How to use custom dialect with pymavlink installed pip

[emialonzo]

Add instructions to use custom dialect python file in code running pymavlink installed with pip

[hamishwillee]

Thanks @emialonzo
So basically you're installing the files locally, updating the CRC and importing your own library?

Why would you choose to do it this way rather than recreate the library for your dialect? The reason I ask is that it is good to give users a clear path to take. If this is "just another way" I'd rather not include it. If it is another way with significant advantages then yes, we should include it.

[emialonzo]

HI @hamishwillee
I think this method is better because it makes it easier to distribute the code. You can use pip to install pymavlink and then include a single .py file with the definition of the new dialect without being coupled to the pymavlink or mavlink (mavgen) source code.
Regarding the CRC, I only update the path to the CRC module to use the one installed by pip and not the one associated to the mavgen source code.

[hamishwillee]

@emialonzo Thanks. I am not ignoring you, just got swamped by other work. Hope to look at this soon.