using local logger instead of root logger

Author: Jinserk Baik

pysndfx/dsp.py

@@ -7,7 +7,7 @@
 
 import numpy as np
 
-from .sndfiles import FilePathInput, FileBufferInput, NumpyArrayInput, FilePathOutput, NumpyArrayOutput, FileBufferOutput
+from .sndfiles import logger, FilePathInput, FileBufferInput, NumpyArrayInput, FilePathOutput, NumpyArrayOutput, FileBufferOutput
 
 
 def mutually_exclusive(*args):
@@ -123,7 +123,7 @@ def sinc(self,
         if left_n is not None:
             self.command.append("-n")
             self.command.append(str(left_n))
-        
+
         if high_pass_frequency is not None and low_pass_frequency is None:
             self.command.append(str(high_pass_frequency))
         elif high_pass_frequency is not None and low_pass_frequency is not None:
@@ -408,7 +408,7 @@ def __call__(self,
             ] + list(map(str, self.command))),
             posix=False)
 
-        logging.debug("Running command : %s" % cmd)
+        logger.debug("Running command : %s" % cmd)
         if isinstance(stdin, np.ndarray):
             stdout, stderr = Popen(cmd, stdin=PIPE, stdout=PIPE, stderr=PIPE).communicate(stdin.tobytes(order="F"))
         else:

pysndfx/sndfiles.py

@@ -11,6 +11,7 @@
 
 PIPE_CHAR = "-"
 
+logger = logging.getLogger("pysndfx")
 
 class SoxInput(object):
     pipe = "-"
@@ -24,7 +25,7 @@ class FilePathInput(SoxInput):
     def __init__(self, filepath):
         super(FilePathInput, self).__init__()
         info_cmd = 'sox --i -c ' + filepath
-        logging.debug("Running info command : %s" % info_cmd)
+        logger.debug("Running info command : %s" % info_cmd)
         stdout, stderr = Popen(shlex.split(info_cmd, posix=False),
                                stdout=PIPE,
                                stderr=PIPE).communicate()
@@ -100,4 +101,4 @@ def __init__(self, encoding, samplerate, channels):
                                     "-r " + str(samplerate),
                                     "-c " + str(channels),
                                     PIPE_CHAR,
-                                    ])
+                                    ])

tests/test_dsp.py

@@ -4,7 +4,8 @@
 import logging
 from pysndfx.dsp import AudioEffectsChain
 
-logging.getLogger().setLevel(logging.DEBUG)
+logger = logging.getLogger("pysndfx")
+logger.setLevel(logging.DEBUG)
 
 apply_audio_effects = AudioEffectsChain()\
     .highshelf()\