Re: [Quantlib-users] Error in writing Python tests for FXForward

[Luigi B. <lui...@gm...>]

Your new class is not in QuantLib 1.41.  You need to check out the latest
versions of QuantLib and QuantLib-SWIG from GitHub and use those ones.

Luigi


On Sat, Mar 14, 2026 at 5:41 AM Chirag Desai <chi...@ya...>
wrote:

> Thank you Mr Luigi
>
> 1) I added in ql.i and recompiled Quantlib as well
>
> 2) I get error messages now when building the wheel stating FXForward
> class cannot be found. I have attached the error messages.
>
> Build was successful
> [image: Inline image]
>
> [image: Inline image]
>
>
>
> On Friday, March 13, 2026 at 10:50:47 PM GMT+8, Luigi Ballabio <
> lui...@gm...> wrote:
>
>
> Hi Chirag, did you add your fxforward.i to the files included in ql.i ?
>
> Luigi
>
>
> On Fri, Mar 13, 2026 at 7:42 AM Chirag Desai <chi...@ya...>
> wrote:
>
> Hi All
> I built Quantlib with the new fxforward.hpp, fxforward.cpp ,
> fxforwarddiscountingengine hpp.cpp which I had recently contributed and
> successfully in my own version of Quantlib 1.41. All tests work
>
> I placed my fxforward.i file and swig runs successfully
>
> The wheel is generated successfully
>
> I am able to pip install the wheel and successfully can “import Quantlib
> as ql” and also can run certain Python files under SWIG in Examples and
> Tests (european-option.py, test_blackformula.py)
>
> For some reason my FX Forward tests all fail. (attached test_fxforward.py)
>
> How do I check if my FXForward class was successfully exposed to the
> Python API ? If any tools available ?
>
> When I do ql.  there is no dropdown either in IDE like VSCode to see what
> ql functions are being exposed in Python ?
> Thank you all
>
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>