Make the code slightly more readable

python/hexdump.py

@@ -1,5 +1,8 @@
 import sys
 
+def padlen(number):
+  return ((16 - (number % 16)) * 3) + 1 + int(number % 16 < 8)
+
 def hexdump(data):
   printed = []
 
@@ -8,7 +11,7 @@ def hexdump(data):
   for idx in range(len(data)):
     print(f"{data[idx]:02x}", end=" ")
 
-    if data[idx] < 129 and chr(data[idx]).isprintable():
+    if data[idx] < 128 and chr(data[idx]).isprintable():
       printed.append(chr(data[idx]))
     else:
       printed.append(".")
@@ -17,12 +20,12 @@ def hexdump(data):
       print(end=" ")
 
     if idx == len(data) - 1:
-      fmt = ""
+      padding = ""
 
       if (idx + 1) % 16 != 0:
-        fmt = " " * (((16 - ((idx + 1) % 16)) * 3) + 1 + int((idx + 1) % 16 < 8))
+        padding = " " * padlen(idx + 1)
 
-      print(f"{fmt}|{''.join(printed)}|")
+      print(f"{padding}|{''.join(printed)}|")
       print(f"{idx + 1:08x}")
     elif (idx + 1) % 16 == 0:
       print(f"|{''.join(printed)}|")