gh-104527: zippapp will now avoid appending an archive to itself. (gh-106076)

zippapp will now avoid appending an archive to itself.

Author: gabevenberg

Lib/zipapp.py

@@ -138,7 +138,7 @@ def create_archive(source, target=None, interpreter=None, main=None,
         with zipfile.ZipFile(fd, 'w', compression=compression) as z:
             for child in sorted(source.rglob('*')):
                 arcname = child.relative_to(source)
-                if filter is None or filter(arcname):
+                if filter is None or filter(arcname) and child.resolve() != arcname.resolve():
                     z.write(child, arcname.as_posix())
             if main_py:
                 z.writestr('__main__.py', main_py.encode('utf-8'))

Misc/NEWS.d/next/Library/2023-06-25-06-57-24.gh-issue-104527.TJEUkd.rst

@@ -0,0 +1 @@
+Zipapp will now skip over apending an archive to itself.