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"""A custom hatch build hook for ipykernel."""
import shutil
import sys
from pathlib import Path
from hatchling.builders.hooks.plugin.interface import BuildHookInterface
class CustomHook(BuildHookInterface):
"""The IPykernel build hook."""
def initialize(self, version, build_data):
"""Initialize the hook."""
here = Path(__file__).parent.resolve()
sys.path.insert(0, str(here))
from ipykernel.kernelspec import make_ipkernel_cmd, write_kernel_spec
overrides = {}
# When building a standard wheel, the executable specified in the kernelspec is simply 'python'.
if version == "standard":
overrides["metadata"] = dict(debugger=True)
argv = make_ipkernel_cmd(executable="python")
# When installing an editable wheel, the full `sys.executable` can be used.
else:
argv = make_ipkernel_cmd()
overrides["argv"] = argv
dest = Path(here) / "data_kernelspec"
if Path(dest).exists():
shutil.rmtree(dest)
write_kernel_spec(dest, overrides=overrides)
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