Generate a random string using random.choices()
This random.choices() function of a random module can help us achieve this task, and provides a one-liner alternative to a whole loop that might be required for this particular task. Works with Python > v3.6.
- String.ascii_uppercase – It returns the string with uppercase.
- String.digits – It returns the string with digits.
- String.punctuation – It returns the string with punctuations
- String.ascii_letters – It returns the string containing various cases.
- String.ascii_lowercase – It returns the string with lowercase.
Example 1: Random string generation with upper case letters
Python3
import stringimport random# initializing size of stringN = 7# using random.choices()# generating random stringsres = ''.join(random.choices(string.ascii_uppercase + string.digits, k=N))# print resultprint("The generated random string : " + str(res)) |
Output :
The generated random string : 0D5YE91
Example 2: Generate a random string of a given length in Lowercase
Python3
import stringimport random# initializing size of stringN = 7# using random.choices()# generating random stringsres = ''.join(random.choices(string.ascii_lowercase + string.digits, k=N))# print resultprint("The generated random string : " + str(res)) |
Output:
The generated random string : ipxktny
Example 3: Generate a random string of a given length in Uppercase and Lowercase
Python3
import stringimport random# initializing size of stringN = 7# using random.choices()# generating random stringsres = ''.join(random.choices(string.ascii_letters, k=N))# print resultprint("The generated random string : " + str(res)) |
Output:
The generated random string : ALpxvmI
Python | Generate random string of given length
The issue of generation of random numbers is quite common, but sometimes, we have applications that require us to better that and provide some functionality of generating a random string of digits and alphabets for applications such as passwords. Let’s discuss certain ways in which this can be performed in Python. Here, we will use Random string generation with upper case letters and digits
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