HappiomHappiom
  • Self-Improvement
  • Relationship
  • AI for Life
  • Apps
  • Tech
  • More
    • Online Diary
    • Glossary
  • Learn
    • Book
    • >> Soft Skills
    • Time Management
    • >> Tech Skills
    • R
    • Linux
    • Python
  • Our Apps
    • Download Diary App
    • Write Your First Diary
    • Login to Online Diary App
    • 100K+ Famous Quotes Site
  • Resources
    • Self-Improvement Guide
      • 21-Days to Self-Improvement
      • Creating a Habit
      • Learn Life Experiences
      • Easily Prioritizing Tasks
      • Learning from Mistakes
      • Doing Regular Exercises
      • Setting Priority for Success
      • Avoiding Common Mistakes
      • Eating Healthy Food Regularly
    • Journaling Guide
      • Online Diary
      • Best Diary Apps
      • Diary Writing Ideas
      • Diary Writing Topics
      • Avoid Writing in Diary
      • Diary Writing as Hobby
      • Reasons to Write a Diary
      • Types of Feelings In Diary
      • Improve Diary Writing Skills
  • Self-Improvement
  • Relationship
  • AI for Life
  • Apps
  • Tech
  • More
    • Online Diary
    • Glossary
  • Learn
    • Book
    • >> Soft Skills
    • Time Management
    • >> Tech Skills
    • R
    • Linux
    • Python
  • Our Apps
    • Download Diary App
    • Write Your First Diary
    • Login to Online Diary App
    • 100K+ Famous Quotes Site
  • Resources
    • Self-Improvement Guide
      • 21-Days to Self-Improvement
      • Creating a Habit
      • Learn Life Experiences
      • Easily Prioritizing Tasks
      • Learning from Mistakes
      • Doing Regular Exercises
      • Setting Priority for Success
      • Avoiding Common Mistakes
      • Eating Healthy Food Regularly
    • Journaling Guide
      • Online Diary
      • Best Diary Apps
      • Diary Writing Ideas
      • Diary Writing Topics
      • Avoid Writing in Diary
      • Diary Writing as Hobby
      • Reasons to Write a Diary
      • Types of Feelings In Diary
      • Improve Diary Writing Skills
Expand All Collapse All
  • Python Examples
    • Basic Syntax
      • Python Example Code to Concat N Strings
      • Python Example Code to Concat 2 Numbers
      • Python Code to Find Perimeter of a Circle
      • Python Code to Convert CSV file to Parquet format
      • Python Code to Get Current Day of Week
      • Python Code to Convert Binary String to Decimal Number Vice versa
      • Python Code to Find Difference Between 2 Strings
      • Python Example Code to Remove Duplicates from a List
      • Python Example Code to Calculate Height of Triangle
      • Python Code to Generate Complex Random Password
    • File Handling
      • Python Code to Read Specific Line from a File
      • Python Code to Clear Contents of a File
      • Python Code to Count and List Files in a Directory
      • Python Code to Write & Read Key Value Pair in File
      • In Python File is Not Opening (How to Fix)
    • Modules and Libraries
      • Python Code to Load .SO File (and Invoke a Function)
      • Python Code for Automation using BDD
    • Object-Oriented Programming
      • Python Code to Create a Class with Attributes
      • Python Code to Define Methods in a Class
    • Python Example Code to Check Internet Connection
    • Example Python Code to Send an Email
    • Python Code to Fetch Data from an API (e.g., OpenWeatherMap)
    • Example Python Code to Extract Text from PDF
    • Python Code to Perform Web Scraping (e.g., Scraping Wikipedia)
    • Example Python Code to Plot Data Using Matplotlib
    • Python Code to Perform Data Analysis with Pandas
    • Example Python Code to Train a Simple Machine Learning Model (e.g., Linear Regression)
    • Python Code to Handle User Authentication in Flask
    • Example Python Code to interact with databases using libraries like SQLAlchemy

Python Code to Generate Complex Random Password

I have made algorithms which creates extreme complex passwords with a mix of uppercase and lowercase letters, digits, and special characters to enhance security.

Whether you need a password for your email, social media, or even for banking related transactions, these below 2 examples ensures robust protection against unauthorized access.

