Optimize code

pwn_search.py

@@ -100,7 +100,7 @@ def main():
     spi2 = SPI(2, baudrate=1000000,
                sck=Pin(18), mosi=Pin(23), miso=Pin(19))
 
-    pwn = PwnLookup(spi1, spi2)
+    PwnLookup(spi1, spi2)
 
     while True:
         sleep(.1)

touch_keyboard.py

@@ -29,7 +29,7 @@ class TouchKeyboard(object):
         (
             ('1', '2', '3', '4', '5', '6', '7', '8', '9', '0'),
             ('<', '>', '|', '\\', '/', '{', '}', '[', ']'),
-            ('\v', '=', '"', '\'', ';', ':', '`', '~', '\b', '\b'),
+            ('\f', '=', '"', '\'', ';', ':', '`', '~', '\b', '\b'),
             ('\a', ' ', '\r')
         )
     )
@@ -97,10 +97,7 @@ class TouchKeyboard(object):
                 self.kb_screen ^= 1  # Toggle caps
                 self.load_keyboard()
             elif key == '\f':
-                self.kb_screen = 3  # Symbols Set 2
+                self.kb_screen = self.kb_screen - 2 ^ 1 + 2  # Toggle symbols
-                self.load_keyboard()
-            elif key == '\v':
-                self.kb_screen = 2  # Symbols Set 1
                 self.load_keyboard()
             elif key == '\a':
                 self.kb_screen = 0  # Letters

xpt2046.py

@@ -99,7 +99,6 @@ class Touch(object):
         elif pin.value() and self.int_locked:
             sleep(.1)  # Debounce rising edge
             self.int_locked = False  # Unlock interrupt
-            return
 
     def normalize(self, x, y):
         """Normalize mean X,Y values to match LCD screen."""