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[EDIT] FILE: macros.python3

%__python3 /usr/libexec/platform-python
%python3 %__python3
%python3_sitelib %(%{__python3} -Ic "from distutils.sysconfig import get_python_lib; print(get_python_lib())")
%python3_sitearch %(%{__python3} -Ic "from distutils.sysconfig import get_python_lib; print(get_python_lib(1))")
%python3_version %(%{__python3} -Ic "import sys; sys.stdout.write('{0.major}.{0.minor}'.format(sys.version_info))")
%python3_version_nodots %(%{__python3} -Ic "import sys; sys.stdout.write('{0.major}.{0.minor}'.format(sys.version_info).replace('.',''))")
%python3_platform %(%{__python3} -Ic "import sysconfig; print(sysconfig.get_platform())")
%python3_platform_triplet %(%{__python3} -Ic "import sysconfig; print(sysconfig.get_config_var('MULTIARCH'))")
%python3_ext_suffix %(%{__python3} -Ic "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))")
%py3dir %{_builddir}/python3-%{name}-%{version}-%{release}

%py3_shbang_opts -s
%py3_shbang_opts_nodash %(opts=%{py3_shbang_opts}; echo ${opts#-})
%py3_shebang_flags %(opts=%{py3_shbang_opts}; echo ${opts#-})
%py3_shebang_fix %{expand:\\\
  if [ -f /usr/bin/pathfix%{python3_version}.py ]; then
    pathfix=/usr/bin/pathfix%{python3_version}.py
  else
    # unversioned pathfix.py provided by platform-python-devel
    pathfix=/usr/bin/pathfix.py
  fi
  if [ -z "%{?py3_shebang_flags}" ]; then
    shebang_flags="-k"
  else
    shebang_flags="-ka%{py3_shebang_flags}"
  fi
  $pathfix -pni %{__python3} $shebang_flags}

# Use the slashes after expand so that the command starts on the same line as
# the macro
%py3_build() %{expand:\\\
  CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}"\\\
  %{__python3} %{py_setup} %{?py_setup_args} build --executable="%{__python3} %{py3_shbang_opts}" %{?*}
  sleep 1
}

%py3_build_egg() %{expand:\\\
  CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}"\\\
  %{__python3} %{py_setup} %{?py_setup_args} bdist_egg %{?*}
  sleep 1
}

%py3_build_wheel() %{expand:\\\
  CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}"\\\
  %{__python3} %{py_setup} %{?py_setup_args} bdist_wheel %{?*}
  sleep 1
}

%py3_install() %{expand:\\\
  CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}"\\\
  %{__python3} %{py_setup} %{?py_setup_args} install -O1 --skip-build --root %{buildroot} %{?*}
}

%py3_install_egg() %{expand:\\\
  mkdir -p %{buildroot}%{python3_sitelib}
  CFLAGS="%{optflags}" %{__python3} -m easy_install -m --prefix %{buildroot}%{_prefix} -Z dist/*-py%{python3_version}.egg %{?*}
}

%py3_install_wheel() %{expand:\\\
  CFLAGS="%{optflags}" %{__python3} -m pip install -I dist/%{1} --root %{buildroot} --strip-file-prefix %{buildroot} --no-deps
}

# This only supports Python 3.5+ and will never work with Python 2.
# Hence, it has no Python version in the name.
%pycached() %{lua:
  path = rpm.expand("%{?*}")
  if (string.sub(path, "-3") ~= ".py") then
    rpm.expand("%{error:%%pycached can only be used with paths explicitly ending with .py}")
  else
    print(path)
    pyminor = path:match("/python3.(%d+)/") or "*"
    dirname = path:match("(.*/)")
    modulename = path:match(".*/([^/]+).py")
    print("\\n" .. dirname .. "__pycache__/" .. modulename .. ".cpython-3" .. pyminor .. "{,.opt-?}.pyc")
  end
}

# This is intended for Python 3 only, hence also no Python version in the name.
%__pytest /usr/bin/pytest-%{_python3_pkgversion_with_dot}
%pytest %{expand:\\\
  CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}"\\\
  PATH="%{buildroot}%{_bindir}:$PATH"\\\
  PYTHONPATH="${PYTHONPATH:-%{buildroot}%{python3_sitearch}:%{buildroot}%{python3_sitelib}}"\\\
  PYTHONDONTWRITEBYTECODE=1\\\
  %__pytest}

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