Feature/update tag value

[AlcibiadesCleinias]

Hi,

there was a discussion with possible implementation: #498.
Then, @ldariva contribute with pr: https://github.com/Hugovdberg/PIconnect/pull/540/files but it still is opened and with some changes suggested.

• so, my pr fully relies on the pr mentioned above
• In a code, I allowed myself to leave some function argument annotations. I believe with annotations it is easier to understand what should be passed to a method and IDE shows hints, and pep8... (until the last I have tried to follow the main rule of pep8: cohesive module style, but I guess with such annotations it is rly more comfortable and readable)
• with the new update method, it is possible to change old values with the right combination of the method options
• rm todo in the readme and wrote features list instead (not sure if completed)

Acknowledgment

• @ldariva
• @Hugovdberg

PS.
It is better to review and merge after #572

[AlcibiadesCleinias]

M-m, @Hugovdberg I saw your use of int(IntEnum). Guess, I will change behaviour to yours, i.e. instead of IntEnum.value -> int(IntEnum). So leave the possibility to pass to a method integers

[Hugovdberg]

I chose this implementation to allow for direct use of int values indeed, which I believe was mostly to accommodate for versions of python.

[Hugovdberg]

Thanks a lot for this contribution. This is a valuable addition to the package, as it was a widely requested feature. I have added a few comments for things I would like to see slightly different before merging. Also, don't forget to add yourself to the AUTHORS.rst as a contributor!