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Logging package for Python. Based on PEP 282 and comments thereto in
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Copyright (C) 2001-2012 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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associated levels with names using addLevelName then the name you have
associated with 'level' is returned.
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Associate 'levelName' with 'level'.
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Acquire the module-level lock for serializing access to shared data.
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A LogRecord instance represents an event being logged.
LogRecord instances are created every time something is logged. They
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record also includes information such as when the record was created,
the source line where the logging call was made, and any exception
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Initialize a logging record with interesting information.
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Return the message for this LogRecord after merging any user-supplied
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Make a LogRecord whose attributes are defined by the specified dictionary,
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Formatter instances are used to convert a LogRecord to text.
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allows a formatting string to be specified. If none is supplied, the
default value of "%s(message)\n" 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
the record is emitted
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Initialize the formatter with specified format strings.
Initialize the formatter either with the specified format string, or a
default as described above. Allow for specialized date formatting with
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Return the creation time of the specified LogRecord as formatted text.
This method should be called from format() by a formatter which
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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, the ISO8601 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 signature as
time.localtime() or time.gmtime(). To change it for all formatters,
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Format and return the specified exception information as a string.
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Check if the format uses the creation time of the record.
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Format the specified record as text.
The record's attribute dictionary is used as the operand to a
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are carried out. The message attribute of the record is computed
using LogRecord.getMessage(). If the formatting string uses the
time (as determined by a call to usesTime(), formatTime() is
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it is formatted using formatException() and appended to the message.
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A formatter suitable for formatting a number of records.
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Return the header string for the specified records.
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Return the footer string for the specified records.
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Format the specified records and return the result as a string.
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Filter instances are used to perform arbitrary filtering of LogRecords.
Loggers and Handlers can optionally use Filter instances to filter
records as desired. The base filter class only allows events which are
below a certain point in the logger hierarchy. For example, a filter
initialized with "A.B" will allow events logged by loggers "A.B",
"A.B.C", "A.B.C.D", "A.B.D" etc. but not "A.BB", "B.A.B" etc. If
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Initialize a filter.
Initialize with the name of the logger which, together with its
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Determine if the specified record is to be logged.
Is the specified record to be logged? Returns 0 for no, nonzero for
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A base class for loggers and handlers which allows them to share
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Add the specified filter to this handler.
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Remove the specified filter from this handler.
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Determine if a record is loggable by consulting all the filters.
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Remove a handler reference from the internal cleanup list.
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Add a handler to the internal cleanup list using a weak reference.
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Handler instances dispatch logging events to specific destinations.
The base handler class. Acts as a placeholder which defines the Handler
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records as desired. By default, no formatter is specified; in this case,
the 'raw' message as determined by record.message is logged.
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Initializes the instance - basically setting the formatter to None
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Acquire a thread lock for serializing access to the underlying I/O.
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Acquire the I/O thread lock.
N(R�R>(Ri((s&/sys/lib/python2.7/logging/__init__.pyR>�s cCs|jr|jj�ndS(s.
Release the I/O thread lock.
N(R�R?(Ri((s&/sys/lib/python2.7/logging/__init__.pyR?�s cCst|�|_dS(s8
Set the logging level of this handler.
N(R<R1(RiR1((s&/sys/lib/python2.7/logging/__init__.pytsetLevel�scCs(|jr|j}nt}|j|�S(s�
Format the specified record.
If a formatter is set, use it. Otherwise, use the default formatter
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Do whatever it takes to actually log the specified logging record.
This version is intended to be implemented by subclasses and so
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Conditionally emit the specified logging record.
Emission depends on filters which may have been added to the handler.
Wrap the actual emission of the record with acquisition/release of
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Set the formatter for this handler.
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Ensure all logging output has been flushed.
This version does nothing and is intended to be implemented by
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Tidy up any resources used by the handler.
This version removes the handler from an internal map of handlers,
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should ensure that this gets called from overridden close()
methods.
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Handle errors which occur during an emit() call.
This method should be called from handlers when an exception is
encountered during an emit() call. If raiseExceptions is false,
exceptions get silently ignored. This is what is mostly wanted
for a logging system - most users will not care about errors in
the logging system, they are more interested in application errors.
You could, however, replace this with a custom handler if you wish.
The record which was being processed is passed in to this method.
iiisLogged from file %s, line %s
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A handler class which writes logging records, appropriately formatted,
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Initialize the handler.
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Emit a record.
If a formatter is specified, it is used to format the record.
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exception information is present, it is formatted using
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A handler class which writes formatted logging records to disk files.
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Open the specified file and use it as the stream for logging.
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Closes the stream.
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Open the current base file with the (original) mode and encoding.
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Emit a record.
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PlaceHolder instances are used in the Manager logger hierarchy to take
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Add the specified logger as a child of this placeholder.
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Set the class to be used when instantiating a logger. The class should
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Initialize the manager with the root node of the logger hierarchy.
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Get a logger with the specified name (channel name), creating it
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If a PlaceHolder existed for the specified name [i.e. the logger
didn't exist but a child of it did], replace it with the created
logger and fix up the parent/child references which pointed to the
placeholder to now point to the logger.
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Set the class to be used when instantiating a logger with this Manager.
