CODEWITHSUNDEEP
python
hkchakladar
hkchakladar

Reputation: 759

error during producing random integer in python

I am using python for producing random in integer between the two value from the user, My code is as follows. I am getting error:

from random import *

i1 = input('Enter the N1 :')
i2 = input('Enter the N2 :')

r = randint({0},{1}.format(i1,i2))

print r

Here I am taking i1 and i2 from user and want to produce random integer between i1 and i2.

I am getting the error:

File "index.py", line 6
    r = randint({0},{1}.format(i1,i2))
                  ^
SyntaxError: invalid syntax

Upvotes: 1

Views: 938

Answers (4)

anon582847382
anon582847382

Reputation: 20391

To fix everything just do:

r = random.randint(i1, i2)

After fixing the SyntaxError you will get another error due to passing a string to randint. Just do what I did above to fix that, you don't need .format at all.

Upvotes: 4

Scorpion_God
Scorpion_God

Reputation: 1509

Here's what you're trying to do:

  1. Import the randint function
  2. Get the lower and upper bounds from the user
  3. Print out a random integer between (inclusive) the bounds

Here's the code to do that:

from random import randint

a = input('Enter the lower bound: ')
b = input('Enter the upper bound: ')

print(randint(a, b))

NOTE: If you're using Python 3 you will need to convert a and b to integers e.g.

a = int(input('Enter the lower bound: '))

Upvotes: 1

bavaza
bavaza

Reputation: 11057

According to the manual, input is equivalent to eval(raw_input(prompt)), so you don't need to parse strings to integers - i1 and i2 are already integers. Instead do:

from random import randint

i1 = input('Enter N1:')
i2 = input('Enter N2:')
r = randint(i1, i2)
print r

BTW, you are missing quotes for the format string {0},{1}

Upvotes: 1

TerryA
TerryA

Reputation: 60024

You need to add quotation marks/apostrophes to make {0},{1} a string:

r = randint('{0},{1}'.format(i1,i2))

This will pass a string to the random integer function though. The function expects two integers. So all you need to do is:

r = randint(i1, i2)

Upvotes: 2

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