Dear Python Experts,
With the below code snippet, I am seeing the below error, I am using
python 3.6, could you please what could be the issue?
Code Snippet:
-------------------
import time
import pexpect
import subprocess
import sys
class BluetoothctlError(Exception):
"""This exception is raised, when bluetoothctl fails to start."""
pass
class Bluetoothctl:
"""A wrapper for bluetoothctl utility."""
def __init__(self):
out = subprocess.check_output("rfkill unblock bluetooth", shell = True)
self.child = pexpect.spawn("bluetoothctl", echo = False)
def get_output(self, command, pause = 0):
"""Run a command in bluetoothctl prompt, return output as a
list of lines."""
self.child.send(command + "\n")
time.sleep(pause)
start_failed = self.child.expect(["bluetooth", pexpect.EOF])
if start_failed:
raise BluetoothctlError("Bluetoothctl failed after running
" + command)
return self.child.before.split("\r\n")
------------------------------------------------------------------------------->
the issue seems to be here
def start_scan(self):
"""Start bluetooth scanning process."""
try:
out = self.get_output("scan on")
except BluetoothctlError as e:
print(e)
return None
if __name__ == "__main__":
print("Init bluetooth...")
bl = Bluetoothctl()
print("Ready!")
bl.start_scan()
print("Scanning for 10 seconds...")
for i in range(0, 10):
print(i)
time.sleep(1)
Error Logs:
-------------
/home/srinivasan/Downloads/bt_tests/qa/venv/bin/python
/home/srinivasan/Downloads/bt_tests/qa/test_library/bt_tests.py
Init bluetooth...
Ready!
Traceback (most recent call last):
File "/home/srinivasan/Downloads/bt_tests/qa/test_library/bt_tests.py",
line 169, in <module>
bl.start_scan()
File "/home/srinivasan/Downloads/bt_tests/qa/test_library/bt_tests.py",
line 32, in start_scan
out = self.get_output("scan on")
File "/home/srinivasan/Downloads/bt_tests/qa/test_library/bt_tests.py",
line 27, in get_output
return self.child.before.split("\r\n")
TypeError: a bytes-like object is required, not 'str'
Process finished with exit code 1
On Wed, Nov 28, 2018 at 12:17 AM Mats Wichmann <m...@wichmann.us> wrote:
>
> On 11/27/18 5:50 AM, srinivasan wrote:
> > Dear Python Experts,
> >
> > As still I am newbie and learning python, I am trying to reuse the
> > Bluetoothctl wrapper in Python from the link (
> > https://gist.github.com/egorf/66d88056a9d703928f93) I am using python3.6
> > version, In pycharm editor on the bold highlighted code snippets I see the
> > error message "Python version 3.6 does not support this syntax.",
>
> once again you've posted in a way that inserts lots of extra crud, you
> avoided that last time.
>
> The syntax change is simple (and works on most older Pythons too):
>
> except ErrorType, e:
>
> becomes
>
> except ErrorType as e:
>
>
> >
> > Could you please how help me how the below highlighted lines of code can be
> > can be ported to python3.6 version?
> >
> > * except BluetoothctlError, e:*
> >
> > * print(e)*
> > * return None*
> >
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