Rodrigo schrieb:
Maybe this is not a bug at all, but i have installed python2.5. 3.01
and 3.1.1. In python 2.5 ser. write('this is a string') works just
fine.
On the other hand, with 3.01 and 3.1.1 (pyserial 2.5 rc1) when i do a
ser.write('this is a string') i get the following error"
import serial
ser = serial.Serial('/dev/tty.usbserial')
ser.write('this is a string')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Frameworks/Python.framework/Versions/3.1/lib/
python3.1/site-packages/serial/serialposix.py", line 466, in write
raise TypeError('expected %s or bytearray, got %s' % (bytes, type
(data)))
TypeError: expected <class 'bytes'> or bytearray, got <class 'str'>
I honestly dont get what im doing wrong here
In Python3, the standard type for string-literals is not a byte-string,
but unicode. Thus you need to explicitly encode the passed value to a
bytes-object, as that's what is allowd for communicating with the
uoutside world.
ser.write('this is a string'.encode('utf-8'))
should do the trick.
The error-message is an abomination though...
Diez
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