Logfigure generates logging configuration for the Python logging standard library. It turns this:

log debug from all to stdout
log all from mypkg.submodule to /temp/blah.log as "%(asctime)s - %(name)s - %(levelname)s - %(message)s"

Into this:

[loggers]
keys=root,tempblahlog_DEBUG
[handlers]
keys=stdout_DEBUG,tempblahlog_DEBUG
[formatters]
keys=tempblahlog_DEBUG

[logger_root]
level=DEBUG
handlers=stdout_DEBUG

[logger_tempblahlog_DEBUG]
level=DEBUG
handlers=tempblahlog_DEBUG
qualname=mypkg.submodule

[handler_stdout_DEBUG]
level=DEBUG
class=StreamHandler
args=(sys.stdout,)

[handler_tempblahlog_DEBUG]
level=DEBUG
class=FileHandler
args=("/temp/blah.log",)
formatter=tempblahlog_DEBUG

[formatter_tempblahlog_DEBUG]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
datefmt=

The accepted format is a very simple DSL close to natural language, and configuration in the file configuration format is generated. You can also use logfigure as a library to configure logging directly from the accepted format.

Logfigure accepts a file consisting of lines that specify what to log where and in which format. The simplest configuration line is the following:

log all to null

This creates a root logger with a null handler, and all levels are logged to it. The general format accepted by logfigure is as follows:

log LEVEL from PKG to TARGET as FORMAT

LEVEL should be self-explanatory; it can be either all or one of the standard logging levels. PKG refers to the hierarchical name of the logger, which can later be used to get the logger with logging.getLogger(__name__). TARGET specifies how to log. It can be one of null (which leads to NullHandler), path to a file (FileHandler) and stdout (StreamHandler with sys.stdout as output stream). The as FORMAT part can be ommitted, which leads to the standard formatter getting used. If included, FORMAT should be a valid string formatting for a LogRecord. An example:

"%(asctime)s - %(name)s - %(levelname)s - %(message)s"

To convert a configuration file in this format, run logfigure cfg_file_path. This will print the converted data into standard out. In order to configure logging from a file, use logfigure.load_config.

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TODO

To be added in the near future:

• Email logger