Add warning on compression modules import

Author: xzkostyan

clickhouse_driver/compression/__init__.py

@@ -1,15 +1,19 @@
 import importlib
+import logging
 
 from .. import errors
 from ..protocol import CompressionMethodByte
 
+logger = logging.getLogger(__name__)
+
 
 def get_compressor_cls(alg):
     try:
         module = importlib.import_module('.' + alg, __name__)
         return module.Compressor
 
     except ImportError:
+        logger.warning('Unable to import module %s', alg, exc_info=True)
         raise errors.UnknownCompressionMethod(
             "Unknown compression method: '{}'".format(alg)
         )