Re: Pyserial again

Richie Hindle wrote:
A piece of that code has been chopped off by someone's newsreader - it's the
body of a method, and ser.readline() is the last line of that method.

I'm pretty sure that's true. Technically, however, it's still a guess, though at this point one I'm sure we're all comfortable making.

That's why I asked about code *after* that last line. He replied there was no code before, but I think we can be generous in interpreting that (through the language barrier) as "no code after".

Unfortunately, at this point we're getting into application design issues unless and until Luca can learn enough Python and other programming stuff to understand why "ser" is "going out of scope" because it's a "local variable" and is then being "garbage collected".

(Luca, if you're reading, you really either have to just do exactly what Grant tells you :-), or learn about these issues enough to understand. If you don't know about object construction and destruction, memory allocation and garbage collection, the concept of "scope" and the difference between things like local variables, global variables, and attributes, we're going to continue to have an exceptionally difficult and frustrating time helping you. Serial ports aren't trivial, and combining them with a GUI program written by a rookie is a pretty big order. You can learn enough to figure this out, but it will be lots of work and a challenge. If you're up to it, please go read that "how to ask smart questions" page thoroughly if you haven't already, realizing that we're not trying to be rude by asking you to read it, and pay attention when someone asks you to try out different things, such as posting a small program that reproduces the problem, or post all the code rather than just snippets. Good luck.)

-Peter

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