The right way to output an error message from a Python library
I now have in my Python code:
sys.stderr.write("Iteration stopped to avoid infinite loop.n")
but this code always writes to stderr no matter what the client of the code wants.
I would use a logger instead, but that would output to stderr a message like:
:INFO:main:Iteration stopped to avoid infinite loop.
instead of
Iteration stopped to avoid infinite loop.
I do not want :INFO:main: for this particular message.
So my questions:
Can I configure a logger to not output
:INFO:main:?What else except Python logger can I use?
If there is no such class in Python installations, then what should be the interface of my own logger class? Should it be like
class MyLogger(object):
@abstractmethod
def log(msg):
pass
or what may I miss (maybe add some other methods, maybe some additional log() arguments)?
python logging stderr
asked Nov 14 '18 at 20:00
portonporton
1,82032242
add a comment |
I now have in my Python code:
sys.stderr.write("Iteration stopped to avoid infinite loop.n")
but this code always writes to stderr no matter what the client of the code wants.
I would use a logger instead, but that would output to stderr a message like:
:INFO:main:Iteration stopped to avoid infinite loop.
instead of
Iteration stopped to avoid infinite loop.
I do not want :INFO:main: for this particular message.
So my questions:
Can I configure a logger to not output
:INFO:main:?What else except Python logger can I use?
If there is no such class in Python installations, then what should be the interface of my own logger class? Should it be like
class MyLogger(object):
@abstractmethod
def log(msg):
pass
or what may I miss (maybe add some other methods, maybe some additional log() arguments)?
python logging stderr
asked Nov 14 '18 at 20:00
portonporton
1,82032242
1
Did you look into logging's configuration at all? You can set up whatever template you want
– jonrsharpe
Nov 14 '18 at 20:12
add a comment |
I now have in my Python code:
sys.stderr.write("Iteration stopped to avoid infinite loop.n")
but this code always writes to stderr no matter what the client of the code wants.
I would use a logger instead, but that would output to stderr a message like:
:INFO:main:Iteration stopped to avoid infinite loop.
instead of
Iteration stopped to avoid infinite loop.
I do not want :INFO:main: for this particular message.
So my questions:
Can I configure a logger to not output
:INFO:main:?What else except Python logger can I use?
If there is no such class in Python installations, then what should be the interface of my own logger class? Should it be like
class MyLogger(object):
@abstractmethod
def log(msg):
pass
or what may I miss (maybe add some other methods, maybe some additional log() arguments)?
python logging stderr
asked Nov 14 '18 at 20:00
portonporton
1,82032242
I now have in my Python code:
sys.stderr.write("Iteration stopped to avoid infinite loop.n")
but this code always writes to stderr no matter what the client of the code wants.
I would use a logger instead, but that would output to stderr a message like:
:INFO:main:Iteration stopped to avoid infinite loop.
instead of
Iteration stopped to avoid infinite loop.
I do not want :INFO:main: for this particular message.
So my questions:
Can I configure a logger to not output
:INFO:main:?What else except Python logger can I use?
If there is no such class in Python installations, then what should be the interface of my own logger class? Should it be like
class MyLogger(object):
@abstractmethod
def log(msg):
pass
or what may I miss (maybe add some other methods, maybe some additional log() arguments)?
python logging stderr
python logging stderr
asked Nov 14 '18 at 20:00
portonporton
1,82032242
asked Nov 14 '18 at 20:00
portonporton
1,82032242
asked Nov 14 '18 at 20:00
portonporton
1,82032242
asked Nov 14 '18 at 20:00
portonporton
1,82032242
asked Nov 14 '18 at 20:00
portonporton
1,82032242
1,82032242
1
Did you look into logging's configuration at all? You can set up whatever template you want
– jonrsharpe
Nov 14 '18 at 20:12
add a comment |
1
Did you look into logging's configuration at all? You can set up whatever template you want
– jonrsharpe
Nov 14 '18 at 20:12
1
1
Did you look into logging's configuration at all? You can set up whatever template you want
– jonrsharpe
Nov 14 '18 at 20:12
Did you look into logging's configuration at all? You can set up whatever template you want
– jonrsharpe
Nov 14 '18 at 20:12
add a comment |
1 Answer
1
active
oldest
votes
You can modify basicConfig to change the error message
import logging
logging.basicConfig(format='%(message)s')
logging.warning("Iteration stopped to avoid infinite loop.")
answered Nov 14 '18 at 20:17
FaquarlFaquarl
31719
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can modify basicConfig to change the error message
import logging
logging.basicConfig(format='%(message)s')
logging.warning("Iteration stopped to avoid infinite loop.")
answered Nov 14 '18 at 20:17
FaquarlFaquarl
31719
add a comment |
You can modify basicConfig to change the error message
import logging
logging.basicConfig(format='%(message)s')
logging.warning("Iteration stopped to avoid infinite loop.")
answered Nov 14 '18 at 20:17
FaquarlFaquarl
31719
add a comment |
You can modify basicConfig to change the error message
import logging
logging.basicConfig(format='%(message)s')
logging.warning("Iteration stopped to avoid infinite loop.")
answered Nov 14 '18 at 20:17
FaquarlFaquarl
31719
You can modify basicConfig to change the error message
import logging
logging.basicConfig(format='%(message)s')
logging.warning("Iteration stopped to avoid infinite loop.")
answered Nov 14 '18 at 20:17
FaquarlFaquarl
31719
edited Nov 14 '18 at 20:24
answered Nov 14 '18 at 20:17
FaquarlFaquarl
31719
answered Nov 14 '18 at 20:17
FaquarlFaquarl
31719
answered Nov 14 '18 at 20:17
FaquarlFaquarl
31719
31719
add a comment |
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Did you look into logging's configuration at all? You can set up whatever template you want
– jonrsharpe
Nov 14 '18 at 20:12