How to print assert condition in normal function?

[fly50789]

In normal case

assert a>b,'assert message'

will not show variable a and b.

But in pytest, I can see variable when assert fail.

I wonder if I can see variable in normal function?

Or I shouldn't use that feature?

[RonnyPfannschmidt]

It's not clear what you mean by "see variable" and "normal function"

Can you provide an example and/or elaborate in more detail

[fly50789]

In normal case.

I cant see variable a,b in stderr

>>> a =1
>>> b =2
>>> assert a>b, 'assert message'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AssertionError: assert message

But in pytest, I can saw the result about variable a and b.

def test_assert():
    a=1
    b=3
    assert a>b,'assert message'

tests/remote/test_scheduler_v2.py::test_assert FAILED

================================================================================== FAILURES ==================================================================================
________________________________________________________________________________ test_assert _________________________________________________________________________________ 

    def test_assert():
        a=1
        b=3
>       assert a>b,'assert message'
E       assert message
E       assert 1 > 3

[fly50789]

Also sorry about I cant represent my opinion much clearer since eng is not my mother tongue

[fly50789]

I know I can write code like below.
But I feel if it can add it automatically is very helpful

a= 1 
b = 2
a >b , f'{a=} {b=} assert fail'

[RonnyPfannschmidt]

this is the pytest assertion rewriting feature

i'm not aware of a implementation of it for normal python runnin

[fly50789]

@RonnyPfannschmidt ok, thank you anyway.
Pytest help me a lot.
Thanks for this perfect tool.