sardanamodulemanager

This module is part of the Python Sardana library. It defines the base classes for module manager

Classes

ModuleManager

ModuleManager

class ModuleManager(*p, **k)

This class handles python module loading/reloading and unloading.

init(*args, **kwargs)

Singleton instance initialization.

reInit()

cleanUp()

The cleanUp. Default implementation does nothing Overwrite when necessary

reset_python_path()

remove_python_path(path_id)

add_python_path(path)

findFullModuleName(module_name, path=None)

isValidModule(module_name, path=None)

Method to verify is a module is loadable.

reloadModule(module_name, path=None, reload=True)

Loads/reloads the given module name

deep_reload_module(module_name, path=None, exclude=None)

loadModule(module_name, path=None)

Loads the given module name. If the module has been already loaded into this python interpreter, nothing is done.

Parameters:

• module_name (str) – the module to be loaded.

• path (seq<str> or None) – list of paths to look for modules [default: None]

Returns:

python module

Raises:

ImportError

unloadModule(module_name)

Unloads the given module name

unloadModules(module_list=None)

Unloads the given module name

getModule(module_name)

Returns the module object for the given module name

getModuleNames()

Critical = 50

Critical message level (constant)

Debug = 10

Debug message level (constant)

DftLogFormat = <logging.Formatter object>

Default log format (constant)

DftLogLevel = 20

Default log level (constant)

DftLogMessageFormat = '%(threadName)-14s %(levelname)-8s %(asctime)s %(name)s: %(message)s'

Default log message format (constant)

Error = 40

Error message level (constant)

Fatal = 50

Fatal message level (constant)

Info = 20

Info message level (constant)

Trace = 5

Trace message level (constant)

Warning = 30

Warning message level (constant)

addChild(child)

Adds a new logging child

Parameters:

child (logging.Logger) – the new child

classmethod addLevelName(level_no, level_name)

Registers a new log level

Parameters:

• level_no (int) – the level number

• level_name (str) – the corresponding name

addLogHandler(handler)

Registers a new handler in this object’s logger

Parameters:

handler (logging.Handler) – the new handler to be added

classmethod addRootLogHandler(h)

Adds a new handler to the root logger

Parameters:

h (logging.Handler) – the new log handler

call__init__(klass, *args, **kw)

Method to be called from subclasses to call superclass corresponding __init__ method. This method ensures that classes from diamond like class hierarquies don’t call their super classes __init__ more than once.

call__init__wo_kw(klass, *args)

Same as call__init__ but without keyword arguments because PyQt4 does not support them.

changeLogName(name)

Change the log name for this object.

Parameters:

name (str) – the new log name

copyLogHandlers(other)

Copies the log handlers of other object to this object

Parameters:

other (object) – object which contains ‘log_handlers’

critical(msg, *args, **kw)

Record a critical message in this object’s logger. Accepted args and kwargs* are the same as logging.Logger.critical().

Parameters:

• msg (str) – the message to be recorded

• args – list of arguments

• kw – list of keyword arguments

debug(msg, *args, **kw)

Record a debug message in this object’s logger. Accepted args and kwargs are the same as logging.Logger.debug().

Parameters:

• msg (str) – the message to be recorded

• args – list of arguments

• kw – list of keyword arguments

deprecated(msg=None, dep=None, alt=None, rel=None, dbg_msg=None, _callerinfo=None, **kw)

Record a deprecated warning message in this object’s logger. If message is not passed, a estandard deprecation message is constructued using dep, alt, rel arguments. Also, an extra debug message can be recorded, followed by traceback info.

Parameters:

• msg (str) – the message to be recorded (if None passed, it will be constructed using dep (and, optionally, alt and rel)

• dep (str) – name of deprecated feature (in case msg is None)

• alt (str) – name of alternative feature (in case msg is None)

• rel (str) – name of release from which the feature was deprecated (in case msg is None)

• dbg_msg (str) – msg for debug (or None to log only the warning)

• _callerinfo – for internal use only. Do not use this argument.

