问题
On Mac OS Sierra, created virtualenv using python2.7 and trying to install mysqlclient to use Django w/ MySQL. I installed MySQL 5.6 via homebrew. Running "pip install mysqlclient" gives these errors:
Running setup.py bdist_wheel for mysqlclient ... error
...
13 warnings generated.
cc -bundle -undefined dynamic_lookup -arch i386 -arch x86_64 -Wl,-F. build/temp.macosx-10.12-intel-2.7/_mysql.o -L/usr/local/Cellar/mysql56/5.6.32/lib -lmysqlclient -lssl -lcrypto -o build/lib.macosx-10.12-intel-2.7/_mysql.so
ld: library not found for -lssl
clang: error: linker command failed with exit code 1 (use -v to see invocation)
error: command 'cc' failed with exit status 1
Failed building wheel for mysqlclient
Command "...env2.7/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/nm/mqfwjt115q7g0lpvnx7sylwm0000gn/T/pip-build-tJmAVS/mysqlclient/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/nm/mqfwjt115q7g0lpvnx7sylwm0000gn/T/pip-xVuIu1-record/install-record.txt --single-version-externally-managed --compile --install-headers .../env2.7/include/site/python2.7/mysqlclient" failed with error code 1 in /private/var/folders/nm/mqfwjt115q7g0lpvnx7sylwm0000gn/T/pip-build-tJmAVS/mysqlclient/
Any help would be greatly appreciated.
回答1:
The answer was installing dev tools using:
xcode-select --install
回答2:
In my case I needed to do two steps:
xcode-select --install
as @howevilweare says AND also pip install with the brew installed openssl using an env command:
env LDFLAGS="-I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib" pip install mysqlclient
来源：https://stackoverflow.com/questions/40348571/mac-os-sierra-virtualenv-python-2-7-pip-install-mysqlclient-error