kivy-ios: Cannot build pil/pillow

Hi,

I am using a VENV, the build for kivy is now successful but I cannot build pillow. I assume it has to do with setuptools and the PYTHONPATH as shown in the log:

(venv) geoffreykasenbacher@Geoffreys-MBP ~ % toolchain build pillow
[INFO    ] Building with 4 processes, where supported
[INFO    ] Want to build ['pillow']
[INFO    ] Loaded recipe pillow (depends of ['hostpython3', 'host_setuptools3', 'freetype', 'libjpeg', 'python3', 'ios'], optional are [])
[INFO    ] Loaded recipe hostpython3 (depends of ['hostlibffi', 'hostopenssl'], optional are [])
[INFO    ] Loaded recipe host_setuptools3 (depends of ['openssl', 'hostpython3'], optional are [])
[INFO    ] Loaded recipe freetype (depends of [], optional are [])
[INFO    ] Loaded recipe libjpeg (depends of [], optional are [])
[INFO    ] Loaded recipe python3 (depends of ['hostpython3', 'libffi', 'openssl'], optional are [])
[INFO    ] Loaded recipe ios (depends of ['python'], optional are [])
[INFO    ] Loaded recipe hostlibffi (depends of [], optional are [])
[INFO    ] Loaded recipe hostopenssl (depends of [], optional are [])
[INFO    ] Loaded recipe openssl (depends of [], optional are [])
[INFO    ] Loaded recipe libffi (depends of [], optional are [])
[INFO    ] Loaded recipe python (depends of ['python3'], optional are [])
[INFO    ] Build order is ['freetype', 'hostlibffi', 'hostopenssl', 'libffi', 'libjpeg', 'openssl', 'hostpython3', 'host_setuptools3', 'python3', 'python', 'ios', 'pillow']
[INFO    ] Recipe order is ['freetype', 'hostlibffi', 'hostopenssl', 'libffi', 'libjpeg', 'openssl', 'hostpython3', 'host_setuptools3', 'python3', 'ios', 'pillow']
[INFO    ] Include dir added: {arch.arch}/freetype
[INFO    ] Include dir added: {arch.arch}/hostlibffi
[INFO    ] Include dir added: {arch.arch}/ffi
[INFO    ] Include dir added: {arch.arch}/libjpeg
[INFO    ] Include dir added: {arch.arch}/openssl
[INFO    ] Global: hostpython located at /Users/geoffreykasenbacher/dist/hostpython3/bin/python
[INFO    ] Global: hostpgen located at /Users/geoffreykasenbacher/dist/hostpython3/bin/pgen
[DEBUG   ] Cached result: Download freetype. Ignoring
[DEBUG   ] Cached result: Extract freetype. Ignoring
[DEBUG   ] Cached result: Build_all freetype. Ignoring
[DEBUG   ] Cached result: Download hostlibffi. Ignoring
[DEBUG   ] Cached result: Extract hostlibffi. Ignoring
[INFO    ] Build hostlibffi for x86_64 (filtered)
[DEBUG   ] Cached result: Build hostlibffi. Ignoring
[DEBUG   ] New State: hostlibffi.build_all at 2020-07-11 09:58:27.049845
[DEBUG   ] Cached result: Download hostopenssl. Ignoring
[DEBUG   ] Cached result: Extract hostopenssl. Ignoring
[DEBUG   ] Cached result: Build_all hostopenssl. Ignoring
[DEBUG   ] Cached result: Download libffi. Ignoring
[DEBUG   ] Cached result: Extract libffi. Ignoring
[DEBUG   ] Cached result: Build_all libffi. Ignoring
[DEBUG   ] Cached result: Download libjpeg. Ignoring
[DEBUG   ] Cached result: Extract libjpeg. Ignoring
[DEBUG   ] Cached result: Build_all libjpeg. Ignoring
[DEBUG   ] Cached result: Download openssl. Ignoring
[DEBUG   ] Cached result: Extract openssl. Ignoring
[DEBUG   ] Cached result: Build_all openssl. Ignoring
[DEBUG   ] Cached result: Download hostpython3. Ignoring
[DEBUG   ] Cached result: Extract hostpython3. Ignoring
[DEBUG   ] Cached result: Build_all hostpython3. Ignoring
[DEBUG   ] Cached result: Download host_setuptools3. Ignoring
[DEBUG   ] Cached result: Extract host_setuptools3. Ignoring
[DEBUG   ] Cached result: Build_all host_setuptools3. Ignoring
[DEBUG   ] Cached result: Download python3. Ignoring
[DEBUG   ] Cached result: Extract python3. Ignoring
[DEBUG   ] Cached result: Build_all python3. Ignoring
[DEBUG   ] Cached result: Download ios. Ignoring
[DEBUG   ] Cached result: Extract ios. Ignoring
[DEBUG   ] Cached result: Build_all ios. Ignoring
[DEBUG   ] Cached result: Download pillow. Ignoring
[DEBUG   ] Cached result: Extract pillow. Ignoring
[INFO    ] Build_all pillow
[INFO    ] Build pillow for x86_64, arm64 (filtered)
[DEBUG   ] Cached result: Build pillow. Ignoring
[DEBUG   ] Cached result: Build pillow. Ignoring
[INFO    ] Create lipo library for pillow
[INFO    ] Lipo pillow to /Users/geoffreykasenbacher/dist/lib/libpillow.a
[DEBUG   ] Cached result: Make_lipo pillow. Ignoring
[INFO    ] Install include files for pillow
[DEBUG   ] Cached result: Install_include pillow. Ignoring
[INFO    ] Install frameworks for pillow
[DEBUG   ] Cached result: Install_frameworks pillow. Ignoring
[INFO    ] Install sources for pillow
[DEBUG   ] Cached result: Install_sources pillow. Ignoring
[INFO    ] Install python deps for pillow
[DEBUG   ] Cached result: Install_python_deps pillow. Ignoring
