Add files via upload

Author: YuukaNekoUwU

pyarchivefile.py

@@ -9090,6 +9090,15 @@ def UncompressFileAlt(fp, formatspecs=__file_format_multi_dict__, filestart=0,
 
 def UncompressFile(infile, formatspecs=__file_format_multi_dict__, mode="rb",
                    filestart=0, use_mmap=False):
+
+    # If caller already gave us a FileLikeAdapter => honor it and return it.
+    if isinstance(fp, FileLikeAdapter):
+        try:
+            fp.write_through = True
+        except Exception:
+            pass
+        return fp
+
     """
     Opens a path, detects compression by header, and returns a FileLikeAdapter.
     If uncompressed and use_mmap=True, returns an mmap-backed reader.
@@ -9834,6 +9843,14 @@ def CompressOpenFile(outfile, compressionenable=True, compressionlevel=None,
     if outfile is None:
         return False
 
+    # If caller already gave us a FileLikeAdapter => honor it and return it.
+    if isinstance(fp, FileLikeAdapter):
+        try:
+            fp.write_through = True
+        except Exception:
+            pass
+        return fp
+
     fbasename, fextname = os.path.splitext(outfile)
     compressionlevel = 9 if compressionlevel is None else int(compressionlevel)
     mode = "w" if PY2 else "wb"