How to do an optional argument in logging formatter
1
I would like to use the following log formatter:
'format': '"message": "%(message)s", "user": "%(user)s"'
However, I'd like to call it in two different ways:
log.info('hi', extra="user": str(request.user))
log.info("hi")
The first log statement works because it has the user kwarg, but the second one fails with a KeyError. Is there any way to make a formatting argument optional?
python logging
asked Nov 13 '18 at 22:13
David LDavid L
38516
add a comment |
1
I would like to use the following log formatter:
'format': '"message": "%(message)s", "user": "%(user)s"'
However, I'd like to call it in two different ways:
log.info('hi', extra="user": str(request.user))
log.info("hi")
The first log statement works because it has the user kwarg, but the second one fails with a KeyError. Is there any way to make a formatting argument optional?
python logging
asked Nov 13 '18 at 22:13
David LDavid L
38516
Off the top of my head I think you'll have to write yourself a custom Formatter that knows how to respond if it gets aKeyError, but there might be an easier way.
– Adam Smith
Nov 13 '18 at 22:17
What's wrong withextra="user": None?
– Bakuriu
Nov 13 '18 at 22:18
@Bakuriu sometimes I'll be calling this from outside the application -- so for backwards compatibility as well.
– David L
Nov 13 '18 at 22:19
1
See thisCustomAdapterexample in the logging cookbook. You can useself.extra.get('user')to default it toNonewhen not supplied.
– aneroid
Nov 14 '18 at 1:40
add a comment |
1
1
1
I would like to use the following log formatter:
'format': '"message": "%(message)s", "user": "%(user)s"'
However, I'd like to call it in two different ways:
log.info('hi', extra="user": str(request.user))
log.info("hi")
The first log statement works because it has the user kwarg, but the second one fails with a KeyError. Is there any way to make a formatting argument optional?
python logging
asked Nov 13 '18 at 22:13
David LDavid L
38516
I would like to use the following log formatter:
'format': '"message": "%(message)s", "user": "%(user)s"'
However, I'd like to call it in two different ways:
log.info('hi', extra="user": str(request.user))
log.info("hi")
The first log statement works because it has the user kwarg, but the second one fails with a KeyError. Is there any way to make a formatting argument optional?
python logging
python logging
asked Nov 13 '18 at 22:13
David LDavid L
38516
asked Nov 13 '18 at 22:13
David LDavid L
38516
asked Nov 13 '18 at 22:13
David LDavid L
38516
asked Nov 13 '18 at 22:13
David LDavid L
38516
asked Nov 13 '18 at 22:13
David LDavid L
38516
38516
Off the top of my head I think you'll have to write yourself a custom Formatter that knows how to respond if it gets aKeyError, but there might be an easier way.
– Adam Smith
Nov 13 '18 at 22:17
What's wrong withextra="user": None?
– Bakuriu
Nov 13 '18 at 22:18
@Bakuriu sometimes I'll be calling this from outside the application -- so for backwards compatibility as well.
– David L
Nov 13 '18 at 22:19
1
See thisCustomAdapterexample in the logging cookbook. You can useself.extra.get('user')to default it toNonewhen not supplied.
– aneroid
Nov 14 '18 at 1:40
add a comment |
Off the top of my head I think you'll have to write yourself a custom Formatter that knows how to respond if it gets aKeyError, but there might be an easier way.
– Adam Smith
Nov 13 '18 at 22:17
What's wrong withextra="user": None?
– Bakuriu
Nov 13 '18 at 22:18
@Bakuriu sometimes I'll be calling this from outside the application -- so for backwards compatibility as well.
– David L
Nov 13 '18 at 22:19
1
See thisCustomAdapterexample in the logging cookbook. You can useself.extra.get('user')to default it toNonewhen not supplied.
– aneroid
Nov 14 '18 at 1:40
Off the top of my head I think you'll have to write yourself a custom Formatter that knows how to respond if it gets a
KeyError, but there might be an easier way.– Adam Smith
Nov 13 '18 at 22:17
Off the top of my head I think you'll have to write yourself a custom Formatter that knows how to respond if it gets a
KeyError, but there might be an easier way.– Adam Smith
Nov 13 '18 at 22:17
What's wrong with
extra="user": None?– Bakuriu
Nov 13 '18 at 22:18
What's wrong with
extra="user": None?– Bakuriu
Nov 13 '18 at 22:18
@Bakuriu sometimes I'll be calling this from outside the application -- so for backwards compatibility as well.
– David L
Nov 13 '18 at 22:19
@Bakuriu sometimes I'll be calling this from outside the application -- so for backwards compatibility as well.
– David L
Nov 13 '18 at 22:19
1
1
See this
CustomAdapter example in the logging cookbook. You can use self.extra.get('user') to default it to None when not supplied.– aneroid
Nov 14 '18 at 1:40
See this
CustomAdapter example in the logging cookbook. You can use self.extra.get('user') to default it to None when not supplied.– aneroid
Nov 14 '18 at 1:40
add a comment |
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Off the top of my head I think you'll have to write yourself a custom Formatter that knows how to respond if it gets a
KeyError, but there might be an easier way.– Adam Smith
Nov 13 '18 at 22:17
What's wrong with
extra="user": None?– Bakuriu
Nov 13 '18 at 22:18
@Bakuriu sometimes I'll be calling this from outside the application -- so for backwards compatibility as well.
– David L
Nov 13 '18 at 22:19
1
See this
CustomAdapterexample in the logging cookbook. You can useself.extra.get('user')to default it toNonewhen not supplied.– aneroid
Nov 14 '18 at 1:40