diff --git a/bit_manipulation/binary_and_operator.py b/bit_manipulation/binary_and_operator.py
index e5dffe3e3..f1b910f8c 100644
--- a/bit_manipulation/binary_and_operator.py
+++ b/bit_manipulation/binary_and_operator.py
@@ -1,5 +1,6 @@
 # https://www.tutorialspoint.com/python3/bitwise_operators_example.htm
 
+
 def binary_and(a: int, b: int):
     """
     Take in 2 integers, convert them to binary,
diff --git a/bit_manipulation/binary_xor_operator.py b/bit_manipulation/binary_xor_operator.py
index 32a8f2721..0edf2ba66 100644
--- a/bit_manipulation/binary_xor_operator.py
+++ b/bit_manipulation/binary_xor_operator.py
@@ -1,5 +1,6 @@
 # https://www.tutorialspoint.com/python3/bitwise_operators_example.htm
 
+
 def binary_xor(a: int, b: int):
     """
     Take in 2 integers, convert them to binary,
diff --git a/strings/reverse_words.py b/strings/reverse_words.py
index 8ab060fe1..504c1c208 100644
--- a/strings/reverse_words.py
+++ b/strings/reverse_words.py
@@ -1,18 +1,15 @@
-# Created by sarathkaul on 18/11/19
-# Edited by farnswj1 on 4/4/20
-
-
 def reverse_words(input_str: str) -> str:
     """
     Reverses words in a given string
-    >>> sentence = "I love Python"
-    >>> reverse_words(sentence) == " ".join(sentence.split()[::-1])
-    True
-    >>> reverse_words(sentence)
+    >>> reverse_words("I love Python")
     'Python love I'
+    >>> reverse_words("I     Love          Python")
+    'Python Love I'
     """
-    return " ".join(reversed(input_str.split(" ")))
+    return " ".join(input_str.split()[::-1])
 
 
 if __name__ == "__main__":
-    print(reverse_words("INPUT STRING"))
+    import doctest
+
+    doctest.testmod()