Frustration debugging serial code

Grant Edwards invalid at invalid.invalid
Fri May 7 15:40:22 EDT 2010


William R. Wing (Bill Wing) wrote:
> Hello World -
> I'm new to both Python and this list, but here's hoping someone can spot 
> my problem.
> 
> System:  Mac OS-X, 10.6.3 (Intel dual quad processor)
> Using Python 2.6.1, and pyserial-2.5_rc2-py2.6
> 
> The following snippet of code is designed to open a port via a KeySpan 
> USB-to-serial converter and communicate with an X10 power line signaling 
> system.  Before you look at the code, let me mention that my frustration 
> is the it executes perfectly if i enter it line by line at the Python 
> prompt, and executes perfectly if I run it under the Wing IDE.  It fails 
> silently (no errors) if I run it as a standalone script.  Clearly, I'm 
> missing something.

Well, the timing is vastly different in the two cases you cite. Have
you tried adding some delays in your code?

-- 
Grant Edwards               grant.b.edwards        Yow! Don't SANFORIZE me!!
                                  at               
                              gmail.com            



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