Mapping operator tokens to special methods

[jamesthiele.usenet]

I was starting to write a dictionary to map operator strings to their
equivalent special methods such as:
{
'+' : 'add',
'&' : 'and_'
}

The idea is to build a simple interactive calculator.

and was wondering if there is already something like this builtin?

Or is there a better way to do what I want?

 

[Steven Bethard]

I was starting to write a dictionary to map operator strings to their
equivalent special methods such as:
{
'+' : 'add',
'&' : 'and_'
}

The idea is to build a simple interactive calculator.

and was wondering if there is already something like this builtin?

Or is there a better way to do what I want?

There's not already a mapping builtin, but you should definitely look at
the operator module:

py> import operator
py> ops = {'+'perator.add, '&'perator.and_}
py> ops['+'](3, 2)
5
py> ops['&'](3, 2)
2

STeVe

 

[John Machin]

I was starting to write a dictionary to map operator strings to their
equivalent special methods such as:
{
'+' : 'add',
'&' : 'and_'
}

The idea is to build a simple interactive calculator.

and was wondering if there is already something like this builtin?

3

 

[jamesthiele.usenet]

3