Handle unset and false variables the same way

[ymage]

Some variables set with a False value are handled as True because the test is only on existence. cf #1249

[acasajus]

We cannot change this config like that. It will break already existing configs.

[ymage]

I understand.

My point is : when you set some boolean vars as False, they are processed as "if it is set, it must be True" which is really disturbing :-/ How would be the right way to ensure that False are processed as False ?

[ymage]

What do you think about the opposite default ? Something like this : COLOR_LOG = os.environ.get("COLOR_LOG", 'False').lower() not in ('false', '0', 'f')

[ymage]

Can you give it a try and take a look ?