def register_and_unregister_json(self):
"""Setup & teardown for JSON read/write tests."""
# Register
readwrite_registry.register_reader("json", Cosmology, read_json, force=True)
readwrite_registry.register_writer("json", Cosmology, write_json, force=True)
readwrite_registry.register_identifier("json", Cosmology, json_identify, force=True)
yield # Run all tests in class
# Unregister
readwrite_registry.unregister_reader("json", Cosmology)
readwrite_registry.unregister_writer("json", Cosmology)
readwrite_registry.unregister_identifier("json", Cosmology)
def setup_readwrite(self):
"""Setup & teardown for read/write tests."""
# register
readwrite_registry.register_reader("json", Cosmology, read_json, force=True)
readwrite_registry.register_writer("json", Cosmology, write_json, force=True)
readwrite_registry.register_identifier("json", Cosmology, json_identify, force=True)
yield # run all tests in class
# unregister
readwrite_registry.unregister_reader("json", Cosmology)
readwrite_registry.unregister_writer("json", Cosmology)
readwrite_registry.unregister_identifier("json", Cosmology)
**kwargs
Passed to ``cls.write``
Raises
------
TypeError
If kwarg (optional) 'cls' is not a subclass of `astropy.table.Table`
"""
table = to_table(cosmology, cls=cls, cosmology_in_meta=cosmology_in_meta)
kwargs["format"] = "ascii.ecsv"
table.write(file, overwrite=overwrite, **kwargs)
def ecsv_identify(origin, filepath, fileobj, *args, **kwargs):
"""Identify if object uses the Table format.
Returns
-------
bool
"""
return filepath is not None and filepath.endswith(".ecsv")
# ===================================================================
# Register
readwrite_registry.register_reader("ascii.ecsv", Cosmology, read_ecsv)
readwrite_registry.register_writer("ascii.ecsv", Cosmology, write_ecsv)
readwrite_registry.register_identifier("ascii.ecsv", Cosmology, ecsv_identify)
cosmology : `~astropy.cosmology.Cosmology` instance
file : str, bytes, or `~os.PathLike`
overwrite : bool (optional, keyword-only)
Whether to overwrite an existing file. Default is False.
"""
cosmo = cosmology.to_format(
"mypackage") # ← convert Cosmology ↓ write file
file_writer(file, cosmo, overwrite=overwrite)
def myformat_identify(origin, filepath, fileobj, *args, **kwargs):
"""Identify if object uses ``myformat`` (JSON)."""
return filepath is not None and filepath.endswith(".myformat")
# -------------------------------------------------------------------
# Register read/write/identify methods with Astropy Unified I/O
readwrite_registry.register_reader("myformat",
Cosmology,
read_myformat,
force=True)
readwrite_registry.register_writer("myformat",
Cosmology,
write_myformat,
force=True)
readwrite_registry.register_identifier("myformat",
Cosmology,
myformat_identify,
force=True)
return Cosmology.from_format(mycosmo, format="mypackage", **kwargs)
def write_myformat(cosmology, file, *, overwrite=False):
"""Write files in format 'myformat'.
Parameters
----------
cosmology : `~astropy.cosmology.Cosmology` instance
file : str, bytes, or `~os.PathLike`
overwrite : bool (optional, keyword-only)
Whether to overwrite an existing file. Default is False.
"""
cosmo = cosmology.to_format(
"mypackage") # ← convert Cosmology ↓ write file
file_writer(file, cosmo, overwrite=overwrite)
def myformat_identify(origin, filepath, fileobj, *args, **kwargs):
"""Identify if object uses ``myformat`` (JSON)."""
return filepath is not None and filepath.endswith(".myformat")
# -------------------------------------------------------------------
# Register read/write/identify methods with Astropy Unified I/O
readwrite_registry.register_reader("myformat", Cosmology, read_myformat)
readwrite_registry.register_writer("myformat", Cosmology, write_myformat)
readwrite_registry.register_identifier("myformat", Cosmology,
myformat_identify)