Weird Error in with 'range' in embedded python

Python Help
1

I have this code:

from math import *
def profile(x):
    prof=[]
    for i in range(6):
        ang=3.14*i/3.0
        prof.append([3+cos(ang),sin(ang)])
   
    return prof

when i call this function, i get:

NameError: name ‘range’ is not defined

when i use [0,1,2,3,4,5] instead of range(6)
my code works, but its not generic anymore .

how can that be ?
where is the range generator supposed to be defined and whats going wrong in my place ?

2

At first glance I do not know why this would happen. But your post title mentions that you are using embedded Python - what distribution and version of Python are you using, exactly? I wonder if it could be something distribution specific.

Also for what it is worth - global built-in functions are also accessible through the standard library builtins module: https://docs.python.org/3.11/library/builtins.html

1 Like
3

Its really odd for range to be missing. As was said: it’s a built-in.

Worst case you can write your own range function:

def myrange(x):
    idx = 0
    while idx < x:
        yield idx
        idx += 1

Of course if you need more than this basic version, you can extend it to add the step, count fields too.

(Written on my phone, so ignore small mistypes)

4

Accurately, it is not pythonic but still workable and gives identical results in any other platforms.

5

Yes, this does the trick!
I did
from builtins import *

Apparently this is done implicitly with the interpreter and has to be done separately for embedded. Thank you . I am using Fedora core37, but that should not matter