我既不能通过pip也不能从源代码安装cx_oracle。错误是一样的。
来自：
Traceback (most recent call last):
File "setup.py", line 174, in <module>
raise DistutilsSetupError("cannot locate an Oracle software " \
distutils.errors.DistutilsSetupError: cannot locate an Oracle software installation
by pip：
pip install cx_oracle
Collecting cx_oracle
Using cached cx_Oracle-5.2.1.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "", line 1, in
File "/private/var/folders/3w/q8kdj8j16h1_2d91_th3j6pc0000gn/T/pip-build-gva4v7dp/cx-oracle/setup.py", line 170, in
raise DistutilsSetupError("cannot locate an Oracle software " \
distutils.errors.DistutilsSetupError: cannot locate an Oracle software installation
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/3w/q8kdj8j16h1_2d91_th3j6pc0000gn/T/pip-build-gva4v7dp/cx-oracle/
OS X El Capitan版本10.11.5