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Lib/site-packages/virtualenv/util/path/_permission.py

@@ -0,0 +1,32 @@
+from __future__ import absolute_import, unicode_literals
+
+import os
+from stat import S_IXGRP, S_IXOTH, S_IXUSR
+
+from virtualenv.util.six import ensure_text
+
+
+def make_exe(filename):
+    original_mode = filename.stat().st_mode
+    levels = [S_IXUSR, S_IXGRP, S_IXOTH]
+    for at in range(len(levels), 0, -1):
+        try:
+            mode = original_mode
+            for level in levels[:at]:
+                mode |= level
+            filename.chmod(mode)
+            break
+        except OSError:
+            continue
+
+
+def set_tree(folder, stat):
+    for root, _, files in os.walk(ensure_text(str(folder))):
+        for filename in files:
+            os.chmod(os.path.join(root, filename), stat)
+
+
+__all__ = (
+    "make_exe",
+    "set_tree",
+)