Fix manifest

Sergey Dryabzhinsky · Sergey Dryabzhinsky · commit 2e517fa6b727 · 2021-05-19T08:12:21.000+03:00
diff --git a/MANIFEST.in b/MANIFEST.in
@@ -3,7 +3,7 @@ graft zstd/lib/common
 graft zstd/lib/compress
 graft zstd/lib/decompress
 graft zstd/lib/legacy
-graft tests
+graft tests/*.py
 include LICENSE
 include README.md
 include zstd/lib/zstd.h
