You might want to have a look at pysimplelog. It's pure python, very simple to use, pip installable and provides what you need
from pysimplelog import Logger
L=Logger()
print L
>>> Logger (Version 0.2.1)
>>> log type |log name |level |std flag |file flag |
>>> ----------|----------|----------|----------|----------|
>>> debug |DEBUG |0.0 |True |True |
>>> info |INFO |10.0 |True |True |
>>> warn |WARNING |20.0 |True |True |
>>> error |ERROR |30.0 |True |True |
>>> critical |CRITICAL |100.0 |True |True |
L.info('I am an info')
>>> 2016-09-26 15:01:17 - logger I am an info
L.warn('I am a warning')
>>> 2016-09-26 15:01:17 - logger I am a warning
L.error('I am an error')
>>> 2016-09-26 15:01:17 - logger I am an error
and with those parameters, a 'simplelog.log' file will be created and updated automatically for you
