X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=decoders%2Fi2s%2Fpd.py;fp=decoders%2Fi2s%2Fpd.py;h=8b45a752cbae2c750581a511cff382002734934e;hp=dc42a4e5d1900a84d892554ed655006fd8b56781;hb=35b380b1156434b73d4a976c68f5ab3604c8510a;hpb=22fc7ace72f3165c98208a8f544156e04a709639

diff --git a/decoders/i2s/pd.py b/decoders/i2s/pd.py
index dc42a4e..8b45a75 100644
--- a/decoders/i2s/pd.py
+++ b/decoders/i2s/pd.py
@@ -93,8 +93,8 @@ class Decoder(srd.Decoder):
 
         # Calculate the sample rate.
         samplerate = '?'
-        if self.start_sample != None and \
-            self.first_sample != None and \
+        if self.start_sample is not None and \
+            self.first_sample is not None and \
             self.start_sample > self.first_sample:
             samplerate = '%d' % (self.samplesreceived *
                 self.samplerate / (self.start_sample -
@@ -151,7 +151,7 @@ class Decoder(srd.Decoder):
                 continue
 
             # Only submit the sample, if we received the beginning of it.
-            if self.start_sample != None:
+            if self.start_sample is not None:
 
                 if not self.wrote_wav_header:
                     self.put(0, 0, self.out_bin, (0, self.wav_header()))
@@ -182,8 +182,7 @@ class Decoder(srd.Decoder):
             self.start_sample = self.samplenum
 
             # Save the first sample position.
-            if self.first_sample == None:
+            if self.first_sample is None:
                 self.first_sample = self.samplenum
 
             self.oldws = ws
-