[Tutor] arrays and strings

[Lloyd Kvam]

You don't really need #define with Python.  C needs #define to avoid
unnecessary type restrictions.

In C
#define MAX_DAYS 31
provides a number that will work for most contexts while
int MAX_DAYS=31;
will only work in integer contexts.

Since Python's type processing is dynamic and supports type checking,
you can simply state:
MAX_DAYS = 31
and use MAX_DAYS whereever necessary.  Effectively, it is a global, variable
and you want to avoid changing it.  In practise you use it as a constant that
is defined in one place.

Erik Price wrote:

> 
> On Wednesday, May 8, 2002, at 08:46  AM, wonderer@pakistanmail.com wrote:
> 
>> I m sorry to bother u again but i just wanted to know if there is any 
>> equivalent
>> of c-style #define in python
>> coz i m decalring a varianle globally in one file (util.py)and then 
>> want to
>> access in another file named test.py but that gives me error as 
>> NameError:"name"
>> not defined
> 
> 
> wonderer, fyi I CC'd this msg to the list b/c I'm no Python master, and 
> hopefully someone else can come up with something constructive.
> 
>  From what I understand of Python, you would want to import "util.py" as 
> a module into the script where you're trying to use the global variable, 
> which means that the global variable is now "util.variablename" (I 
> think).  I have no experience with C, so I'm not sure if this is the 
> same thing as #define (not sure what that is...)
> 
> Good luck though.
> 
> 
> Erik
> 
> 
> 
> _______________________________________________
> Tutor maillist  -  Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
> 


-- 
Lloyd Kvam
Venix Corp.
1 Court Street, Suite 378
Lebanon, NH 03766-1358

voice: 
603-443-6155
fax: 
801-459-9582