle comes with the standard library… in python 2.x. You are on python 3.x, so if you want cPickle, you can do this:
>>> import _pickle as cPickle
However, in 3.x, it's easier just to use pickle.
No need to install anything. If something requires cPickle in python 3.x, then that's probably a bug.
You can use this for both python 2 and 3
try:
import cPickle as pickle
except:
import pickle
