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improve python-lttngust documentation #26

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improve python-lttngust documentation #26

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27 changes: 17 additions & 10 deletions 2.10/lttng-docs-2.10.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -5039,19 +5039,26 @@ import lttngust
import logging
import time


def add_handler_if_not_exist(logger, handler_class):
handlers = []
handlers += logger.handlers
handlers += logger.parent.handlers if logger.parent else []

if not any([handler for handler in handlers if isinstance(handler, handler_class)]):
logger.addHandler(handler_class())

def example():
logging.basicConfig()
logger = logging.getLogger('my-logger')

while True:
logger.debug('debug message')
logger.info('info message')
logger.warn('warn message')
logger.error('error message')
logger.critical('critical message')
time.sleep(1)

# keep logging to stderr even with tracing enabled
add_handler_if_not_exist(logger, logging.StreamHandler)

logger.debug('debug message')
logger.info('info message')
logger.warn('warn message')
logger.error('error message')
logger.critical('critical message')
time.sleep(1)

if __name__ == '__main__':
example()
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