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Ensure that there are either loggers or placeholders all the way
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Ensure that children of the placeholder ph are connected to the
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Instances of the Logger class represent a single logging channel. A
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by a unique string. Application areas can be nested (e.g. an area
of "input processing" might include sub-areas "read CSV files", "read
XLS files" and "read Gnumeric files"). To cater for this natural nesting,
channel names are organized into a namespace hierarchy where levels are
separated by periods, much like the Java or Python package namespace. So
in the instance given above, channel names might be "input" for the upper
level, and "input.csv", "input.xls" and "input.gnu" for the sub-levels.
There is no arbitrary limit to the depth of nesting.
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Initialize the logger with a name and an optional level.
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Set the logging level of this logger.
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Log 'msg % args' with severity 'DEBUG'.
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Log 'msg % args' with severity 'INFO'.
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Log 'msg % args' with severity 'WARNING'.
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Log 'msg % args' with severity 'ERROR'.
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Convenience method for logging an ERROR with exception information.
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Log 'msg % args' with severity 'CRITICAL'.
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Log 'msg % args' with the integer severity 'level'.
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Find the stack frame of the caller so that we can note the source
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A factory method which can be overridden in subclasses to create
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Low-level logging routine which creates a LogRecord and then calls
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Call the handlers for the specified record.
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Add the specified handler to this logger.
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Remove the specified handler from this logger.
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Pass a record to all relevant handlers.
Loop through all handlers for this logger and its parents in the
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message to sys.stderr. Stop searching up the hierarchy whenever a
logger with the "propagate" attribute set to zero is found - that
will be the last logger whose handlers are called.
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Get the effective level for this logger.
Loop through this logger and its parents in the logger hierarchy,
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Is this logger enabled for level 'level'?
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Get a logger which is a descendant to this one.
This is a convenience method, such that
logging.getLogger('abc').getChild('def.ghi')
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It's useful, for example, when the parent logger is named using
__name__ rather than a literal string.
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A root logger is not that different to any other logger, except that
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Initialize the logger with the name "root".
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An adapter for loggers which makes it easier to specify contextual
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Initialize the adapter with a logger and a dict-like object which
provides contextual information. This constructor signature allows
easy stacking of LoggerAdapters, if so desired.
You can effectively pass keyword arguments as shown in the
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adapter = LoggerAdapter(someLogger, dict(p1=v1, p2="v2"))
N(RR�(RiRR�((s&/sys/lib/python2.7/logging/__init__.pyRmms cCs|j|d<||fS(s�
Process the logging message and keyword arguments passed in to
a logging call to insert contextual information. You can either
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Normally, you'll only need to override this one method in a
LoggerAdapter subclass for your specific needs.
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Delegate a debug call to the underlying logger, after adding
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Delegate an info call to the underlying logger, after adding
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Delegate a warning call to the underlying logger, after adding
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N(RhRR$(RiRERHR�((s&/sys/lib/python2.7/logging/__init__.pyR$�scOs2|j||�\}}|jj|||�dS(s�
Delegate an error call to the underlying logger, after adding
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Delegate an exception call to the underlying logger, after adding
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Delegate a critical call to the underlying logger, after adding
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N(RhRR(RiRERHR�((s&/sys/lib/python2.7/logging/__init__.pyR�scOs5|j||�\}}|jj||||�dS(s�
Delegate a log call to the underlying logger, after adding
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N(RhRR (RiR1RERHR�((s&/sys/lib/python2.7/logging/__init__.pyR �scCs|jj|�S(sR
See if the underlying logger is enabled for the specified level.
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Do basic configuration for the logging system.
This function does nothing if the root logger already has handlers
configured. It is a convenience method intended for use by simple scripts
to do one-shot configuration of the logging package.
The default behaviour is to create a StreamHandler which writes to
sys.stderr, set a formatter using the BASIC_FORMAT format string, and
add the handler to the root logger.
A number of optional keyword arguments may be specified, which can alter
the default behaviour.
filename Specifies that a FileHandler be created, using the specified
filename, rather than a StreamHandler.
filemode Specifies the mode to open the file, if filename is specified
(if filemode is unspecified, it defaults to 'a').
format Use the specified format string for the handler.
datefmt Use the specified date/time format.
level Set the root logger level to the specified level.
stream Use the specified stream to initialize the StreamHandler. Note
that this argument is incompatible with 'filename' - if both
are present, 'stream' is ignored.
Note that you could specify a stream created using open(filename, mode)
rather than passing the filename and mode in. However, it should be
remembered that StreamHandler does not close its stream (since it may be
using sys.stdout or sys.stderr), whereas FileHandler closes its stream
when the handler is closed.
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Return a logger with the specified name, creating it if necessary.
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Log a message with severity 'CRITICAL' on the root logger.
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Log a message with severity 'ERROR' on the root logger.
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Log a message with severity 'ERROR' on the root logger,
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Log a message with severity 'WARNING' on the root logger.
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Log 'msg % args' with the integer severity 'level' on the root logger.
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Disable all logging calls of severity 'level' and below.
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Perform any cleanup actions in the logging system (e.g. flushing
buffers).
Should be called at application exit.
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This handler does nothing. It's intended to be used to avoid the
"No handlers could be found for logger XXX" one-off warning. This is
important for library code, which may contain code to log events. If a user
of the library does not configure logging, the one-off warning might be
produced; to avoid this, the library developer simply needs to instantiate
a NullHandler and add it to the top-level logger of the library module or
package.
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Implementation of showwarnings which redirects to logging, which will first
check to see if the file parameter is None. If a file is specified, it will
delegate to the original warnings implementation of showwarning. Otherwise,
it will call warnings.formatwarning and will log the resulting string to a
warnings logger named "py.warnings" with level logging.WARNING.
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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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