init

.venv/lib/python3.8/site-packages/virtualenv/util/zipapp.py

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+from __future__ import absolute_import, unicode_literals
+
+import logging
+import os
+import zipfile
+
+from virtualenv.info import IS_WIN, ROOT
+from virtualenv.util.six import ensure_text
+
+
+def read(full_path):
+    sub_file = _get_path_within_zip(full_path)
+    with zipfile.ZipFile(ROOT, "r") as zip_file:
+        with zip_file.open(sub_file) as file_handler:
+            return file_handler.read().decode("utf-8")
+
+
+def extract(full_path, dest):
+    logging.debug("extract %s to %s", full_path, dest)
+    sub_file = _get_path_within_zip(full_path)
+    with zipfile.ZipFile(ROOT, "r") as zip_file:
+        info = zip_file.getinfo(sub_file)
+        info.filename = dest.name
+        zip_file.extract(info, ensure_text(str(dest.parent)))
+
+
+def _get_path_within_zip(full_path):
+    full_path = os.path.abspath(str(full_path))
+    sub_file = full_path[len(ROOT) + 1 :]
+    if IS_WIN:
+        # paths are always UNIX separators, even on Windows, though __file__ still follows platform default
+        sub_file = sub_file.replace(os.sep, "/")
+    return sub_file