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error on examples using scipy #33

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FloGom opened this issue Oct 17, 2023 · 3 comments
Open

error on examples using scipy #33

FloGom opened this issue Oct 17, 2023 · 3 comments

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@FloGom
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FloGom commented Oct 17, 2023

Hello,

I have installed the package as explained in the documentation and I have tried to run the examples.
Some examples like ex_axes_1.py or ex_BMI.py are working great.
Others more complex like LC_filter.py or ex_amortized_loan.py are failling with the following error (last part) :

File "C:\_UsersDatas\Miniconda3\envs\nomography\Lib\site-packages\scipy\optimize\_optimize.py", line 899, in _minimize_neldermead
    fsim[k] = func(sim[k])
    ~~~~^^^
TypeError: float() argument must be a string or a real number, not 'complex'

I guess it is linked to a change in the last version of scipy.
The version I am using is scipy 1.11.3 py311hc1ccb85_0 on windows.

What was the version of scipy used to develop PyNomo?

By the way, nice work! 😃
I try to use Nomography in my current research work to obtain a fast design tool and at the same time more insights from the equation.
@FloGom
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FloGom commented Oct 17, 2023

After reading the old issues, I have found a solution.
Reverting back to python 3.5 solves the problem.
The following commands worked for me:

conda create -n nomography python=3.5 scipy six cython
pip install pyx
pip install pynomo

It remains some warnings in some example due to numerical problem or type inconsistency (complex vs float).

@tevorbl
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tevorbl commented Jun 2, 2024

I've now tested on python 3.11 and fixed these and a few other bugs that have appeared.
The fixes have been pushed and should appear in the master soon.

My fixes are here, if you need them sooner:
https://github.com/tevorbl/pynomo/tree/master/nomogen

@lefakkomies
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lefakkomies commented Jun 2, 2024 via email

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3 participants
@lefakkomies @FloGom @tevorbl