running a random function

[David Bear]

I would like to write some code that would randomly select a function from a
list of functions and call it. I was looking in the globals names space and
randomly selecting items that were of type function.. but I didn't see a
way of actually running the function.

Any pointers?

--
David Bear
-- let me buy your intellectual property, I want to own your thoughts --

[Brian van den Broek]

David Bear said unto the world upon 06/07/2007 11:56 AM:

I would like to write some code that would randomly select a function from a
list of functions and call it. I was looking in the globals names space and
randomly selecting items that were of type function.. but I didn't see a
way of actually running the function.

Any pointers?

Unless I've missed your meaning:

>>import random
def f(): print 42

....

>>def g(): print 24

....

>>funcs = [f,g]
random.choice (funcs)()

24
Best,

Brian vdB

[Marc 'BlackJack' Rintsch]

In <1654405.LVbK4P 6cM3@teancum>, David Bear wrote:

I would like to write some code that would randomly select a function from a
list of functions and call it. I was looking in the globals names space and
randomly selecting items that were of type function.. but I didn't see a
way of actually running the function.

If you have a function or callable you call it with the "call operator",
which are parenthesis:

In [8]: int
Out[8]: <type 'int'>

In [9]: int()
Out[9]: 0

For a random selection of an element from a list look at the
`random.choice( )` function.

Ciao,
Marc 'BlackJack' Rintsch

[Matimus]

How are you making the list of functions? Something like this:

fs = []
for k,f in globals():
if callable(f):
fs.append(f)
 

Then to call a random one (assuming they all take no parameters):

import random
random.choice(fs)()
 

Or maybe you only have the name of the function, this should work:

globals()[name]()
 

Does this help? I'm not really clear on what you are asking for.

[Dustan]

On Jun 7, 10:56 am, David Bear <david.b...@asu .eduwrote:

I would like to write some code that would randomly select a function from a
list of functions and call it. I was looking in the globals names space and
randomly selecting items that were of type function..

Careful!!! You don't want to destroy your computer by accident.

but I didn't see a
way of actually running the function.

What do you mean? foo is a function; here's how you run it:

foo()

Any pointers?

Given a list of functions, it would simply be, given the list of
functions bar (untested):

import random
random.choice(b ar)()

[Roberto Bonvallet]

On 7 jun, 11:56, David Bear <david.b...@asu .eduwrote:

I would like to write some code that would randomly select a function from a
list of functions and call it. I was looking in the globals names space and
randomly selecting items that were of type function.. but I didn't see a
way of actually running the function.

Try this:

def f(x):
print "Calling f with arg %s" % x
def g(x):
print "Calling g with arg %s" % x
def h(x):
print "Calling h with arg %s" % x

import random
functions = [f, g, h]
for i in range(10):
random.choice(f unctions)(25)

HTH, cheers.
--
Roberto Bonvallet

[Stebanoid]

On 7 , 19:56, David Bear <david.b...@asu .eduwrote:

I would like to write some code that would randomly select a function from a
list of functions and call it. I was looking in the globals names space and
randomly selecting items that were of type function.. but I didn't see a
way of actually running the function.

Any pointers?

--
David Bear
-- let me buy your intellectual property, I want to own your thoughts --

if you have a list of functions you can try this:

import random
import math
m[int(math.ceil(r andom.random()) )]() #seems like Lisp code :)

but what about functions arguments?
Strange task... Very strange....

[Stebanoid]

On 7 , 19:56, David Bear <david.b...@asu .eduwrote:

I would like to write some code that would randomly select a function from a
list of functions and call it. I was looking in the globals names space and
randomly selecting items that were of type function.. but I didn't see a
way of actually running the function.

Any pointers?

--
David Bear
-- let me buy your intellectual property, I want to own your thoughts --

if you have a list of functions you can try this:

import random
import math
m[int(math.floor( len(m)*random.r andom()))]() # seems like Lisp
code :D

where m - is list of functions.
but what about functions arguments?
Strange task.. Very strange...

[Neil Cerutti]

On 2007-06-07, Stebanoid <St*******@gmai l.comwrote:

if you have a list of functions you can try this:

import random
import math
m[int(math.floor( len(m)*random.r andom()))]() # seems like Lisp

Or rather m[random.randint( 0, len(m))]()

--
Neil Cerutti
Caution: Cape does not enable user to fly. --Kenner's Batman costume

[Dustan]

On Jun 7, 1:30 pm, Neil Cerutti <horp...@yahoo. comwrote:

On 2007-06-07, Stebanoid <Steban...@gmai l.comwrote:

if you have a list of functions you can try this:

import random
import math
m[int(math.floor( len(m)*random.r andom()))]() # seems like Lisp

Or rather m[random.randint( 0, len(m))]()

Or rather random.choice(m )() # seems like Python

--
Neil Cerutti
Caution: Cape does not enable user to fly. --Kenner's Batman costume