address pylint errors again

Author: jepler

examples/ov5640_jpeg_kaluga1_3.py

@@ -38,7 +38,7 @@
 display = adafruit_ili9341.ILI9341(display_bus, width=320, height=240, rotation=90)
 
 try:
-    with open("/boot_out.txt", "a") as f:
+    with open("/boot_out.txt", "ab") as f:
         pass
 except OSError as e:
     print(e)
@@ -48,7 +48,7 @@
         '\nboard while holding the "mode" button'
         "\n\nThis message is also shown after the board takes a picture and auto-restarts"
     )
-    raise SystemExit
+    raise SystemExit from e
 
 bus = busio.I2C(scl=board.CAMERA_SIOC, sda=board.CAMERA_SIOD)
 cam = adafruit_ov5640.OV5640(
@@ -78,7 +78,7 @@
     print("Wrote to CIRCUITPY/cam.jpg")
     print("Resetting so computer sees new content of CIRCUITPY")
     time.sleep(0.5)
-    microcontroller.reset()
+    microcontroller.reset()  # pylint: disable=no-member
 
 except OSError as e:
     print(e)

examples/ov5640_sdcard_kaluga_1_3.py

@@ -75,15 +75,15 @@ def exists(filename):
     try:
         os.stat(filename)
         return True
-    except OSError as e:
+    except OSError as _:
         return False
 
 
 _image_counter = 0
 
 
 def open_next_image():
-    global _image_counter
+    global _image_counter  # pylint: disable=global-statement
     while True:
         filename = f"/sd/img{_image_counter:04d}.jpg"
         _image_counter += 1
@@ -101,15 +101,16 @@ def open_next_image():
 while True:
     pixel[0] = 0x0000FF
     pixel.write()
-    a_voltage = a.value * a.reference_voltage / 65535
+    a_voltage = a.value * a.reference_voltage / 65535  # pylint: disable=no-member
     record_pressed = abs(a_voltage - V_RECORD) < 0.05
     if record_pressed:
         pixel[0] = 0xFF0000
         pixel.write()
         time.sleep(0.01)
         jpeg = cam.capture(b)
         print(
-            f"Captured {len(jpeg)} bytes of jpeg data (had allocated {cam.capture_buffer_size} bytes"
+            f"Captured {len(jpeg)} bytes of jpeg data"
+            f" (had allocated {cam.capture_buffer_size} bytes"
         )
         print(f"Resolution {cam.width}x{cam.height}")
         try:
@@ -123,5 +124,7 @@ def open_next_image():
         except OSError as e:
             print(e)
         while record_pressed:
-            a_voltage = a.value * a.reference_voltage / 65535
+            a_voltage = (
+                a.value * a.reference_voltage / 65535
+            )  # pylint: disable=no-member
             record_pressed = abs(a_voltage - V_RECORD) < 0.05