Password Generator in Python A step by step guide.
Are you tired of coming up with new passwords every time you sign up for a new account? Or maybe you’re concerned about the security of your current passwords and want to generate stronger ones? Well fear not! In this article, we will learn how to build a password generator in Python.
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Step 1: Understanding the Requirements
Before we dive into writing code let’s first understand what we need to accomplish. Our password generator should have the following features:
Generate a random password with a length specified by the user.
Include a mix of uppercase and lowercase letters, numbers, and special characters.
Avoid using ambiguous characters such as l, 1, I, O, and 0.
Step 2: Importing Necessary Libraries
Now we will Import Necessary Libraries to generate a random password we will use the random module in Python. We will also use string module to get a string of all possible characters that we want to include in our password.
import random
import string
Step 3: Getting Input from user
Next let us get desired length of password from the user. We can use the input() function to prompt user to enter length.
length = int(input("Enter the desired length of the password: "))
Step 4: Generating the Password
Now that we have desired length we can generate the password using the following code:
# Define all possible characters that can be used in the password
all_chars = string.ascii_letters + string.digits + string.punctuation
# Remove ambiguous characters from the set of possible characters
all_chars = ''.join([char for char in all_chars if char not in ['l', '1', 'I', 'O', '0']])
# Generate a password with the desired length
password = ''.join(random.choices(all_chars, k=length))
# Print the password
print("Your password is:", password)
Let us break down code step by step:
We define a string of all possible characters that can be used in the password. This includes uppercase and lowercase letters, digits, and punctuation.
We remove ambiguous characters from the set of possible characters using a list comprehension.
We generate a password with the desired length using the random.choices() function which randomly selects characters from the set of possible characters. We pass in the set of possible characters and the desired length of the password as arguments.
Finally we print the password to the console.
Step 5: Testing Password Generator
Let us run the code and test our password generator. Here is an example output:
Enter the desired length of the password: 10
Your password is: Vz|~4'c%2x
As you can see our password generator successfully generated a random password with a mix of uppercase and lowercase letters numbers and special characters.
Complete Code:
import random
import string
length = int(input("Enter the desired length of the password: "))
all_chars = string.ascii_letters + string.digits + string.punctuation
all_chars = ''.join([char for char in all_chars if char not in ['l', '1', 'I', 'O', '0']])
password = ''.join(random.choices(all_chars, k=length))
print("Your password is:", password)
Conclusion
In this article we learned how to build a password generator in Python that generates strong and secure passwords. We used the random and string modules in Python to generate a random password with a mix of uppercase and lowercase letters, numbers, and special characters. By avoiding ambiguous characters we ensured that the generated password is easy to read and remember. With this password generator you can now generate strong and secure.