Uncompatible with swig4

[ergoithz]

Swig 4 deprecated -classic.

python-ESL/setup.py

Line 25 in a9ce418

swig_opts=['-classic', '-c++', '-DMULTIPLICITY', '-threads', '-I./ESL'],

Relevant output (compilation fails with exit status 1):

    swig -python -classic -c++ -DMULTIPLICITY -threads -I. -o ESL_wrap.cpp ESL.i
    Deprecated command line option: -classic. This option is no longer supported.
    error: command 'swig' failed with exit status 1

Tested in swig 4.0.1.

[mneirynck]

Same issue here, any fix for this? Just remove the -classic?

[gpetrom]

Same issue here also

[gpetrom]

Hi
I have manage to solve this
apt install git
and then pip install -e git+https://github.com/alexey-khabulyak/python-ESL#egg=python-ESL

[BasicExp]

You can also install with pip and lock swig to a 3.X.X version as well, which is what I ended up doing as python-ESL was the only package that was making use of it.