Added password_generatory.py

password_generator.py

@@ -0,0 +1,103 @@
+import random
+
+class PasswordGenerator():
+    """
+    Password Generator class to create random passwords based on the users
+    preferences for uppercase, numbers, and symbols. Ambiguous characters
+    ('l' [Lower case L], '1' [one], I [capital i], O [capital o], 0 [zero]) are
+    omitted by default.
+    """
+
+    def __init__(self, length, uchars, nums, symbols):
+        """
+        Initializes a PasswordGenerator object. Includes private data members
+        for the possible upper and lowercase letters, numbers, symbols, and the
+        set of characters available for password creation based on user input.
+        Takes the users desired password length, and whether to use uppercase
+        letters, numbers, and symbols as parameters.
+        """
+
+        self._lchars = ('q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', 'a',
+                        's', 'd', 'f', 'g', 'h', 'j', 'k', 'z', 'x', 'c',
+                        'v', 'b', 'n', 'm')
+        self._uchars = ('Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'P', 'A',
+                        'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', 'Z', 'X', 'C',
+                        'V', 'B', 'N', 'M')
+        self._nums = ('2','3','4','5','6','7','8','9')
+        self._symbols = ('!', '@', '#', '$', '%', '^', '&', '*')
+        self._available_chars = self._lchars
+        self._length = length
+        self._use_uchars = uchars
+        self._use_nums = nums
+        self._use_symbols = symbols
+
+
+    def use_upper(self):
+        """
+        Checks if the user wants uppercase letters in the password. If yes,
+        adds the uppercase letters to possible characters for the password.
+        """
+        if self._use_uchars.lower() == 'n':
+            return
+        else:
+            self._available_chars += self._uchars
+
+    def use_nums(self):
+        """
+        Checks if the user wants numbers in the password. If yes, adds
+        the numbers to the possible characters for the password.
+        """
+        if self._use_nums.lower() == 'n':
+            return
+        else:
+            self._available_chars += self._nums
+
+    def use_symbols(self):
+        """
+        Checks if the user wants symbols in the password. If yes, adds the
+        symbols to the possible characters for the password."
+        """
+        if self._use_symbols.lower() == 'n':
+            return
+        else:
+            self._available_chars += self._symbols
+
+    def create_password(self):
+        """
+        Uses the use_upper, use_nums, and use_symbols methods to determine the
+        possible characters that should be considered and generates the
+        password.
+        """
+        password = ''
+        self.use_upper()
+        self.use_nums()
+        self.use_symbols()
+        while len(password) < self._length:
+            password += random.choice(self._available_chars)
+        print('\nYour new password is: ', password)
+        print('\n')
+
+def main():
+    """
+    Main function to prompt user for password length, and whether to include
+    uppercase letters, numbers, and symbols in the password. Uses the
+    PasswordGenerator class and it's create_password member function to
+    generate and print the new password to the console.
+    """
+
+    print('\n')
+    print('======================')
+    print('| Password Generator |')
+    print('======================')
+    print('Note that ambiguous characters such as 0 (zero) and O (capital o) \
+are automatically excluded!\n')
+
+    length = int(input('How many characters for your password? '))
+    use_uchars = input('Use uppercase? [Y/n] ')
+    use_nums = input('Use numbers? [Y/n] ')
+    use_symbols = input('Use symbols? [Y/n] ')
+
+    PasswordGenerator(length, use_uchars, use_nums, use_symbols).create_password()
+
+if __name__ == '__main__':
+    main()