solve case of sample prefix

Author: h-mayorquin

neo/rawio/plexonrawio.py

@@ -298,8 +298,10 @@ def _parse_header(self):
             self._sig_sampling_rate = {}
 
             for stream_index, (channel_prefix, sr, length) in enumerate(buffer_stream_groups):
+                # The users of plexon can modify the channel names, is not common but in that case
+                # We assign the channel_prefix both as stream_name and stream_id
                 stream_name = channel_prefix_to_stream_name.get(channel_prefix, channel_prefix)
-                stream_id = channel_prefix_to_stream_id[channel_prefix]
+                stream_id = channel_prefix_to_stream_id.get(channel_prefix, channel_prefix)
 
                 mask = (sig_channels["sampling_rate"] == sr) & (all_sig_length == length)
                 sig_channels["stream_id"][mask] = stream_id

neo/test/iotest/test_plexonio.py

@@ -18,6 +18,7 @@ class TestPlexonIO(
         "plexon/File_plexon_1.plx",
         "plexon/File_plexon_2.plx",
         "plexon/File_plexon_3.plx",
+        "plexon/4chDemoPLX.plx"
     ]
 
 

neo/test/rawiotest/test_plexonrawio.py

@@ -15,6 +15,7 @@ class TestPlexonRawIO(
         "plexon/File_plexon_1.plx",
         "plexon/File_plexon_2.plx",
         "plexon/File_plexon_3.plx",
+        "plexon/4chDemoPLX.plx"
     ]