问题
I am using openpyxl python package in my application. I am getting the following message when using the same.
/usr/local/lib/python2.7/dist-packages/openpyxl/init.py:31: UserWarning: The installed version of lxml is too old to be used with openpyxl
warnings.warn("The installed version of lxml is too old to be used with openpyxl")
Openpyxl requires lxml version 3.2.5 or above, and the version in my machine is 3.2.0. When I try to upgrade lxml to the latest version ie 3.3.5, it is getting interrupted with the following message.
i686-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -D_FORTIFY_SOURCE=2 -g -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security build/temp.linux-i686-2.7/src/lxml/lxml.etree.o -lxslt -lexslt -lxml2 -lz -lm -o build/lib.linux-i686-2.7/lxml/etree.so
/usr/bin/ld: cannot find -lz
collect2: error: ld returned 1 exit status
error: command 'i686-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Rolling back uninstall of lxml
Replacing /usr/lib/python2.7/dist-packages/lxml
Replacing /usr/lib/python2.7/dist-packages/lxml-3.2.0.egg-info
Cleaning up...
Removing temporary dir /tmp/pip_build_root...
Command /usr/bin/python -c "import setuptools;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-ov0PUy-record/install-record.txt --single-version-externally-managed failed with error code 1 in /tmp/pip_build_root/lxml
I need help in resolving the issue.
PS:- I have already installed lxml dependent packages python-dev, libxml2-dev and libxslt1-dev in my machine.
回答1:
I think what you're missing is zlib1g-dev.
sudo apt-get install zlib1g-dev
Running above command will solve the issue.
回答2:
sudo pip install --upgrade lxml
回答3:
On Ubuntu (and other Debian derivatives), before you build some piece of software, ensure that its build dependencies are installed. Using your example, run this:
sudo apt-get build-dep python-lxml
That is likely going to require a whole bunch of packages, one of which is zlib1g-dev, as mentioned.
来源：https://stackoverflow.com/questions/23570913/not-able-to-install-lxml-verison-3-3-5-in-ubuntu