added contextmanager for ignoring specific log messages

slic/utils/__init__.py

@@ -11,6 +11,7 @@ from .eval import arithmetic_eval, defaulting_eval, forgiving_eval
 from .exceptions import ChainedException, printable_exception, printed_exception
 from .ipy import devices
 from .jsonext import json_save, json_load, json_validate
+from .logign import ignore_log_msg
 from .marker import Marker, markers
 from .namespace import Namespace
 from .npy import nice_linspace, nice_arange, fraction_to_percentage, within, within_fraction, get_dtype, get_shape, is_array

slic/utils/logign.py

@@ -0,0 +1,49 @@
+import logging
+from contextlib import contextmanager
+
+
+#MISSING_TYPE = "'type' channel field not found. Parse as 64-bit floating-point number float64 (default)."
+#with source(channels=channels, receive_timeout=-1) as src:
+#    with ignore_log_msg("bsread.data.helpers", lvl=logging.WARNING, msg=MISSING_TYPE):
+#        src.receive()
+
+
+def ignore_log_msg(log, lvl=None, msg=None):
+    """
+    ignore log messages with matching lvl and msg
+    log must be a logger or a logger name
+    None for lvl or msg are interpreted as any level or any message
+    """
+    logger = logging.getLogger(log) if isinstance(log, str) else log
+    filt = IgnoreMessagesFilter(lvl=lvl, msg=msg)
+    return log_filter(logger, filt)
+
+
+@contextmanager
+def log_filter(logger, filt):
+    logger.addFilter(filt)
+    try:
+        yield
+    finally:
+        logger.removeFilter(filt)
+
+
+
+class IgnoreMessagesFilter(logging.Filter):
+
+    def __init__(self, lvl=None, msg=None):
+        self.lvl = lvl
+        self.msg = msg
+
+
+    def filter(self, record):
+        lvl = self.lvl
+        msg = self.msg
+
+        is_lvl = (lvl is None or lvl == record.levelno)
+        is_msg = (msg is None or msg == record.msg)
+
+        return not (is_lvl and is_msg)
+
+
+