使用 python 3.5 安装 cPickle

Question

这可能很愚蠢，但我无法使用 python 3.5 docker 图像

安装 cPickle

Dockerfile

FROM python:3.5-onbuild

requirements.txt

cpickle

当我尝试构建图像时

$ 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

Answer 1

cPickle 带有标准库……在 python 2.x 中。你在 python 3.x，所以如果你想要 cPickle，你可以这样做：

>>> import _pickle as cPickle

但是，在 3.x 中，使用 pickle 更容易。

无需安装任何东西。如果某些东西在 python 3.x 中需要 cPickle，那么这可能是一个错误。

Answer 2

您可以将此用于 python 2 和 3

try:
  import cPickle as pickle
except:
  import pickle

使用 python 3.5 安装 cPickle

installing cPickle with python 3.5

python

pickle

docker

python-3.5