DOC: Use the same exception handling strategy in all examples

Author: mgeier

examples/play_file.py

@@ -20,6 +20,7 @@
     status = sd.get_status()
     if status:
         logging.warning(str(status))
-except BaseException as e:
-    # This avoids printing the traceback, especially if Ctrl-C is used.
-    raise SystemExit(str(e))
+except KeyboardInterrupt:
+    parser.exit('\nInterrupted by user')
+except Exception as e:
+    parser.exit(type(e).__name__ + ': ' + str(e))

examples/spectrogram.py

@@ -94,4 +94,4 @@ def callback(indata, frames, time, status):
 except KeyboardInterrupt:
     parser.exit('Interrupted by user')
 except Exception as e:
-    parser.exit(str(e))
+    parser.exit(type(e).__name__ + ': ' + str(e))

examples/wire.py

@@ -39,6 +39,7 @@ def callback(indata, outdata, frames, time, status):
 
     if callback_status:
         logging.warning(str(callback_status))
-except BaseException as e:
-    # This avoids printing the traceback, especially if Ctrl-C is used.
-    raise SystemExit(str(e))
+except KeyboardInterrupt:
+    parser.exit('\nInterrupted by user')
+except Exception as e:
+    parser.exit(type(e).__name__ + ': ' + str(e))