fix whitespace and styling

amodem/calib.py

@@ -23,6 +23,7 @@ def send():
     except KeyboardInterrupt:
         p.kill()
 
+
 def recv():
     p = wave.record('-', stdout=wave.sp.PIPE)
     try:
@@ -37,13 +38,15 @@ def recv():
                 continue
             x = x - np.mean(x)
 
-            c = np.abs(np.dot(x, sig)) / (np.sqrt(0.5 * len(x)) * sigproc.norm(x))
+            normalization_factor = np.sqrt(0.5 * len(x)) * sigproc.norm(x)
+            coherence = np.abs(np.dot(x, sig)) / normalization_factor
             z = np.dot(x, sig.conj()) / (0.5 * len(x))
-            amp = np.abs(z)
+            amplitude = np.abs(z)
             phase = np.angle(z)
             peak = np.max(np.abs(x))
-            print('coherence={:.3f} amp={:.3f} phase={:.1f} peak={:.3f}'.format(
-                  c, amp, phase * 180 / np.pi, peak))
+
+            fmt = 'coherence={:.3f} amplitude={:.3f} phase={:+.1f} peak={:.3f}'
+            print(fmt.format(coherence, amplitude, phase * 180 / np.pi, peak))
     except KeyboardInterrupt:
         p.kill()
 

tests/test_full.py

@@ -14,6 +14,7 @@ import logging
 logging.basicConfig(level=logging.DEBUG,
                     format='%(asctime)s %(levelname)-12s %(message)s')
 
+
 class Args(object):
     def __init__(self, **kwargs):
         self.__dict__.update(kwargs)
@@ -37,19 +38,24 @@ def run(size, chan):
 
     assert rx_data == tx_data
 
+
 def test_small():
     run(1024, lambda x: x)
 
+
 def test_large():
     run(54321, lambda x: x)
 
+
 def test_attenuation():
     run(5120, lambda x: x * 0.1)
 
+
 def test_low_noise():
     r = np.random.RandomState(seed=0)
     run(5120, lambda x: x + r.normal(size=len(x), scale=0.0001))
 
+
 def test_medium_noise():
     r = np.random.RandomState(seed=0)
     run(5120, lambda x: x + r.normal(size=len(x), scale=0.001))