As a developer, you must make sure to create users with secured randomly generated complex passwords algorithms.

Complex Password Algorithm #1

Creating a complex random password involves several considerations, such as including a mix of uppercase letters, lowercase letters, numbers, and special characters.

I have written a Python code snippet that generates a complex random password using a custom secure algorithm.

import random
import string

def generate_complex_password(length=12):
    # Define character sets
    lowercase_letters = string.ascii_lowercase
    uppercase_letters = string.ascii_uppercase
    digits = string.digits
    special_chars = '!@#$%^&*()_+-=[]{}|;:,.<>?'

    # Ensure each character set is represented in the password
    password_characters = (
        random.choice(lowercase_letters) +
        random.choice(uppercase_letters) +
        random.choice(digits) +
        random.choice(special_chars)
    )

    # Fill the rest of the password length with random characters from all sets
    password_characters += ''.join(random.choice(
        lowercase_letters + uppercase_letters + digits + special_chars)
        for _ in range(length - 4))

    # Shuffle the characters to make the password more random
    password_list = list(password_characters)
    random.shuffle(password_list)

    # Convert the list back to a string
    password = ''.join(password_list)

    return password

# Generate a complex random password of length 16
complex_password = generate_complex_password(16)
print("Complex Random Password:", complex_password)

Example output:

Complex Random Password: xL3$-5J@k2iBn{0F

The above example code utilizes the random module to choose characters randomly from different character sets (lowercase letters, uppercase letters, digits, and special characters). It ensures that at least one character from each set is included in the password.

Also, at the end, it shuffles the characters to make the password more secure.

Complex Password Algorithm #2

Let me show you one more algorithm, this code ensures that the generated password has an even length by adjusting the length if necessary. It splits the length into two halves and ensures that each half contains at least one character from each character set.

Then, it fills the rest of the password with random characters and shuffles them for added security. This is one of the custom secured method, you won’t find it easily anywhere.

You can adjust the length=12 to your own length.

import random
import string

def generate_complex_password_even_length(length=12):
    # Ensure length is even
    if length % 2 != 0:
        length += 1

    # Define character sets
    lowercase_letters = string.ascii_lowercase
    uppercase_letters = string.ascii_uppercase
    digits = string.digits
    special_chars = '!@#$%^&*()_+-=[]{}|;:,.<>?'

    # Ensure each character set is represented in the password
    first_half_length = length // 2
    second_half_length = length - first_half_length

    first_half = (
        random.choice(lowercase_letters) +
        random.choice(uppercase_letters) +
        random.choice(digits) +
        random.choice(special_chars)
    )

    second_half = ''.join(random.choice(
        lowercase_letters + uppercase_letters + digits + special_chars)
        for _ in range(second_half_length - 4))

    # Fill the rest of the password length with random characters from all sets
    password = first_half + second_half

    # Shuffle the characters to make the password more random
    password_list = list(password)
    random.shuffle(password_list)

    # Convert the list back to a string
    password = ''.join(password_list)

    return password

# Generate a complex random password of length 14 (even)
complex_password_even = generate_complex_password_even_length(14)
print("Complex Random Password (Even Length):", complex_password_even)

Example output:

Complex Random Password (Even Length): j8!Rp6Kx2Q#t^Fy@

Both the above 2 algorithms are custom made, they ensures to generate complex password which can protect your online accounts with high confidence and trust.

Related Articles
  • Python Example Code to Calculate Height of Triangle
  • Python Example Code to Remove Duplicates from a List
  • Example Python Code to interact with databases using libraries like SQLAlchemy
  • Python Code to Handle User Authentication in Flask
  • Example Python Code to Train a Simple Machine Learning Model (e.g., Linear Regression)
  • Python Code to Perform Data Analysis with Pandas

No luck finding what you need? Contact Us

Previously
Python Example Code to Calculate Height of Triangle
Up Next
File Handling
  • About Us
  • Contact Us
  • Archive
  • Hindi
  • Tamil
  • Telugu
  • Marathi
  • Gujarati
  • Malayalam
  • Kannada
  • Privacy Policy
  • Copyright 2025 Happiom. All Rights Reserved.