# Generating random Id’s in Python

• Difficulty Level : Basic
• Last Updated : 28 Sep, 2021

In python there are different ways to generate id’s. Let’s see how different types of Id’s can be generated using python without using inbuilt Python libraries.

#### 1. Generating Random Integer as Ids’

Code #1 : Print 10 random values of numbers between 1 and 100.

## Python3

 `# Python3 code to demonstrate the``# random generation of Integer id's` `import` `random` `# determines how many values``# will be printed``for` `x ``in` `range``(``10``):``    ` `    ``# print 10 random values``    ``# between 1 and 100``    ``print` `(random.randint(``1``, ``101``))`

Output :

```76
72
7
78
77
19
24
23
77
96```

Code #2 : Print random numbers between 1 and 100 which are multiple of 5.

## Python3

 `# Python3 code to demonstrate``# the random generation of id's``# which are multiple of 5` `import` `random` `# determines how many``# values will be printed``for` `x ``in` `range``(``10``):``        ` `    ``# print 10 random values between``    ``# 1 and 100 which are multiple of 5``    ``print` `(random.randint(``1``, ``20``) ``*` `5``)`

Output :

```60
30
35
100
85
25
100
20
90
85```

Drawbacks :

• Generating Random numbers is not unique, Same number can repeat itself.
• It generates only Integer values.

#### 2. Generating Random String as Ids’

Generating Random string id’s consists of letters and digits. This can be useful in generating passwords as its provide the encryption and decryption technique.

Code #1 : Show how to generate random string id’s.

## Python3

 `# Python3 code to demonstrate the``# random generation of string id's` `import` `random``import` `string` `# Generate a random string``# with 32 characters.``random ``=` `''.join([random.choice(string.ascii_letters``            ``+` `string.digits) ``for` `n ``in` `range``(``32``)])` `# print the random``# string of length 32``print` `(random)`

Output :

`Rf2IdqUNkURNN6mw82kSpyxQe9ib3usX`

Code #2 : Using Function call

## Python3

 `# Python3 code to demonstrate``# the random generation of string id's` `import` `random``import` `string` `# defining function for random``# string id with parameter``def` `ran_gen(size, chars``=``string.ascii_uppercase ``+` `string.digits):``    ``return` `''.join(random.choice(chars) ``for` `x ``in` `range``(size))` `# function call for random string``# generation with size 8 and string``print` `(ran_gen(``8``, ``"AEIOSUMA23"``))`

Output :

`S2M2IEAO`

My Personal Notes arrow_drop_up