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Logging package for Python. Based on PEP 282 and comments thereto in
comp.lang.python.
Copyright (C) 2001-2016 Vinay Sajip. All Rights Reserved.
To use, simply 'import logging' and log away!
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Return the textual representation of logging level 'level'.
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A LogRecord instance represents an event being logged.
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using str(msg) % args to create the message field of the record. The
record also includes information such as when the record was created,
the source line where the logging call was made, and any exception
information to be logged.
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Return the factory to be used when instantiating a log record.
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Make a LogRecord whose attributes are defined by the specified
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Formatter instances are used to convert a LogRecord to text.
Formatters need to know how a LogRecord is constructed. They are
responsible for converting a LogRecord to (usually) a string which can
be interpreted by either a human or an external system. The base
Formatter
allows a formatting string to be specified. If none is supplied, the
the style-dependent default value, "%(message)s",
"{message}", or
"${message}", is used.
The Formatter can be initialized with a format string which makes use
of
knowledge of the LogRecord attributes - e.g. the default value
mentioned
above makes use of the fact that the user's message and arguments
are pre-
formatted into a LogRecord's message attribute. Currently, the
useful
attributes in a LogRecord are described by:
%(name)s Name of the logger (logging channel)
%(levelno)s Numeric logging level for the message (DEBUG, INFO,
WARNING, ERROR, CRITICAL)
%(levelname)s Text logging level for the message
("DEBUG", "INFO",
"WARNING", "ERROR",
"CRITICAL")
%(pathname)s Full pathname of the source file where the logging
call was issued (if available)
%(filename)s Filename portion of pathname
%(module)s Module (name portion of filename)
%(lineno)d Source line number where the logging call was
issued
(if available)
%(funcName)s Function name
%(created)f Time when the LogRecord was created (time.time()
return value)
%(asctime)s Textual time when the LogRecord was created
%(msecs)d Millisecond portion of the creation time
%(relativeCreated)d Time in milliseconds when the LogRecord was
created,
relative to the time the logging module was loaded
(typically at application startup time)
%(thread)d Thread ID (if available)
%(threadName)s Thread name (if available)
%(process)d Process ID (if available)
%(message)s The result of record.getMessage(), computed just as
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Initialize the formatter with specified format strings.
Initialize the formatter either with the specified format string,
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Use a style parameter of '%', '{' or
'$' to specify that you want to
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Return the creation time of the specified LogRecord as formatted
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overridden
in formatters to provide for any specific requirement, but the
basic behaviour is as follows: if datefmt (a string) is specified,
it is used with time.strftime() to format the creation time of the
record. Otherwise, an ISO8601-like (or RFC 3339-like) format is
used.
The resulting string is returned. This function uses a
user-configurable
function to convert the creation time to a tuple. By default,
time.localtime() is used; to change this for a particular formatter
instance, set the 'converter' attribute to a function
with the same
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Format and return the specified exception information as a string.
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Format the specified record as text.
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Filter instances are used to perform arbitrary filtering of LogRecords.
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initialized with "A.B" will allow events logged by loggers
"A.B",
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Determine if a record is loggable by consulting all the filters.
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.. versionchanged:: 3.2
Allow filters to be just callables.
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Handler instances dispatch logging events to specific destinations.
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Handle errors which occur during an emit() call.
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A handler class which writes logging records, appropriately formatted,
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Emit a record.
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.. versionchanged:: 3.2
Added the ``style`` parameter.
.. versionchanged:: 3.3
Added the ``handlers`` parameter. A ``ValueError`` is now thrown for
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Perform any cleanup actions in the logging system (e.g. flushing
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This handler does nothing. It's intended to be used to avoid the
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instantiate
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Implementation of showwarnings which redirects to logging, which will
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warnings logger named "py.warnings" with level
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If capture is true, redirect all warnings to the logging package.
If capture is False, ensure that warnings are not redirected to logging
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