On Wednesday, May 24, 2017 at 5:47:37 PM UTC-4, Peter Otten wrote:
> Tim Williams wrote:
>
> > Just as a followup, if I use 'unrepr=True' in my ConfigObj, I don't have
> > to convert the strings.
>
> I'd keep it simple and would use JSON...
I looked at JSON at first, but went with configobj because I didn't see where
it did string interpolation, which I needed for other parts of my INI file, and
I'm trying to use it to specify my log file in my handler.
Which brings me to ...
I have this stripped down INI file:
[loggng]
version = 1
level = 'INFO'
RootDir = 'TestData'
CaptureDrive = 'C:/'
LogFile = '%(CaptureDrive)s%(RootDir)s/test.log'
[[formatters]]
[[[fmt1]]]
format = '%(asctime)s: (%(levelname)s) %(message)s'
datefmt =
[[handlers]]
[[[console]]]
class = 'logging.StreamHandler'
level = 'INFO'
stream = 'ext://sys.stdout'
[[[file]]]
class = 'logging.FileHandler'
level = 'WARN'
filename = '%(LogFile)s'
#filename = 'cfg://loggng.LogFile'
[[loggers]]
[[[root]]]
level = 'INFO'
handlers = ['file','console']
When I parse the INI file with configobj:
config = configobj.ConfigObj('loggingtest.ini', unrepr=True, raise_errors=True)
config['loggng']['handlers']['file']['filename'] evaluates correctly to
C:/TestData/test.log
However, when I try to call logging.config.dictConfig() on it, the stream that
is opened on creating the logging.FileHandler object is "%(LogFile)s", not
"C:/TestData/test.log".
Stepping into the debugger, I see that the dictionary is changed in
BaseConfigurator.convert()
def convert(self, value):
"""
Convert values to an appropriate type. dicts, lists and tuples are
replaced by their converting alternatives. Strings are checked to
see if they have a conversion format and are converted if they do.
"""
if not isinstance(value, ConvertingDict) and isinstance(value, dict):
value = ConvertingDict(value)
value.configurator = self
BEFORE calling ConvertingDict(value), the value dict has the correct value for
key filename:
>>> value
{'class': 'logging.FileHandler', 'level': 'WARN', 'filename':
'C:/TestData/test.log'}
AFTER calling ConvertingDict(value):
>>> value
{'filename': '%(LogFile)s', 'class': 'logging.FileHandler', 'level': 'WARN'}
If I try to use
filename = 'cfg://loggng.LogFile'
in my INI file, I get a ValueError calling logging.config.dictConfig(config):
pydev debugger: starting (pid: 70744)
Traceback (most recent call last):
File "C:\Python34\lib\logging\config.py", line 557, in configure
handler = self.configure_handler(handlers[name])
File "C:\Python34\lib\logging\config.py", line 723, in configure_handler
kwargs = dict([(k, config[k]) for k in config if valid_ident(k)])
File "C:\Python34\lib\logging\config.py", line 723, in <listcomp>
kwargs = dict([(k, config[k]) for k in config if valid_ident(k)])
File "C:\Python34\lib\logging\config.py", line 318, in __getitem__
return self.convert_with_key(key, value)
File "C:\Python34\lib\logging\config.py", line 284, in convert_with_key
result = self.configurator.convert(value)
File "C:\Python34\lib\logging\config.py", line 455, in convert
value = converter(suffix)
File "C:\Python34\lib\logging\config.py", line 404, in cfg_convert
d = self.config[m.groups()[0]]
File "C:\Python34\lib\logging\config.py", line 317, in __getitem__
value = dict.__getitem__(self, key)
KeyError: 'loggng'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "L:\timothy.j.williams1\Documents\My
Programs\eclipse_neon\eclipse\plugins\org.python.pydev_5.3.0.201610121612\pysrc\pydevd.py",
line 1531, in <module>
globals = debugger.run(setup['file'], None, None, is_module)
File "L:\timothy.j.williams1\Documents\My
Programs\eclipse_neon\eclipse\plugins\org.python.pydev_5.3.0.201610121612\pysrc\pydevd.py",
line 938, in run
pydev_imports.execfile(file, globals, locals) # execute the script
File "L:\timothy.j.williams1\Documents\My
Programs\eclipse_neon\eclipse\plugins\org.python.pydev_5.3.0.201610121612\pysrc\_pydev_imps\_pydev_execfile.py",
line 25, in execfile
exec(compile(contents+"\n", file, 'exec'), glob, loc)
File "L:\workspace\MyPython\src\testlog.py", line 8, in <module>
logging.config.dictConfig(config)
File "C:\Python34\lib\logging\config.py", line 789, in dictConfig
dictConfigClass(config).configure()
File "C:\Python34\lib\logging\config.py", line 565, in configure
'%r: %s' % (name, e))
ValueError: Unable to configure handler 'file': 'loggng'
testlog.py:
import logging, logging.config, logging.handlers
import configobj
logconfig = configobj.ConfigObj('loggingtest.ini', unrepr=True,
raise_errors=True)
config=dict(logconfig['loggng'])
logging.config.dictConfig(config)
logger=logging.getLogger('root')
print(config['handlers']['file'])
print(logger.handlers[0].stream)
loggingtest.ini:
[loggng]
version = 1
level = 'INFO'
RootDir = 'TestData'
CaptureDrive = 'C:/'
LogFile = '%(CaptureDrive)s%(RootDir)s/test.log'
[[formatters]]
[[[fmt1]]]
format = '%(asctime)s: (%(levelname)s) %(message)s'
datefmt =
[[handlers]]
[[[console]]]
class = 'logging.StreamHandler'
level = 'INFO'
stream = 'ext://sys.stdout'
[[[file]]]
class = 'logging.FileHandler'
level = 'WARN'
filename = '%(LogFile)s'
#filename = 'cfg://loggng.LogFile'
[[loggers]]
[[[root]]]
level = 'INFO'
handlers = ['file','console']
Thanks for any help.
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