我正在Docker中运行Flask应用程序。我也在用熊猫。我正在使用python2.7-alpine图像。之前它可以正常工作，即我可以使用相同的配置来生成图像。
但是现在我无法按照该图像构建图像：
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
我无法更改python版本。由于我的应用程序是基于python2构建的，因此早就可以预期了。
我的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
完整的错误回溯是：
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
答案 0 :(得分：2)
错误告诉您原因：
中的文件“ /tmp/easy_install-r9No9Q/numpy-1.17.0rc1/setup.py”，第31行 def is_platform_mac（）：
RuntimeError：Python版本> = 3.5必需。
从熊猫0.23.4 source：我们可以看到numpy的最低版本是1.9.0：
min_numpy_ver ='1.9.0'
因此，如果您不是自己安装版本，pandas只会安装numpy的最新版本，该版本>1.9.0为您服务，这里是numpy-1.17.0rc1，但需要>python3.5如here所示，因此会发生故障。
python_requires ='> = 3.5'
最后，如果检查numpy的源代码，您会发现1.16.4是支持python2.7的最新版本，请参见this，
python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*',
因此，最终解决方案：
预安装numpy 1.16.4，然后熊猫发现那里有一个合适的numpy，并且不会为您安装最新的numpy。结果，将不会发生错误，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即可解决：
RUN apk update && \
apk add build-base && \
pip install numpy==1.16.4 && \
pip install pandas==0.23.4
另外，您说的是
之前效果很好，也就是说，我能够使用相同的配置来构建图像。
这是因为numpy latest version刚于2019年7月1日更新，在此之前，它始终是1.16.4版本，没有python27的问题，但是现在，情况发生了变化...