On 12/23/2012 08:46 AM, KarlE wrote:
On Saturday, December 22, 2012 9:36:41 PM UTC+1, KarlE wrote:
Hi!
Im totally new to Python, and im using it on my Raspberry pi. I found a program
that sends an email, and one that checks the temperature of my CPU, but i cant
seem to combine the to into the funktion that i want, sending me the CPU temp
via Email.
The two programs work very well on their own, but this doesnt work.
this works: server.sendmail(fromaddr, toaddrs, msg)
but this doesnt: server.sendmail(fromaddr, toaddrs, cpu_temperature)
despite the command "print cputemp" working in the same program.
When i run the program i get the error:
Traceback (most recent call last):
File "sendcpu.py", line 36, in <module>
msg = cpu_temperature
NameError: name 'cpu_temperature' is not defined
Does anyone know why the program claims that cpu_temperature isnt defined, when
it is?
Thanx!
//Alexander
Ok, im back with a little more understanding of python! I got the program
working, every time my Raspberry Pi reboots i get an Email containing
information about the boot and the CPU temperature.
The issue now is that there seems to be a limitation to how long the message string can
be, about 32 letters. The code below works well, but when i add more letters to the
string "ord" and pass about 32 in size the email comes through emptpy...
I cant find any information about limitations to strings in Python, or the
email module. can anyone give me a pointer?
(the code lines my appear with different tabbings due to beeing copied from my
raspberry pi with Putty, but this is not an issue, all the lines are on the
same tab)
#!/usr/bin/env python
from __future__ import division
from subprocess import PIPE, Popen
import psutil
import smtplib
def get_cpu_temperature():
process = Popen(['vcgencmd', 'measure_temp'], stdout=PIPE)
output, _error = process.communicate()
return float(output[output.index('=') + 1:output.rindex("'")])
def main():
cpu_temperature = get_cpu_temperature()
cpu_usage = psutil.cpu_percent()
ram = psutil.phymem_usage()
ram_percent_used = ram.percent
disk = psutil.disk_usage('/')
disk_percent_used = disk.percent
print 'CPU temperature: ', cpu_temperature
fromaddr = 'xxx'
toaddrs = 'xxx'
username = 'xxx'
password = 'xxx'
ord = "Subject: Pi Boot, CPU: " + str(cpu_temperature)
print len(ord)
server = smtplib.SMTP('smtp.gmail.com:587')
server.starttls()
server.login(username,password)
server.sendmail(fromaddr, toaddrs, ord)
server.quit()
main()
I'm not sure if Raspberry Pi has it, but usually you want to
use the email module, as in example on this page:
http://docs.python.org/2/library/email-examples.html#email-examples
I think what happens is that because your message starts
with 'Subject:', it's interpreted as subject header instead of
an email. You can try adding two newlines after Subject:,
that might help... but using email module is best if possible.
-m
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