Lint improvements

[EdwinWenink]

Was looking at the repository trying to find out why only NAs were returned, made some linting improvements along the way. They are all minor, mainly:

• Python loggers use old %s formatting for lazy evaluation
• Removed unnecessary elifs/else return constructions to remove unneeded indentation
• Timeouts on requests module are recommended because it doesnt time out by default
• Minor stuff

[AndrewFBel]

Hey @EdwinWenink, this won't resolve the issue with NAs, will it?

[EdwinWenink]

Unfortunately it won't, these are just some small changes for coding style. Doesn't add "value" in terms of functionality.