Create Password_Strong_weak.py

Program's_Contributed_By_Contributors/Python_Programs/Password_Strong_weak.py

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+import re
+
+
+# Function to categorize password
+def password(v):
+
+    # the password should not be a
+    # newline or space
+    if v == "\n" or v == " ":
+        return "Password cannot be a newline or space!"
+
+    # the password length should be in
+    # between 9 and 20
+    if 9 <= len(v) <= 20:
+
+        # checks for occurrence of a character 
+        # three or more times in a row
+        if re.search(r'(.)\1\1', v):
+            return "Weak Password: Same character repeats three or more times in a row"
+
+        # checks for occurrence of same string 
+        # pattern( minimum of two character length)
+        # repeating
+        if re.search(r'(..)(.*?)\1', v):
+            return "Weak password: Same string pattern repetition"
+
+        else:
+            return "Strong Password!"
+
+    else:
+        return "Password length must be 9-20 characters!"
+
+# Main method
+def main():
+
+    # Driver code
+    print(password("Qggf!@ghf3"))
+    print(password("Gggksforgeeks"))
+    print(password("aaabnil1gu"))
+    print(password("Aasd!feasn"))
+    print(password("772*hd897"))
+    print(password(" "))
+
+
+# Driver Code
+if __name__ == '__main__':
+    main()