A username is a unique name that is mainly used on websites and apps. A username is used to identify a person. For example, if your name is Akshay and you want to create your account on any social media app, here we need a username such that another person can find us. It is not possible to search by Akshay because there may be many users with the name Akshay.
In this article, we will learn to generate username suggestions. We will use some constraints to generate a username.
Approach:
We will first take the name of the user, remove space from it and convert it to lowercase. Then we will take some part of the name of the user and then add some digits and special symbols to generate our username.
Steps to generate username:
- Import Modules and take the name of the user.
Python3
import randomname_of_user = "Akshay Singh" |
- Define Constraints like the minimum length of the username, the minimum number of special characters, the minimum number of digits, etc.
Python3
# Constraints minimum_capital_letter = 1minimum_specia_char = 1minimum_digits = 2min_len_of_username = 8special_chars = ['@','#','$','&'] |
- Define a variable to store the username, remove space from the name of the user and convert it to lowercase.
Python3
# variable to store generated usernameusername = ""# remove space from name of username_of_user = "".join(name_of_user.split())# convert whole name in lowercase name_of_user = name_of_user.lower() |
- Define the minimum number of characters that we need to take from the name of the user and then take a random number of characters from the name of the user using random.randint(start,end) function.
random.randint(start,end) function returns a random integer between start and end. start and end are also included in this range. Example: random.randint(3,8) will return a number between 3 and 8, including 3 & 8.
Python3
# calculate minimum characters that we need to take from name of user minimum_char_from_name = min_len_of_username-minimum_digits-minimum_specia_char# take required part from name temp = 0for i in range(random.randint(minimum_char_from_name,len(name_of_user))): if temp < minimum_capital_letter: username += name_of_user[i].upper() temp += 1 else: username += name_of_user[i] |
- The last step is to take random digits and special characters in a list and then shuffle them using random.shuffle() and then insert them to last in username.
Python3
# temp_list to store digits and special_chars so that they can be shuffled before adding to username temp_list = []# add required digits for i in range(minimum_digits): temp_list.append(str(random.randint(0,9)))# append special characters for i in range(minimum_specia_char): temp_list.append(special_chars[random.randint(0,len(special_chars)-1)])# shuffle list random.shuffle(temp_list)username += "".join(temp_list)print(username) |
Code:
Example 1:
To generate 5 usernames of minimum length 8, the minimum number of digits 2, the minimum number of special characters 2, and minimum capital letters 2
Python3
import randomdef generate_username(name_of_user): # Constraints minimum_capital_letter = 2 minimum_specia_char = 2 minimum_digits = 2 min_len_of_username = 8 special_chars = ['@','#','$','&'] # variable to store generated username username = "" # remove space from name of user name_of_user = "".join(name_of_user.split()) # convert whole name in lowercase name_of_user = name_of_user.lower() # calculate minimum characters that we need to take from name of user minimum_char_from_name = min_len_of_username-minimum_digits-minimum_specia_char # take required part from name temp = 0 for i in range(random.randint(minimum_char_from_name,len(name_of_user))): if temp < minimum_capital_letter: username += name_of_user[i].upper() temp += 1 else: username += name_of_user[i] # temp_list to store digits and special_chars so that they can be shuffled before adding to username temp_list = [] # add required digits for i in range(minimum_digits): temp_list.append(str(random.randint(0,9))) # append special characters for i in range(minimum_specia_char): temp_list.append(special_chars[random.randint(0,len(special_chars)-1)]) # shuffle list random.shuffle(temp_list) username += "".join(temp_list) print(username)if __name__ == "__main__": name_of_user = "Akshay Singh" for i in range(5): generate_username(name_of_user) |
Output:
Example 1:
To generate 8 usernames of minimum length 6, the minimum number of digits 1, the minimum number of special characters 2, and minimum capital letters 1
Python3
import randomdef generate_username(name_of_user): # Constraints minimum_capital_letter = 1 minimum_specia_char = 2 minimum_digits = 1 min_len_of_username = 6 special_chars = ['@','#','$','&'] # variable to store generated username username = "" # remove space from name of user name_of_user = "".join(name_of_user.split()) # convert whole name in lowercase name_of_user = name_of_user.lower() # calculate minimum characters that we need to take from name of user minimum_char_from_name = min_len_of_username-minimum_digits-minimum_specia_char # take required part from name temp = 0 for i in range(random.randint(minimum_char_from_name,len(name_of_user))): if temp < minimum_capital_letter: username += name_of_user[i].upper() temp += 1 else: username += name_of_user[i] # temp_list to store digits and special_chars so that they can be shuffled before adding to username temp_list = [] # add required digits for i in range(minimum_digits): temp_list.append(str(random.randint(0,9))) # append special characters for i in range(minimum_specia_char): temp_list.append(special_chars[random.randint(0,len(special_chars)-1)]) # shuffle list random.shuffle(temp_list) username += "".join(temp_list) print(username)if __name__ == "__main__": name_of_user = "Akshay Singh" for i in range(8): generate_username(name_of_user) |
Output:
