Current File : /opt/hc_python/lib/python3.12/site-packages/virtualenv/discovery/windows//__init__.py
from __future__ import annotations
from virtualenv.discovery.py_info import PythonInfo
from virtualenv.discovery.py_spec import PythonSpec
from .pep514 import discover_pythons
# Map of well-known organizations (as per PEP 514 Company Windows Registry key part) versus Python implementation
_IMPLEMENTATION_BY_ORG = {
"ContinuumAnalytics": "CPython",
"PythonCore": "CPython",
}
class Pep514PythonInfo(PythonInfo):
"""A Python information acquired from PEP-514."""
def propose_interpreters(spec, cache_dir, env):
# see if PEP-514 entries are good
# start with higher python versions in an effort to use the latest version available
# and prefer PythonCore over conda pythons (as virtualenv is mostly used by non conda tools)
existing = list(discover_pythons())
existing.sort(
key=lambda i: (*tuple(-1 if j is None else j for j in i[1:4]), 1 if i[0] == "PythonCore" else 0),
reverse=True,
)
for name, major, minor, arch, threaded, exe, _ in existing:
# Map well-known/most common organizations to a Python implementation, use the org name as a fallback for
# backwards compatibility.
implementation = _IMPLEMENTATION_BY_ORG.get(name, name)
# Pre-filtering based on Windows Registry metadata, for CPython only
skip_pre_filter = implementation.lower() != "cpython"
registry_spec = PythonSpec(None, implementation, major, minor, None, arch, exe, free_threaded=threaded)
if skip_pre_filter or registry_spec.satisfies(spec):
interpreter = Pep514PythonInfo.from_exe(exe, cache_dir, env=env, raise_on_error=False)
if interpreter is not None and interpreter.satisfies(spec, impl_must_match=True):
yield interpreter # Final filtering/matching using interpreter metadata
__all__ = [
"Pep514PythonInfo",
"propose_interpreters",
]
