can't subtract from intersection

[solidboredom]

Hello,
this gives me an Error:

#!/usr/bin/env python3
#coding: utf-8

from zencad import *

def frame(offset):	return (cylinder(33/2+offset,400).rotY(deg(180)).back(70/2)
			+ cylinder(33/2+offset,400).rotY(deg(-115)).back(70/2) 
			+ cylinder(25/2+offset,400).rotY(deg(110)).back(25/2+3))

d = cylinder(60/2,70).rotX(deg(90)) -cylinder(45/2+offset,70).rotX(deg(90))

disp(intersect([frame(10),d])-frame(0))
show()

[oleg-medovikov]

it's your code. An error somewhere in the indentation.

[solidboredom]

Oh. Thanks Oleg,
CopyPasting to the Github ate my original indentations, but still: a fact is a fact.
i will try it again, it is either my indentation or something about my setup.

[mirmik]

line 9:
cylinder(45/2+offset,70)
45/2+offset - offset is not a variable in this context. Because it is outside the function.
It say "'float' and 'function'". The offset is internal python function. So it is really the function in global scope.

[solidboredom]

Sadly, the Problem perisists. I could reproduce the error free run, Oleg has screenshoted, but this is different from i intended/wrote. The same goes to Error mirmik has described.
Due to ambiguity of missing indentations in Python (eaten up by github) it changed its meaning to python! GRRRR!
i have updated my original post to possibly diasambigue the code

[mirmik]

You can use code snippets for python code.

def func(a,b):
    return a+b

source code of snippet:

```python
def func(a,b):
    return a+b       (here we use spaces. no tabs.)
```.(without dot)

[solidboredom]

Thanks Mirmik. i have fixed It. it looks good now. copypastingit reproduces the error for me

[solidboredom]

I mean the problem is still there. i have fixed the formatting on github

[mirmik]

So ok. Whats about offset variable in line 10?

[solidboredom]

I can't beleive it was so simple! it has nothing to do with the core operations. you were right. after all these years in software, after all.
it is time to learn to interpret pythons error mesages. will need to look at how to force obligatory variable delarations on it.
Thanks!