shithub: aubio

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python/demos/demo_bpm_extract.py: add exception type, avoid {} as default argument value

--- a/python/demos/demo_bpm_extract.py

+++ b/python/demos/demo_bpm_extract.py

@@ -3,16 +3,18 @@

 from aubio import source, tempo

 from numpy import median, diff

-def get_file_bpm(path, params = {}):

+def get_file_bpm(path, params = None):

     """ Calculate the beats per minute (bpm) of a given file.

         path: path to the file

         param: dictionary of parameters

     """

+    if params == None:

+        params = {}

     try:

         win_s = params['win_s']

         samplerate = params['samplerate']

         hop_s = params['hop_s']

-    except:

+    except KeyError:

         """

         # super fast

         samplerate, win_s, hop_s = 4000, 128, 64 

-- 

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