log.py

Show various ways to use the log and control it.

## \example log.py
# Show various ways to use the log and control it.

import IMP
import sys

IMP.setup_from_argv(sys.argv, "Log example")

class DummyObject(IMP.Object):

    def __init__(self):
        IMP.Object.__init__(self, "DummyObject%1%")

    def add_log(self):
        # Temporarily (for the duration of the 'with' block) set the
        # log level and context.
        # these are done by the IMP_OBJECT_LOG macro in C++
        with IMP.SetLogState(self.get_log_level()):
            with IMP.CreateLogContext(self.get_name() + "::add_log"):
                self.set_was_used(True)
                IMP.add_to_log(IMP.VERBOSE,
                               "A verbose message in the object\n")

# we can set the log level for all of IMP
IMP.set_log_level(IMP.TERSE)

# we can tell it to print the time each event occurs
IMP.set_log_timer(True)

# we can create a log context (valid for the duration of the 'with' block)
with IMP.CreateLogContext("my context"):

    # we can print a message
    IMP.add_to_log(IMP.TERSE, "This is my log message\n")

    o = DummyObject()
    o.set_log_level(IMP.VERBOSE)
    o.add_log()