title: error during installation of flask-mysqldb (python 3) on a mac (OS High Sierra)
body: <p>While following an online tutorial to create a Flask web-app, I was trying to install flask-mysqldb with <code>sudo pip3 install flask-mysqldb</code>. This results in an installation error which seems to stem from a dependency problem. The error message is as follows <code>Command "/usr/local/opt/python/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/private/tmp/pip-install-nbajn5in/mysqlclient/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/tmp/pip-record-_eid7ul7/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/tmp/pip-install-nbajn5in/mysqlclient/</code>
  I have not been able to find any resources indicating a way forward outside of abandoning flask-mysqldb in favour of another module. Thanks</p>