pandas - Docker build failing while installing pandas in docker in python2.7-alpine
问题描述
I am running a flask application in Docker. I am also using Pandas. I am using python2.7-alpine image. Earlier it was working fine i.e. I was able to build images with the same configuration.
But now I am unable to build the image as it says:
ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-Sm9A7D/pandas/
The command '/bin/sh -c pip install -r /tmp/requirements.txt' returned a non-zero code: 1
I cannot change the python version. As my application is built on python2 and was as expected for a long back.
My Dockerfile
FROM python:2.7-alpine
RUN echo "ipv6" >> /etc/modules;
# echo "http://dl-cdn.alpinelinux.org/alpine/latest-stable/main" > /etc/apk/repositories; \
# echo "http://dl-cdn.alpinelinux.org/alpine/latest-stable/community" >> /etc/apk/repositories; \
# echo "http://dl-2.alpinelinux.org/alpine/latest-stable/community" >> /etc/apk/repositories; \
# echo "http://dl-3.alpinelinux.org/alpine/latest-stable/community" >> /etc/apk/repositories; \
# echo "http://dl-4.alpinelinux.org/alpine/latest-stable/community" >> /etc/apk/repositories; \
# echo "http://dl-5.alpinelinux.org/alpine/latest-stable/community" >> /etc/apk/repositories
RUN rm -rf /var/cache/apk/* && \
rm -rf /tmp/* && \
apk update && \
apk add --update bash sudo
#================================================================
# add dependencies
#================================================================
RUN apk add --update --no-cache g++ gcc libffi-dev make gpgme p11-kit openssl-dev openssh
#================================================================
# pip and required modules install
#================================================================
### Upgrade pip to prevent errors
RUN pip install setuptools --upgrade
ADD requirements.txt /tmp/requirements.txt
RUN pip install -r /tmp/requirements.txt
The full error track back is:
ERROR: Complete output from command python setup.py egg_info:
ERROR: Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-install-Sm9A7D/pandas/setup.py", line 749, in <module>
**setuptools_kwargs)
File "/usr/local/lib/python2.7/site-packages/setuptools/__init__.py", line 144, in setup
_install_setup_requires(attrs)
File "/usr/local/lib/python2.7/site-packages/setuptools/__init__.py", line 139, in _install_setup_requires
dist.fetch_build_eggs(dist.setup_requires)
File "/usr/local/lib/python2.7/site-packages/setuptools/dist.py", line 717, in fetch_build_eggs
replace_conflicting=True,
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 782, in resolve
replace_conflicting=replace_conflicting
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 1065, in best_match
return self.obtain(req, installer)
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 1077, in obtain
return installer(requirement)
File "/usr/local/lib/python2.7/site-packages/setuptools/dist.py", line 784, in fetch_build_egg
return cmd.easy_install(req)
File "/usr/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 679, in easy_install
return self.install_item(spec, dist.location, tmpdir, deps)
File "/usr/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 705, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File "/usr/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 890, in install_eggs
return self.build_and_install(setup_script, setup_base)
File "/usr/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1158, in build_and_install
self.run_setup(setup_script, setup_base, args)
File "/usr/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1144, in run_setup
run_setup(setup_script, args)
File "/usr/local/lib/python2.7/site-packages/setuptools/sandbox.py", line 253, in run_setup
raise
File "/usr/local/lib/python2.7/contextlib.py", line 35, in __exit__
self.gen.throw(type, value, traceback)
File "/usr/local/lib/python2.7/site-packages/setuptools/sandbox.py", line 195, in setup_context
yield
File "/usr/local/lib/python2.7/contextlib.py", line 35, in __exit__
self.gen.throw(type, value, traceback)
File "/usr/local/lib/python2.7/site-packages/setuptools/sandbox.py", line 166, in save_modules
saved_exc.resume()
File "/usr/local/lib/python2.7/site-packages/setuptools/sandbox.py", line 141, in resume
six.reraise(type, exc, self._tb)
File "/usr/local/lib/python2.7/site-packages/setuptools/sandbox.py", line 154, in save_modules
yield saved
File "/usr/local/lib/python2.7/site-packages/setuptools/sandbox.py", line 195, in setup_context
yield
File "/usr/local/lib/python2.7/site-packages/setuptools/sandbox.py", line 250, in run_setup
_execfile(setup_script, ns)
File "/usr/local/lib/python2.7/site-packages/setuptools/sandbox.py", line 45, in _execfile
exec(code, globals, locals)
File "/tmp/easy_install-2BV0tR/numpy-1.17.0rc1/setup.py", line 31, in <module>
def is_platform_mac():
RuntimeError: Python version >= 3.5 required.
----------------------------------------
ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-Sm9A7D/pandas/
The command '/bin/sh -c pip install -r /tmp/requirements.txt' returned a non-zero code: 1
解决方案
错误告诉你原因:
文件“/tmp/easy_install-r9No9Q/numpy-1.17.0rc1/setup.py”,第 31 行,在
def is_platform_mac():
RuntimeError: Python version >= 3.5 required。
从 pandas 0.23.4来源:我们可以看到 numpy 的最低版本是1.9.0
:
min_numpy_ver = '1.9.0'
因此,如果您没有自己安装版本,pandas 只会安装适合>1.9.0
您的最新版 numpy,这里是numpy-1.17.0rc1
,但它需要在这里>python3.5
看到,所以会发生故障。
python_requires='>=3.5'
最后,如果你查看 numpy 的源代码,你会发现1.16.4
它是支持 python2.7 的最后一个版本,看这个,
python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*',
所以,最终解决方案:
预先安装 numpy 1.16.4,然后 pandas 会发现那里有合适的 numpy,不会为你安装最新的 numpy。结果,不会发生错误,详细步骤如下:
apk update
apk add build-base
pip install numpy==1.16.4
pip install pandas==0.23.4
对于Dockerfile
,将上述命令添加到一个 RUN 可以修复:
RUN apk update && \
apk add build-base && \
pip install numpy==1.16.4 && \
pip install pandas==0.23.4
另外,您在问题中说:
早些时候它工作正常,即我能够使用相同的配置构建图像。
这是因为numpy 最新版本刚刚在 2019 年 7 月 1 日更新,在此之前,它始终是 python271.16.4
没有问题的版本,但现在,事情发生了变化......
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