在 virtualenv 上安装 PySimpleSoap 时，一切似乎都正常，然后我收到一条错误消息Failed building wheel for pysimplesoap，最后有一条消息Successfully installed pysimplesoap-1.16。
这是一个可以忽略的错误，还是应该在我开始使用 PySimpleSoap 之前解决？在这种情况下，我并没有真正得到应该安装的包的消息。如果必须解决，最好的方法是什么？
(currency-converter)johan@johan-pc:~/sdp/currency-converter$ pip install pysimplesoap
Collecting pysimplesoap
Downloading PySimpleSOAP-1.16.tar.gz
Building wheels for collected packages: pysimplesoap
Running setup.py bdist_wheel for pysimplesoap
Complete output from command /home/johan/sdp/currency-converter/bin/python3 -c "import setuptools;__file__='/tmp/pip-build-l0q8rh86/pysimplesoap/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmpynogfhy_pip-wheel-:
running bdist_wheel
running build
running build_py
creating build
creating build/lib
creating build/lib/pysimplesoap
copying pysimplesoap/plugins.py -> build/lib/pysimplesoap
copying pysimplesoap/simplexml.py -> build/lib/pysimplesoap
copying pysimplesoap/xmlsec.py -> build/lib/pysimplesoap
copying pysimplesoap/wsse.py -> build/lib/pysimplesoap
copying pysimplesoap/c14n.py -> build/lib/pysimplesoap
copying pysimplesoap/helpers.py -> build/lib/pysimplesoap
copying pysimplesoap/transport.py -> build/lib/pysimplesoap
copying pysimplesoap/server.py -> build/lib/pysimplesoap
copying pysimplesoap/__init__.py -> build/lib/pysimplesoap
copying pysimplesoap/client.py -> build/lib/pysimplesoap
installing to build/bdist.linux-x86_64/wheel
running install
running install_lib
creating build/bdist.linux-x86_64
creating build/bdist.linux-x86_64/wheel
creating build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/plugins.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/simplexml.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/xmlsec.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/wsse.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/c14n.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/helpers.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/transport.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/server.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/__init__.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
copying build/lib/pysimplesoap/client.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
running install_egg_info
running egg_info
creating soap2py.egg-info
writing soap2py.egg-info/PKG-INFO
writing top-level names to soap2py.egg-info/top_level.txt
writing dependency_links to soap2py.egg-info/dependency_links.txt
writing manifest file 'soap2py.egg-info/SOURCES.txt'
warning: manifest_maker: standard file '-c' not found
reading manifest file 'soap2py.egg-info/SOURCES.txt'
writing manifest file 'soap2py.egg-info/SOURCES.txt'
Copying soap2py.egg-info to build/bdist.linux-x86_64/wheel/soap2py-1.16-py3.4.egg-info
running install_scripts
creating build/bdist.linux-x86_64/wheel/soap2py-1.16.dist-info/WHEEL
running bdist_wheel
running build
running build_py
installing to build/bdist.linux-x86_64/wheel
running install
running install_lib
copying build/lib/pysimplesoap/plugins.py -> build/bdist.linux-x86_64/wheel/pysimplesoap
error: could not create 'build/bdist.linux-x86_64/wheel/pysimplesoap/plugins.py': No such file or directory
----------------------------------------
Failed building wheel for pysimplesoap
Failed to build pysimplesoap
Installing collected packages: pysimplesoap
Running setup.py install for pysimplesoap
Successfully installed pysimplesoap-1.16