Error on running pihealth.py

[ghost]

Traceback (most recent call last): File "pihealth.py", line 80, in <module> main() File "pihealth.py", line 27, in main cpu_temperature = get_cpu_temperature() File "pihealth.py", line 21, in get_cpu_temperature return float(output[output.index('=') + 1:output.rindex("'")]) ValueError: substring not found

Raspberry Pi B+
Linux 30ir000 4.1.13+ #826 PREEMPT Fri Nov 13 20:13:22 GMT 2015 armv6l GNU/Linux
PRETTY_NAME="Raspbian GNU/Linux 7 (wheezy)"
NAME="Raspbian GNU/Linux"
VERSION_ID="7"
VERSION="7 (wheezy)"
ID=raspbian
ID_LIKE=debian
ANSI_COLOR="1;31"
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

[jrbail01]

When you run the command:

vcgencmd measure_temp

do you get a response?

[ghost]

VCHI initialization failed

[jrbail01]

Looks like other people have had this issue with vcgencmd in the past (e.g. https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=50262). You can try some of the solutions other people have found or you can simply comment out the python lines that are grabbing CPU temperature (lines 27-32).

[ghost]

sudo vcgencmd measure_temp gives the correct result. Permissions on /dev/vchiq are correct. I will look for another solution and send feedback.

[jrbail01]

Have you tried running the Python script with sudo?

sudo python pihealth.py

[ghost]

That’s what i do now and that works. It’s a system that is exposed to the
internet, so having a script running as root is not my preference, but
anyway, now it works.

On Sat, Aug 13, 2016 at 6:18 PM, jrbail01 [email protected] wrote:

Have you tried running the Python script with sudo?

sudo python pihealth.py

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[Horcrux82]

Traceback (most recent call last): File "pihealth.py", line 80, in <module> main() File "pihealth.py", line 27, in main cpu_temperature = get_cpu_temperature() File "pihealth.py", line 21, in get_cpu_temperature return float(output[output.index('=') + 1:output.rindex("'")]) TypeError: Type str doesn't support the buffer API

Error i got when trying to run the pihealth.py file

[Richard238]

vcgencmd measure_temp works OK.
As suggested by @jrbail01 above, the workaround is to comment out the CPU temp lines.
What's the proper fix for this, please, so I get CPU temp on I.S?

Here's a working, proper fix:

Line 21

#    return float(output[output.index('=') + 1:output.rindex("'")])
     return float(output[output.index(ord('=')) + 1:output.rindex(ord("'"))])

Credit to https://forums.pimoroni.com/t/enviro-plus-examples-error/11080/2