Support flower (pip package name "flwr")

I’m currently attempting to get flower working https://flower.dev/ however my first issue is that is requires a newer version of numpy (1.19) than what is currently rebuild in chaquopy.

I have attempted to build a newer version however hit the below error:

[Building wheel for numpy (setup.py): finished with status 'error'
  ERROR: Command errored out with exit status 1:
   command: /usr/bin/python3 -u -S -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-7u3qospz/numpy/setup.py'"'"'; __file__='"'"'/tmp/pip-install-7u3qospz/numpy/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-qkdymx1j --python-tag cp38
       cwd: /tmp/pip-install-7u3qospz/numpy/
  Complete output (73 lines):
  Running from numpy source directory.
  Cythonizing sources
  Processing numpy/random/_bounded_integers.pxd.in
  ERROR: Command errored out with exit status 1:

  Processing numpy/random/_mt19937.pyx
  Processing numpy/random/mtrand.pyx
  Processing numpy/random/_sfc64.pyx
  Processing numpy/random/_generator.pyx
  Processing numpy/random/_pcg64.pyx
  Processing numpy/random/bit_generator.pyx
  Processing numpy/random/_bounded_integers.pyx.in
  Processing numpy/random/_common.pyx
  Processing numpy/random/_philox.pyx
  blas_opt_info:
  blas_mkl_info:
  No module named 'numpy.distutils.disabledcompiler' in numpy.distutils; trying from distutils
  customize DisabledCompiler
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/tmp/pip-install-7u3qospz/numpy/setup.py", line 448, in <module>
      setup_package()
    File "/tmp/pip-install-7u3qospz/numpy/setup.py", line 440, in setup_package
      setup(**metadata)
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/core.py", line 135, in setup
      config = configuration()
    File "/tmp/pip-install-7u3qospz/numpy/setup.py", line 118, in configuration
      config.add_subpackage('numpy')
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/misc_util.py", line 1016, in add_subpackage
      config_list = self.get_subpackage(subpackage_name, subpackage_path,
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/misc_util.py", line 982, in get_subpackage
      config = self._get_configuration_from_setup_py(
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/misc_util.py", line 924, in _get_configuration_from_setup_py
      config = setup_module.configuration(*args)
    File "numpy/setup.py", line 8, in configuration
      config.add_subpackage('core')
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/misc_util.py", line 1016, in add_subpackage
      config_list = self.get_subpackage(subpackage_name, subpackage_path,
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/misc_util.py", line 982, in get_subpackage
      config = self._get_configuration_from_setup_py(
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/misc_util.py", line 924, in _get_configuration_from_setup_py
      config = setup_module.configuration(*args)
    File "numpy/core/setup.py", line 751, in configuration
      blas_info = get_info('blas_opt', 0)
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 581, in get_info
      return cl().get_info(notfound_action)
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 841, in get_info
      self.calc_info()
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 2026, in calc_info
      if self._calc_info(blas):
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 2012, in _calc_info
      return getattr(self, '_calc_info_{}'.format(name))()
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 1935, in _calc_info_mkl
      info = get_info('blas_mkl')
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 581, in get_info
      return cl().get_info(notfound_action)
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 841, in get_info
      self.calc_info()
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 1292, in calc_info
      info = self.check_libs2(lib_dirs, mkl_libs)
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 997, in check_libs2
      exts = self.library_extensions()
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 956, in library_extensions
      c = customized_ccompiler()
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/system_info.py", line 216, in customized_ccompiler
      global_compiler = _customized_ccompiler()
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/__init__.py", line 50, in customized_ccompiler
      c.customize('')
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/ccompiler.py", line 88, in <lambda>
      m = lambda self, *args, **kw: func(self, *args, **kw)
    File "/tmp/pip-install-7u3qospz/numpy/numpy/distutils/ccompiler.py", line 533, in CCompiler_customize
      self.compile([fn], output_dir=tmpdir,
    File "/media/sf_shared/FLDemo/backend/app/build/generated/python/bp.zip/setuptools/monkey.py", line 155, in compile
    File "/media/sf_shared/FLDemo/backend/app/build/generated/python/bp.zip/setuptools/monkey.py", line 185, in chaquopy_block_native
  distutils.errors.DistutilsPlatformError: CCompiler.compile: Chaquopy cannot compile native code
  ----------------------------------------
  ERROR: Command errored out with exit status 1: /usr/bin/python3 -u -S -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-7u3qospz/numpy/setup.py'"'"'; __file__='"'"'/tmp/pip-install-7u3qospz/numpy/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-qkdymx1j --python-tag cp38 Check the logs for full command output.
  ERROR: Command errored out with exit status 1: /usr/bin/python3 -u -S -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-7u3qospz/numpy/setup.py'"'"'; __file__='"'"'/tmp/pip-install-7u3qospz/numpy/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-qkdymx1j --python-tag cp38 Check the logs for full command output.]([url](url))

Any assistance or pointers would be great!

[mhsmith]

Thanks for the report. I’ll look into providing a new version of NumPy and get back to you in the next few days.

[mhsmith]

NumPy 1.21.4 is incompatible with TensorFlow 2.1.0 (#570), so we’ve removed it from the default repository. We’ve replaced it with NumPy 1.19.5, so flwr can still be installed.

If you need NumPy 1.21.4 for any reason, you can enable it by adding this line to the pip block in your build.gradle file:

options "--extra-index-url", "https://chaquo.com/pypi-extra/"