[INFO    ] Install pillow
[INFO    ] CC and CXX will not use ccache
[INFO    ] Running Shell: /Users/geoffreykasenbacher/dist/hostpython3/bin/python ('setup.py', 'install', '--prefix', '/Users/geoffreykasenbacher/dist/root/python3') {'_env': {'CC': '/var/folders/72/5r62rbzx09qdvpzp_xjt1b940000gn/T/tmp3pdv94bp', 'CXX': '/var/folders/72/5r62rbzx09qdvpzp_xjt1b940000gn/T/tmpm90_d_q2', 'AR': '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar', 'LD': '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld', 'OTHER_CFLAGS': '-I/Users/geoffreykasenbacher/dist/include/x86_64/freetype -I/Users/geoffreykasenbacher/dist/include/x86_64/hostlibffi -I/Users/geoffreykasenbacher/dist/include/x86_64/ffi -I/Users/geoffreykasenbacher/dist/include/x86_64/libjpeg -I/Users/geoffreykasenbacher/dist/include/x86_64/openssl -I/Users/geoffreykasenbacher/dist/include/x86_64', 'OTHER_LDFLAGS': '-L/Users/geoffreykasenbacher/dist/lib', 'CFLAGS': '-I/Users/geoffreykasenbacher/dist/include/x86_64/freetype -I/Users/geoffreykasenbacher/dist/include/x86_64/libjpeg -arch x86_64', 'LDFLAGS': '-arch x86_64 -L/Users/geoffreykasenbacher/dist/lib -L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.5.sdk/usr/lib -miphoneos-version-min=8.0', 'IOSROOT': '/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios', 'IOSSDKROOT': '/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.5.sdk', 'LDSHARED': '/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/tools/liblink', 'ARM_LD': '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld', 'ARCH': 'x86_64', 'C_INCLUDE_PATH': '/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.5.sdk/usr/include', 'LIBRARY_PATH': '/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.5.sdk/usr/lib', 'PATH': '/Users/geoffreykasenbacher/venv/bin:/Library/Frameworks/Python.framework/Versions/3.7/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin', 'PYTHONPATH': '/Users/geoffreykasenbacher/dist/root/python3/lib/python3.7/site-packages'}, '_iter': True, '_out_bufsize': 1, '_err_to_out': True}
[DEBUG   ] running install
[DEBUG   ] Checking .pth file support in /Users/geoffreykasenbacher/dist/root/python3/lib/python3.8/site-packages/
[DEBUG   ] /Users/geoffreykasenbacher/dist/hostpython3/bin/python -E -c pass
[DEBUG   ] TEST FAILED: /Users/geoffreykasenbacher/dist/root/python3/lib/python3.8/site-packages/ does NOT support .pth files
[DEBUG   ] error: bad install directory or PYTHONPATH
[DEBUG   ] 
[DEBUG   ] You are attempting to install a package to a directory that is not
[DEBUG   ] on PYTHONPATH and which Python does not read ".pth" files from.  The
[DEBUG   ] installation directory you specified (via --install-dir, --prefix, or
[DEBUG   ] the distutils default setting) was:
[DEBUG   ] 
[DEBUG   ]     /Users/geoffreykasenbacher/dist/root/python3/lib/python3.8/site-packages/
[DEBUG   ] 
[DEBUG   ] and your PYTHONPATH environment variable currently contains:
[DEBUG   ] 
[DEBUG   ]     '/Users/geoffreykasenbacher/dist/root/python3/lib/python3.7/site-packages'
[DEBUG   ] 
[DEBUG   ] Here are some of your options for correcting the problem:
[DEBUG   ] 
[DEBUG   ] * You can choose a different installation directory, i.e., one that is
[DEBUG   ]   on PYTHONPATH or supports .pth files
[DEBUG   ] 
[DEBUG   ] * You can add the installation directory to the PYTHONPATH environment
[DEBUG   ]   variable.  (It must then also be on PYTHONPATH whenever you run
[DEBUG   ]   Python and want to use the package(s) you are installing.)
[DEBUG   ] 
[DEBUG   ] * You can set up the installation directory to support ".pth" files by
[DEBUG   ]   using one of the approaches described here:
[DEBUG   ] 
[DEBUG   ]   https://setuptools.readthedocs.io/en/latest/easy_install.html#custom-installation-locations
[DEBUG   ] 
[DEBUG   ] 
[DEBUG   ] Please make the appropriate changes for your system and try again.
Exception in thread background thread for pid 16799:
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 917, in _bootstrap_inner
    self.run()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 865, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/sh.py", line 1662, in wrap
    fn(*args, **kwargs)
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/sh.py", line 2606, in background_thread
    handle_exit_code(exit_code)
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/sh.py", line 2304, in fn
    return self.command.handle_command_exit_code(exit_code)
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/sh.py", line 877, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /Users/geoffreykasenbacher/dist/hostpython3/bin/python setup.py install --prefix /Users/geoffreykasenbacher/dist/root/python3

