Run core tests in Safari. Partially addresses https://github.com/pyodide/pyodide/issues/989

It runs, but there are several test failures, I'll open separate issues about those.
package:
  name: py
  version: 1.11.0
  top-level:
    - py
source:
  sha256: 607c53218732647dff4acdfcd50cb62615cedf612e72d1724fb1a0cc6405b378
  url: https://files.pythonhosted.org/packages/f6/f0/10642828a8dfb741e5f3fbaac830550a518a775c7fff6f04a007259b0548/py-1.11.0-py2.py3-none-any.whl
test:
  imports:
    - py
    - py.code
about:
  home: https://py.readthedocs.io/
  PyPI: https://pypi.org/project/py
  summary: library with cross-python path, ini-parsing, io, code, log facilities
  license: MIT license

package:
  name: py
  version: 1.11.0
  top-level:
    - py
source:
  sha256: 607c53218732647dff4acdfcd50cb62615cedf612e72d1724fb1a0cc6405b378
  url: https://files.pythonhosted.org/packages/f6/f0/10642828a8dfb741e5f3fbaac830550a518a775c7fff6f04a007259b0548/py-1.11.0-py2.py3-none-any.whl
test:
  imports:
    - py
    - py.code
about:
  home: https://py.readthedocs.io/
  PyPI: https://pypi.org/project/py
  summary: library with cross-python path, ini-parsing, io, code, log facilities
  license: MIT license
