View difference between Paste ID: 4J6G0w7D and aSty3DXY

 import threading
 from time import sleep
 from random import randint
 import string
 
 class Bouncer (threading.Thread):
     def __init__ (self):
         threading.Thread.__init__ (self)
         self.max = 59 #Max width of the screen
         self.sleeptime = 50 #MS delay. Sets wave speed
         self.sleeplock = threading.Lock ()
         self.chars = string.ascii_letters + string.digits + string.punctuation
 
     def rand_char (self):
         return self.chars [randint (0, len (self.chars) - 1)]
 
     def set_rate (self, nvalue):
         try:
-            try:
+            nvalue = int (nvalue)
-                nvalue = int (nvalue)
+        except ValueError as e:
-                self.sleeptime = nvalue
+            nvalue = 2000
-            except ValueError as e:
+            print ("Incorrect input type:", e)
-                self.sleeptime = 2000
+
-                print ("Incorrect input type:", e)
+            self.sleeptime = nvalue
-
+
     def wave (self):
         pad = 0
         dir = 'r'
         padchar = ' '
         while True:
             if dir == 'l':
                 pad += -1
             elif dir =='r':
                 pad += 1
 
             if randint (0, 1000) == 0:
                 padchar = '!'
 
             yield (padchar * pad)
 
             if pad > self.max:
                 dir = 'l'
             elif pad < 0:
                 dir = 'r'
             padchar = ' '
 
     def run (self):
         for p in self.wave ():
             print (p + self.rand_char ())
             with self.sleeplock:
-                sleep (self.sleeptime / 1000)
+                sleeptime = self.sleeptime
             sleep (sleeptime / 1000)
 
 wave = Bouncer ()
 wave.start ()
 
 while True:
     wave.set_rate (input (""))