  STDOUT:
running install
Checking .pth file support in /Users/geoffreykasenbacher/dist/root/python3/lib/python3.8/site-packages/
/Users/geoffreykasenbacher/dist/hostpython3/bin/python -E -c pass
TEST FAILED: /Users/geoffreykasenbacher/dist/root/python3/lib/python3.8/site-packages/ does NOT support .pth files
error: bad install directory or PYTHONPATH

You are attempting to install a package to a directory that is not
on PYTHONPATH and which Python does not read ".pth" files from.  The
installation directory you specified (via --install-dir, --prefix, or
the distutils default setting) was:

    /Users/geoffreykasenbacher/dist/root/python3/lib/python3.8/site-packages/

and your PYTHONPATH environment variable currently contains:

    '/Users/geoffreyk... (709 more, please see e.stdout)

  STDERR:


Traceback (most recent call last):
  File "/Users/geoffreykasenbacher/venv/bin/toolchain", line 11, in <module>
    sys.exit(main())
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/toolchain.py", line 1497, in main
    ToolchainCL()
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/toolchain.py", line 1270, in __init__
    getattr(self, args.command)()
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/toolchain.py", line 1323, in build
    build_recipes(args.recipe, ctx)
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/toolchain.py", line 1121, in build_recipes
    recipe.execute()
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/toolchain.py", line 700, in execute
    self.build_all()
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/toolchain.py", line 85, in _cache_execution
    f(self, *args, **kwargs)
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/toolchain.py", line 821, in build_all
    self.install()
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/recipes/pillow/__init__.py", line 49, in install
    _env=build_env)
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/kivy_ios/toolchain.py", line 67, in shprint
    for line in cmd:
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/sh.py", line 925, in next
    self.wait()
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/sh.py", line 849, in wait
    self.handle_command_exit_code(exit_code)
  File "/Users/geoffreykasenbacher/venv/lib/python3.7/site-packages/sh.py", line 877, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /Users/geoffreykasenbacher/dist/hostpython3/bin/python setup.py install --prefix /Users/geoffreykasenbacher/dist/root/python3

  STDOUT:
running install
Checking .pth file support in /Users/geoffreykasenbacher/dist/root/python3/lib/python3.8/site-packages/
/Users/geoffreykasenbacher/dist/hostpython3/bin/python -E -c pass
TEST FAILED: /Users/geoffreykasenbacher/dist/root/python3/lib/python3.8/site-packages/ does NOT support .pth files
error: bad install directory or PYTHONPATH

You are attempting to install a package to a directory that is not
on PYTHONPATH and which Python does not read ".pth" files from.  The
installation directory you specified (via --install-dir, --prefix, or
the distutils default setting) was:

    /Users/geoffreykasenbacher/dist/root/python3/lib/python3.8/site-packages/

and your PYTHONPATH environment variable currently contains:

    '/Users/geoffreyk... (709 more, please see e.stdout)

  STDERR: