random.randrange

[ameliand rea]

Hi there!

I am a beginner and I am sure this is a beginners question...

I want to define x as a random number from a specific range --> x = random.randrange($lower_x, $upper_x, 1)

I defined lower_x and upper_x in a separate excel file.

This is the error message:

    x = random.randrange($lower_x, $upper_x, 1)

                         ^

SyntaxError: invalid syntax

When I replace 

$lower_x, $upper_x by numbers, it works.

What's wrong?

Thanks for your help!!

[Jonas Lindeløv]

Looks like you're used to PHP programming. Variables are not prefixed with $ in python. Just do

lower = 2

upper = 6

x = random.randrange(lower, upper, 1)

Best,

Jonas

[Jonathan Peirce]

Actually Jonas, this is probably a carry-over from Builder where the $
is used to differentiate literal values from code.
Ameliand, Jonas' advice is exactly correct. When you write into a code
component or script, you should omit any dollar signs. You only need
them in dialog box entries. :-)

x = random.randrange(lower_x, upper_x, 1)

On 14/02/2014 11:47, Jonas Lindeløv wrote:
> Looks like you're used to PHP programming. Variables are not prefixed
> with $ in python.

--
Jonathan Peirce
Nottingham Visual Neuroscience

http://www.peirce.org.uk

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[Jonas Lindeløv]

Doh! Yes that occurred to me a few minutes ago and I went here to correct myself. Thanks for clarifying!

Best,

Jonas

[ameliand rea]

Hi!

Thanks so much for your help!!

I tried several things and strangely, the only thing working is:

rand.randrange(lower_x, upper_x, 1)

(not "random")

Thanks for your help and best regard

amelia