Windows build fails with recent master about boxes HOT 7 CLOSED

Building wheels for collected packages: boxes
  Building wheel for boxes (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py bdist_wheel did not run successfully.
  │ exit code: 1
  ╰─> [8 lines of output]
      running bdist_wheel
      running build
      running build_py
      updatePOT()
      xgettext: Öffnen der Datei »boxes/*.py« zum Lesen fehlgeschlagen: Invalid argument
      generate_mo_files()
      buildInkscapeExt()
      error: [WinError 2] Das System kann die angegebene Datei nicht finden
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for boxes
  Running setup.py clean for boxes
Failed to build boxes
ERROR: Could not build wheels for boxes, which is required to install pyproject.toml-based projects

git clone https://github.com/florianfesti/boxes.git boxes

cd boxes
 
#fix PO/MO translations manually by running the following commands:
xgettext -L Python -j --from-code=UTF-8 -o po/boxes.py.pot C:\boxes\po\boxes.py.pot -D C:\boxes\boxes
xgettext -L Python -j --from-code=UTF-8 -o po/boxes.py.pot C:\boxes\po\boxes.py.pot -D C:\boxes\boxes\generators
xgettext -L Python -j --from-code=UTF-8 -o po/boxes.py.pot C:\boxes\po\boxes.py.pot -D C:\boxes\scripts\boxesserver
xgettext -L Python -j --from-code=UTF-8 -o po/boxes.py.pot C:\boxes\po\boxes.py.pot -D C:\boxes\scripts\boxes
  
#returns errors like above - ignore that
python.exe setup.py build
 
#returns errors - ignore
python.exe setup.py install

dir /s /b /o:gn boxes\*.py > PYFILES
xgettext -L Python -j --from-code=utf-8 -o po/boxes.py.pot -n --files-from=PYFILES scripts/boxesserver scripts/boxes

#!/usr/bin/env python3

import glob
import os
import sys
import shutil
from subprocess import CalledProcessError, check_output
from setuptools import find_packages, setup
from setuptools.command.build_py import build_py


class CustomBuildExtCommand(build_py):
    """Customized setuptools install command - prints a friendly greeting."""

    def buildInkscapeExt(self):
        os.system("{} {} {}".format(sys.executable, os.path.join("scripts", "boxes2inkscape"), "inkex"))

    def updatePOT(self):
        os.system("{} {} {}".format(sys.executable, os.path.join("scripts", "boxes2pot"), "po/boxes.py.pot"))
        os.system("{} {}".format("xgettext -L Python -j --from-code=utf-8 -o po/boxes.py.pot -n --files-from=PYFILES", "scripts/boxesserver scripts/boxes"))

    def generate_mo_files(self):
        pos = glob.glob("po/*.po")

        for po in pos:
            lang = po.split(os.sep)[1][:-3].replace("-", "_")
            try:
                os.makedirs(os.path.join("locale", lang, "LC_MESSAGES"))
            except FileExistsError:
                pass
            os.system(f"msgfmt {po} -o locale/{lang}/LC_MESSAGES/boxes.py.mo")
            self.distribution.data_files.append(
                (os.path.join("share", "locale", lang, "LC_MESSAGES"),
                 [os.path.join("locale", lang, "LC_MESSAGES", "boxes.py.mo")]))

    def run(self):
        if self.distribution.data_files is None:
            self.distribution.data_files = []
        self.execute(self.updatePOT, ())
        self.execute(self.generate_mo_files, ())
        self.execute(self.buildInkscapeExt, ())

        if 'CURRENTLY_PACKAGING' in os.environ:
            # we are most probably building a Debian package
            # let us define a simple path!
            path="/usr/share/inkscape/extensions"
            self.distribution.data_files.append((path, [i for i in glob.glob(os.path.join("inkex", "*.inx"))]))
            self.distribution.data_files.append((path, ['scripts/boxes']))
            self.distribution.data_files.append((path, ['scripts/boxes_proxy.py']))
        else:
            # we are surely not building a Debian package
            # then here is the default behavior:
            try:
                if shutil.which("inkscape") is not None:
                    path = check_output(["inkscape", "--system-data-directory"]).decode().strip()
                    path = os.path.join(path, "extensions")
                    if not os.access(path, os.W_OK): # Can we install globally
                        # Not tested on Windows and Mac
                        path = os.path.expanduser("~/.config/inkscape/extensions")
                    print("5")
                    self.distribution.data_files.append((path, [i for i in glob.glob(os.path.join("inkex", "*.inx"))]))
                    self.distribution.data_files.append((path, ['scripts/boxes']))
                    self.distribution.data_files.append((path, ['scripts/boxes_proxy.py']))
            except CalledProcessError:
                pass # Inkscape is not installed

        build_py.run(self)


setup(
    name='boxes',
    version='0.9',
    description='Boxes generator for laser cutters',
    author='Florian Festi',
    author_email='[email protected]',
    url='https://github.com/florianfesti/boxes',
    packages=find_packages(),
    python_requires='>=3.8',
    install_requires=['affine>=2.0', 'markdown', 'shapely>=1.8.2', 'qrcode>=7.3.1'],
    scripts=['scripts/boxes', 'scripts/boxesserver'],
    cmdclass={
        'build_py': CustomBuildExtCommand,
    },
    classifiers=[ # https://pypi.python.org/pypi?%3Aaction=list_classifiers
        "Development Status :: 5 - Production/Stable",
        "Environment :: Console",
        "Environment :: Web Environment",
        "Intended Audience :: Manufacturing",
        "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
        "Programming Language :: Python :: 3",
        "Topic :: Multimedia :: Graphics :: Editors :: Vector-Based",
        "Topic :: Scientific/Engineering",
    ],
    keywords=["boxes", "box", "generator", "svg", "laser cutter"], )