Password Generator

Programs/helloWorld.py

@@ -1,3 +1 @@
-# This program prints Hello, world!
-
-print('Hello, world!')
+print ("Hello World")

passwordgenerator.py

@@ -0,0 +1,73 @@
+# import modules
+import string
+import random
+
+
+# store all characters in lists 
+s1 = list(string.ascii_lowercase)
+s2 = list(string.ascii_uppercase)
+s3 = list(string.digits)
+s4 = list(string.punctuation)
+
+
+# Ask user about the number of characters
+user_input = input("How many characters do you want in your password? ")
+
+
+# check this input is it number? is it more than 8?
+while True:
+
+	try:
+
+		characters_number = int(user_input)
+
+		if characters_number < 8:
+
+			print("Your number should be at least 8.")
+
+			user_input = input("Please, Enter your number again: ")
+
+		else:
+
+			break
+
+	except:
+
+		print("Please, Enter numbers only.")
+
+		user_input = input("How many characters do you want in your password? ")
+
+
+# shuffle all lists
+random.shuffle(s1)
+random.shuffle(s2)
+random.shuffle(s3)
+random.shuffle(s4)
+
+
+# calculate 30% & 20% of number of characters
+part1 = round(characters_number * (30/100))
+part2 = round(characters_number * (20/100))
+
+
+# generation of the password (60% letters and 40% digits & punctuations)
+result = []
+
+for x in range(part1):
+
+	result.append(s1[x])
+	result.append(s2[x])
+
+for x in range(part2):
+
+	result.append(s3[x])
+	result.append(s4[x])
+
+
+# shuffle result
+random.shuffle(result)
+
+
+# join result
+password = "".join(result)
+print("Strong Password: ", password)