I am really new to python and am trying to learn it to do some projects. I
wanted to perform a simple task and am having some trouble with it. I run
linux in a vm on a windows laptop for work. I have my laptop screen and an
external monitor. I move my Ubuntu VM back and forth depending on what I am
working on so I wanted to write a little python script that changed the
resolutions depending on what the current resolution is.
I have:
#! /usr/bin/python
import sys
import os
import re
re_currentResolution = re.compile(r'current \d{4}\sx\s\d{3,4}')
xrandr_output = os.popen('xrandr').readlines()
currentRes = re_currentResolution.search(xrandr_output)
print currentRes.group(0)
I just want to grab the xrandr output as a string and parse it with the
regex. This will give me a string with the current resolution, for instance
"current 1024 x 768". I would then split that up and call back to the
os.system('xrandr -s 1280x1024'). If the resolution was "current 1280 x
1024" then I would parse that and call back to os.system('xrandr -s
1024x768').
However, when I try the line (as in the code above):
currentRes = re_currentResolution.search(xrandr_output)
it is complaining that xrandr_output is not a string. (however, if I do a
print xrandr_output it prints fine)
I instead get the following error:
Traceback (most recent call last):
File "change_res.py", line 9, in <module>
currentRes = re_currentResolution.search(xrandr_output)
TypeError: expected string or buffer
What am I doing wrong?
Thanks.
Kevin
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