• kw – any additional keyword arguments, are passed to logging.Logger.warning()

classmethod disableLogOutput()

Disables the logging.StreamHandler which dumps log records, by default, to the stderr.

classmethod enableLogOutput()

Enables the logging.StreamHandler which dumps log records, by default, to the stderr.

error(msg, *args, **kw)

Record an error message in this object’s logger. Accepted args and kwargs are the same as logging.Logger.error().

Parameters:

• msg (str) – the message to be recorded

• args – list of arguments

• kw – list of keyword arguments

exception(msg, *args)

Log a message with severity ‘ERROR’ on the root logger, with exception information.. Accepted args are the same as logging.Logger.exception().

Parameters:

• msg (str) – the message to be recorded

• args – list of arguments

fatal(msg, *args, **kw)

Record a fatal message in this object’s logger. Accepted args and kwargs are the same as logging.Logger.fatal().

Parameters:

• msg (str) – the message to be recorded

• args – list of arguments

• kw – list of keyword arguments

flushOutput()

Flushes the log output

getAttrDict()

getChildren()

Returns the log children for this object

Returns:

the list of log children

Return type:

sequence<logging.Logger

classmethod getLogFormat()

Retuns the current log message format (the root log format)

Returns:

the log message format

Return type:

str

getLogFullName()

Gets the full log name for this object

Returns:

the full log name

Return type:

str

classmethod getLogLevel()

Retuns the current log level (the root log level)

Returns:

a number representing the log level

Return type:

int

getLogName()

Gets the log name for this object

Returns:

the log name

Return type:

str

getLogObj()

Returns the log object for this object

Returns:

the log object

Return type:

logging.Logger

classmethod getLogger(name=None)

getParent()

Returns the log parent for this object or None if no parent exists

Returns:

the log parent for this object

Return type:

logging.Logger or None

classmethod getRootLog()

Retuns the root logger

Returns:

the root logger

Return type:

logging.Logger

info(msg, *args, **kw)

Record an info message in this object’s logger. Accepted args and kwargs are the same as logging.Logger.info().

Parameters:

• msg (str) – the message to be recorded

• args – list of arguments

• kw – list of keyword arguments

classmethod initRoot()

Class method to initialize the root logger. Do NOT call this method directly in your code

log(level, msg, *args, **kw)

Record a log message in this object’s logger. Accepted args and kwargs are the same as logging.Logger.log().

Parameters:

• level (int) – the record level

• msg (str) – the message to be recorded

• args – list of arguments

• kw – list of keyword arguments

log_format = <logging.Formatter object>

Default log message format

log_level = 20

Current global log level

removeLogHandler(handler)

Removes the given handler from this object’s logger

Parameters:

handler (logging.Handler) – the handler to be removed

classmethod removeRootLogHandler(h)

Removes the given handler from the root logger

Parameters:

h (logging.Handler) – the handler to be removed

classmethod resetLogFormat()

Resets the log message format (the root log format)

classmethod resetLogLevel()

Resets the log level (the root log level)

root_init_lock = <unlocked _thread.lock object>

Internal usage

root_inited = True

Internal usage

classmethod setLogFormat(format)

sets the new log message format

Parameters:

format (str) – the new log message format

classmethod setLogLevel(level)

sets the new log level (the root log level)

Parameters:

level (int) – the new log level

stack(target=5)

Log the usual stack information, followed by a listing of all the local variables in each frame.

Parameters:

target (int) – the log level assigned to the record

Returns:

The stack string representation

Return type:

str

stream_handler = <StreamHandler <stderr> (NOTSET)>

the main stream handler

syncLog()

Synchronises the log output

trace(msg, *args, **kw)

Record a trace message in this object’s logger. Accepted args and kwargs are the same as logging.Logger.log().

Parameters:

• msg (str) – the message to be recorded

• args – list of arguments

• kw – list of keyword arguments

traceback(level=5, extended=True)

Log the usual traceback information, followed by a listing of all the local variables in each frame.

Parameters:

• level (int) – the log level assigned to the traceback record

• extended (bool) – if True, the log record message will have multiple lines

Returns:

The traceback string representation

Return type:

str

updateAttrDict(other)

warning(msg, *args, **kw)

Record a warning message in this object’s logger. Accepted args and kwargs* are the same as logging.Logger.warning().

Parameters:

• msg (str) – the message to be recorded

• args – list of arguments

• kw – list of keyword arguments