Move facedancer logging to a sub-logger of the python root

Issue originally reported in #51
Initial pull-request in #52

Closes #51
Closes #52

facedancer/logging.py

@@ -0,0 +1,36 @@
+import functools
+import logging
+import sys
+
+
+LOGLEVEL_TRACE = logging.DEBUG + 2
+
+LOG_FORMAT_COLOR = "\u001b[37;1m%(levelname)-8s| \u001b[0m\u001b[1m%(module)-15s|\u001b[0m %(message)s"
+LOG_FORMAT_PLAIN = "%(levelname)-8s| %(module)-15s| %(message)s"
+
+
+def configure_default_logging(level=logging.INFO, logger=logging):
+    if sys.stdout.isatty():
+        log_format = LOG_FORMAT_COLOR
+    else:
+        log_format = LOG_FORMAT_PLAIN
+
+    logger.basicConfig(level=level, format=log_format)
+    logging.getLogger("facedancer").level = level
+
+
+def _initialize_logging():
+    # add a TRACE level to logging
+    logging.TRACE = LOGLEVEL_TRACE
+    logging.addLevelName(logging.TRACE, "TRACE")
+    logging.Logger.trace = functools.partialmethod(logging.Logger.log, logging.TRACE)
+    logging.trace = functools.partial(logging.log, logging.TRACE)
+
+    # Configure facedancer logger
+    logger = logging.getLogger("facedancer")
+    logger.level = logging.WARN
+
+    return logger
+
+
+log = _initialize_logging()