ruff fixes

src/pylsl/examples/HandleMetadata.py

@@ -3,6 +3,7 @@
 
 import time
 
+import numpy as np
 from pylsl import StreamInfo, StreamInlet, StreamOutlet, resolve_byprop
 
 
@@ -13,7 +14,8 @@ def main():
     # now attach some meta-data (in accordance with XDF format,
     # see also https://github.com/sccn/xdf/wiki/Meta-Data)
     chns = info.desc().append_child("channels")
-    for label in ["C3", "C4", "Cz", "FPz", "POz", "CPz", "O1", "O2"]:
+    ch_labels = ["C3", "C4", "Cz", "FPz", "POz", "CPz", "O1", "O2"]
+    for label in ch_labels:
         ch = chns.append_child("channel")
         ch.append_child_value("label", label)
         ch.append_child_value("unit", "microvolts")
@@ -27,7 +29,9 @@ def main():
     # create outlet for the stream
     outlet = StreamOutlet(info)
 
-    # (...normally here one might start sending data into the outlet...)
+    # Send a sample into the outlet...
+    dummy_sample = np.arange(len(ch_labels), dtype=np.float32)
+    outlet.push_sample(dummy_sample)
 
     # === the following could run on another computer ===
 

src/pylsl/examples/PerformanceTest.py

@@ -16,12 +16,10 @@
 )
 
 try:
-    from pyfftw.interfaces.numpy_fft import (  # Performs much better than numpy's fftpack
-        irfft,
-        rfft,
-    )
+    from pyfftw.interfaces.numpy_fft import irfft
+    # Performs much better than numpy's fftpack
 except ImportError:
-    from numpy.fft import irfft, rfft
+    from numpy.fft import irfft
 try:
     import sys
 
@@ -339,7 +337,7 @@ def __init__(self):
         self.inlet = StreamInlet(streams[0], processing_flags=proc_flags)
         # The following is an example of how to read stream info
         stream_info = self.inlet.info()
-        stream_Fs = stream_info.nominal_srate()
+        # stream_Fs = stream_info.nominal_srate()
         stream_xml = stream_info.desc()
         chans_xml = stream_xml.child("channels")
         chan_xml_list = []

src/pylsl/info.py

@@ -89,8 +89,8 @@ def __del__(self):
         # noinspection PyBroadException
         try:
             lib.lsl_destroy_streaminfo(self.obj)
-        except:
-            pass
+        except Exception as e:
+            print(f"StreamInfo deletion triggered error: {e}")
 
     # === Core Information (assigned at construction) ===
 

src/pylsl/outlet.py

@@ -60,8 +60,8 @@ def __del__(self):
         # noinspection PyBroadException
         try:
             lib.lsl_destroy_outlet(self.obj)
-        except:
-            pass
+        except Exception as e:
+            print(f"StreamOutlet deletion triggered error: {e}")
 
     def push_sample(self, x, timestamp=0.0, pushthrough=True):
         """Push a sample into the outlet.