def _setup_log():
from usb import _debug
logger = logging.getLogger("usb")
debug_level = os.getenv("PYUSB_DEBUG_LEVEL")
if debug_level is not None:
_debug.enable_tracing(True)
filename = os.getenv("PYUSB_LOG_FILENAME")
LEVELS = {
"debug": logging.DEBUG,
"info": logging.INFO,
"warning": logging.WARNING,
"error": logging.ERROR,
"critical": logging.CRITICAL,
}
level = LEVELS.get(debug_level, logging.CRITICAL + 10)
logger.setLevel(level=level)
try:
handler = logging.FileHandler(filename)
except:
handler = logging.StreamHandler()
fmt = logging.Formatter("%(asctime)s %(levelname)s:%(name)s:%(message)s")
handler.setFormatter(fmt)
logger.addHandler(handler)
else:
class NullHandler(logging.Handler):
def emit(self, record):
pass
# We set the log level to avoid delegation to the
# parent log handler (if there is one).
# Thanks to Chris Clark to pointing this out.
logger.setLevel(logging.CRITICAL + 10)
logger.addHandler(NullHandler())
def _setup_log():
from usb import _debug
logger = logging.getLogger('usb')
debug_level = os.getenv('PYUSB_DEBUG')
if debug_level is not None:
_debug.enable_tracing(True)
filename = os.getenv('PYUSB_LOG_FILENAME')
LEVELS = {
'debug': logging.DEBUG,
'info': logging.INFO,
'warning': logging.WARNING,
'error': logging.ERROR,
'critical': logging.CRITICAL
}
level = LEVELS.get(debug_level, logging.CRITICAL + 10)
logger.setLevel(level=level)
try:
handler = logging.FileHandler(filename)
except:
handler = logging.StreamHandler()
fmt = logging.Formatter(
'%(asctime)s %(levelname)s:%(name)s:%(message)s')
handler.setFormatter(fmt)
logger.addHandler(handler)
else:
class NullHandler(logging.Handler):
def emit(self, record):
pass
# We set the log level to avoid delegation to the
# parent log handler (if there is one).
# Thanks to Chris Clark to pointing this out.
logger.setLevel(logging.CRITICAL + 10)
logger.addHandler(NullHandler())