"Failed building wheel for psycopg2" - MacOSX using virtualenv and pip
Full error message
I'm attempting to make a website with a few others for the first time, and have run into a weird error when trying to use Django/Python/VirtualEnv. I've found solutions to this problem for other operating systems, such as Ubuntu, but can't find any good solutions for Mac. This is the relevant code being run: virtualenv -p python3 venv source venv/bin/activate pip install -r requirements.txt After running that block, I get the following errors: AssertionError Failed building wheel for django-toolbelt Running setup.py bdist_wheel for psycopg2 ... AssertionError Failed building wheel for psycopg2 Failed to build django-toolbelt psycopg2 I believe I've installed the "django-toolbelt" and "psycopg2", so I'm not sure why it would be failing. The only difference I can think of is that I did not use the command sudo apt-get install libpq-dev as was instructed for Ubuntu usage as I believe that installing postgresql with brew took care of the header. Thanks for any help or insight!
Solutionsource: stackoverflow \u2197
For MacOS users After trying all the above methods (which did not work for me on MacOS 10.14), that one worked : Install openssl with brew install openssl if you don't have it already. add openssl path to LIBRARY_PATH : export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/opt/openssl/lib/ install psycopg2 with pip pip3 install psycopg2
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