[Tutor] Generating small random integer

[Kermit Rose]

From: Adam
Date: 02/19/06 18:25:05
To: Kermit Rose
Cc: tutor at python.org
Subject: Re: [Tutor] Generating small random integer
 

You might want to try the random module.

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Why did I get this diagnostic?


>>> factor0(3737)
[1, 0, 0, 3737, 1, 1, 3737, 1]

Traceback (most recent call last):
  File "<pyshell#50>", line 1, in -toplevel-
    factor0(3737)
  File "<pyshell#35>", line 12, in factor0
    v = transfac(v)
  File "<pyshell#48>", line 19, in transfac
    na = na + randint(1,na)
NameError: global name 'randint' is not defined
 

In the function that calls randint,   I placed the import command.

def transfac(v):
  import random
  a = v[0]

randint(a, b)

Return a random integer N such that a <= N <= b.




***********************


In general,  how can I find documentation on any particular function if I 
don't know what module it is in?

do a search on http://www.python.org/



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Patch: 3-argument pow() function


I found this, but it doesn't tell me how to use it.

I wanted to write a pseudo prime number tester.

So,  I wanted to use this function to test the value of

pow(2,(z-1)/2,z)  for positive integers z.


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