WIP --prefix

pex/common.py

@@ -47,6 +47,16 @@
 DETERMINISTIC_DATETIME_TIMESTAMP = (DETERMINISTIC_DATETIME - _UNIX_EPOCH).total_seconds()
 
 
+def find_site_packages(prefix_dir):
+    # type: (str) -> Optional[str]
+    """Return the absolute path to the site-packages directory of the given Python installation."""
+    for root, dirs, _ in os.walk(prefix_dir):
+        for d in dirs:
+            if "site-packages" == d:
+                return os.path.join(root, d)
+    return None
+
+
 def filter_pyc_dirs(dirs):
     # type: (Iterable[str]) -> Iterator[str]
     """Return an iterator over the input `dirs` filtering out Python bytecode cache directories."""

pex/finders.py

@@ -7,6 +7,7 @@
 import os
 
 from pex.common import is_python_script
+from pex.pep_376 import InstalledWheel
 from pex.third_party.pkg_resources import Distribution
 from pex.typing import TYPE_CHECKING, cast
 
@@ -27,7 +28,7 @@ def find(
         name,  # type: str
     ):
         # type: (...) -> Optional[DistributionScript]
-        script_path = os.path.join(dist.location, "bin", name)
+        script_path = InstalledWheel.load(dist.location).stashed_path("bin", name)
         return cls(dist=dist, path=script_path) if os.path.isfile(script_path) else None
 
     dist = attr.ib()  # type: Distribution