在基于Alpine Linux的Docker镜像中安装pylint

我正在尝试在基于官方Python映像的Alpine Linux发行版的定制Docker镜像中安装Pylint 。 我试着用下面的Dockerfile：

FROM python:3.4-alpine RUN apk add --update pylint 

“这失败了

 Step 2/2 : RUN apk add --update pylint ---> Running in 34949003816d fetch http://dl-cdn.alpinelinux.org/alpine/v3.4/main/x86_64/APKINDEX.tar.gz fetch http://dl-cdn.alpinelinux.org/alpine/v3.4/community/x86_64/APKINDEX.tar.gz ERROR: unsatisfiable constraints: pylint (missing): required by: world[pylint] The command '/bin/sh -c apk add --update pylint' returned a non-zero code: 1 

另外，我试了一下

 FROM python:3.4-alpine RUN pip3 install pylint 

“这失败了

 Step 2/2 : RUN pip3 install pylint ---> Running in b044e3347d26 Collecting pylint Downloading pylint-1.7.1-py2.py3-none-any.whl (641kB) Collecting mccabe (from pylint) Downloading mccabe-0.6.1-py2.py3-none-any.whl Collecting isort>=4.2.5 (from pylint) Downloading isort-4.2.5-py2.py3-none-any.whl (40kB) Collecting six (from pylint) Downloading six-1.10.0-py2.py3-none-any.whl Collecting astroid>=1.5.1 (from pylint) Downloading astroid-1.5.2-py2.py3-none-any.whl (269kB) Collecting wrapt (from astroid>=1.5.1->pylint) Downloading wrapt-1.10.10.tar.gz Collecting lazy-object-proxy (from astroid>=1.5.1->pylint) Downloading lazy-object-proxy-1.2.2.tar.gz Complete output from command python setup.py egg_info: running egg_info creating pip-egg-info/lazy_object_proxy.egg-info writing dependency_links to pip-egg-info/lazy_object_proxy.egg-info/dependency_links.txt writing top-level names to pip-egg-info/lazy_object_proxy.egg-info/top_level.txt writing pip-egg-info/lazy_object_proxy.egg-info/PKG-INFO writing manifest file 'pip-egg-info/lazy_object_proxy.egg-info/SOURCES.txt' warning: manifest_maker: standard file '-c' not found reading manifest file 'pip-egg-info/lazy_object_proxy.egg-info/SOURCES.txt' reading manifest template 'MANIFEST.in' error: [Errno 2] No such file or directory: 'examples' ---------------------------------------- Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-1wq1n3ss/lazy-object-proxy/ The command '/bin/sh -c pip3 install pylint' returned a non-zero code: 1 

最后，我尝试使用以下Dockerfile从源代码构buildPylint：

 FROM python:3.4-alpine RUN apk add --update openssl RUN wget https://github.com/PyCQA/pylint/archive/master.zip RUN unzip master.zip RUN cd pylint-master && python3 setup.py install 

“这现在失败了

 Step 1/5 : FROM python:3.4-alpine ---> 9ac5db25a0ca Step 2/5 : RUN apk add --update openssl ---> Using cache ---> d9f61f983819 Step 3/5 : RUN wget https://github.com/PyCQA/pylint/archive/master.zip ---> Using cache ---> 2a536c150b22 Step 4/5 : RUN unzip master.zip ---> Using cache ---> e160d601a015 Step 5/5 : RUN cd pylint-master && python3 setup.py install ---> Running in d2a20f20ff12 (...) Searching for lazy_object_proxy Reading https://pypi.python.org/simple/lazy_object_proxy/ Downloading https://pypi.python.org/packages/65/63/b6061968b0f3c7c52887456dfccbd07bec2303296911757d8c1cc228afe6/lazy-object-proxy-1.2.2.tar.gz#md5=841b5592bc12c6ef7e48ed1d7a5f9066 Best match: lazy-object-proxy 1.2.2 Processing lazy-object-proxy-1.2.2.tar.gz Writing /tmp/easy_install-mxtkzpjj/lazy-object-proxy-1.2.2/setup.cfg Running lazy-object-proxy-1.2.2/setup.py -q bdist_egg --dist-dir /tmp/easy_install-mxtkzpjj/lazy-object-proxy-1.2.2/egg-dist-tmp-f6oeoyxl error: Setup script exited with error: [Errno 2] No such file or directory: 'examples' The command '/bin/sh -c cd pylint-master && python3 setup.py install' returned a non-zero code: 1 

任何想法如何获得Pylint安装？

Answer 1

看起来像最近版本的setuptools丢失。 将它添加到Dockerfile后，安装pylint的pip方式工作得很好。

 FROM python:3.4-alpine RUN pip3 install -U setuptools RUN pip3 install -U pylint