Remove error-swallowing try/except blocks from examples; let exceptions propagate naturally. HLC example uses try/finally to ensure landing on failure.

Author: gemenerik

examples/app_channel.py

@@ -120,8 +120,6 @@ async def main() -> None:
         print("\n" + "-" * 60)
         print("All tests passed! ✓")
 
-    except ValueError as e:
-        print(f"\nError: {e}")
     except KeyboardInterrupt:
         print("\n" + "-" * 60)
         print("Interrupted by user")

examples/high_level_commander.py

@@ -45,45 +45,31 @@ async def main() -> None:
 
     hlc = cf.high_level_commander()
 
-    print("Taking off...")
     try:
+        print("Taking off...")
         await hlc.take_off(0.5, None, 2.0, None)
         await asyncio.sleep(2.0)
-    except Exception as e:
-        print(f"Take-off failed: {e}")
 
-    print("Going to first position...")
-    try:
+        print("Going to first position...")
         await hlc.go_to(0.0, 0.5, 0.5, 0.0, 2.0, False, False, None)
         await asyncio.sleep(2.0)
-    except Exception as e:
-        print(f"Go-to failed: {e}")
 
-    print("Going to second position...")
-    try:
+        print("Going to second position...")
         await hlc.go_to(-0.25, 0.0, 0.5, 0.0, 2.0, False, False, None)
         await asyncio.sleep(2.0)
-    except Exception as e:
-        print(f"Go-to failed: {e}")
 
-    print("Moving in a spiral...")
-    try:
+        print("Moving in a spiral...")
         await hlc.spiral(-math.pi * 2.0, 0.5, 0.5, 0.0, 2.0, True, True, None)
         await asyncio.sleep(2.0)
-    except Exception as e:
-        print(f"Spiral failed: {e}")
-
-    print("Landing...")
-    try:
+    finally:
+        print("Landing...")
         await hlc.land(0.0, None, 2.0, None)
         await asyncio.sleep(2.0)
-    except Exception as e:
-        print(f"Landing failed: {e}")
 
-    await hlc.stop(None)
-    print("Done")
+        await hlc.stop(None)
+        print("Done")
 
-    await cf.disconnect()
+        await cf.disconnect()
 
 
 if __name__ == "__main__":

examples/lighthouse_persist.py

@@ -121,9 +121,6 @@ async def main() -> None:
     except KeyboardInterrupt:
         print("\n\nInterrupted by user")
 
-    except Exception as e:
-        print(f"\n✗ Error: {e}")
-
     finally:
         print("\nDisconnecting...")
         await cf.disconnect()

examples/log.py

@@ -80,8 +80,6 @@ async def main() -> None:
             )
     except KeyboardInterrupt:
         print("\nStopping...")
-    except Exception as e:
-        print(f"\nError: {e}")
     finally:
         await log_stream.stop()
         await cf.disconnect()

examples/toc_cache.py

@@ -101,22 +101,17 @@ async def main() -> int:
 
         start_time = time.time()
 
-        try:
-            cf = await Crazyflie.connect_from_uri(context, args.uri, toc_cache=cache)
-            connect_time = time.time() - start_time
-            connection_times.append(connect_time)
+        cf = await Crazyflie.connect_from_uri(context, args.uri, toc_cache=cache)
+        connect_time = time.time() - start_time
+        connection_times.append(connect_time)
 
-            print(f"{connect_time:.3f}s")
+        print(f"{connect_time:.3f}s")
 
-            await cf.disconnect()
+        await cf.disconnect()
 
-            # Brief pause between connections
-            if attempt < args.connections:
-                await asyncio.sleep(0.5)
-
-        except Exception as e:
-            print(f"FAILED - {e}")
-            return 1
+        # Brief pause between connections
+        if attempt < args.connections:
+            await asyncio.sleep(0.5)
 
     # Print summary
     print(f"\nConnection times: {', '.join(f'{t:.3f}s' for t in connection_times)}")