Python Sample, "EnvironmentError: mysql_config not found"

[garbados]

Running this:

git clone git://github.com/WindowsAzure/azure-resource-provider-sdk.git
cd azure-resource-provider-sdk/samples/python-flask/
virtualenv venv
source venv/bin/activate
pip install -r requirements.txt

yields:

EnvironmentError: mysql_config not found

----------------------------------------
Command python setup.py egg_info failed with error code 1 in /Users/deus/code/cloudant/azure-resource-provider-sdk/samples/python-flask/venv/build/MySQL-python

No explanation in the sample's docs for resolving this. If the user is missing a dependency, it should be noted in a readme, yes?