I am trying to use connection to a serial device in my DJango app.
It's a GSM modem I want to use to send sms's.
If I just import my sms module, everything works fine. Module connects
to modem, sets it to text format and then just allows me to send some
sms's.
But when I add to DJango, the initialisation fails. I use pySerial and
although I can use write on Serial object, when I run readlines on it,
I get the following:
Unhandled exception in thread started by <bound method
InitThread.__bootstrap of <InitThread(Thread-1, stopped)>>
Traceback (most recent call last):
File "/usr/lib/python2.5/threading.py", line 462, in __bootstrap
self.__bootstrap_inner()
File "/usr/lib/python2.5/threading.py", line 499, in __bootstrap_inner
(self.getName(), _format_exc()))
File "/usr/lib/python2.5/traceback.py", line 236, in format_exc
return ''.join(format_exception(etype, value, tb, limit))
File "/usr/lib/python2.5/traceback.py", line 142, in format_exception
list = list + format_tb(tb, limit)
File "/usr/lib/python2.5/traceback.py", line 76, in format_tb
return format_list(extract_tb(tb, limit))
File "/usr/lib/python2.5/traceback.py", line 101, in extract_tb
line = linecache.getline(filename, lineno, f.f_globals)
File "/usr/lib/python2.5/linecache.py", line 14, in getline
lines = getlines(filename, module_globals)
File "/usr/lib/python2.5/linecache.py", line 40, in getlines
return updatecache(filename, module_globals)
File "/usr/lib/python2.5/linecache.py", line 113, in updatecache
for dirname in sys.path:
TypeError: 'NoneType' object is not iterable
(I use threads to allow asynchronous initialisation and sms sending,
since timeout take a while).
Do you know of any issues regarding DJango and pySerial? Should I
treat in some special way? Any idea why sys.path is None?
--
Filip Gruszczyński
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