Hi,
I'm new to Python, using Python3 on RaspberryPi/ArchLinux for a home
automation project.
I started off with interfacing an LCD screen (serial interface) and have
this working reasonably well.
Then I received a couple of interface boards. I attached one of these,
together with the serial interface for the LCD.
Even without loading (importing) any support libraries for the new
interface board, the code which was running perfectly well before is now
producing an error:
=====================================================================
Traceback (most recent call last):
File "/usr/lib/python3.4/site-packages/serial/serialposix.py", line
461, in read
ready,_,_ = select.select([self.fd],[],[], self._timeout)
InterruptedError: [Errno 4] Interrupted system call
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "./water.py", line 36, in <module>
picasso.putstr(strftime("%a, %d %b %Y %X"),1,1)
File "/root/picasso.py", line 44, in putstr
port.read(1)
File "/usr/lib/python3.4/site-packages/serial/serialposix.py", line
480, in read
if e[0] != errno.EAGAIN:
TypeError: 'InterruptedError' object is not subscriptable
=====================================================================
I'm not sure how to address the 'InterruptedError'. Can it/should it be
masked at the user code level with a 'try:' block? Or is there another
way to deal with it?
I presume that the subsequent error (TypeError) indicates some fault in
the system level library. I'm not sure where/how to report this.
Any advice would be appreciated.
--
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Peter Bell
Tagum City, Philippines.
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