diff --git a/Misc/NEWS.d/next/Library/2026-06-03-19-35-32.gh-issue-150583.dedI24.rst b/Misc/NEWS.d/next/Library/2026-06-03-19-35-32.gh-issue-150583.dedI24.rst new file mode 100644 index 00000000000000..7579a0a0b9421e --- /dev/null +++ b/Misc/NEWS.d/next/Library/2026-06-03-19-35-32.gh-issue-150583.dedI24.rst @@ -0,0 +1,2 @@ +Fix compression level in :mod:`compression.zstd` when passing a digested +dictionary during compression. diff --git a/Modules/_zstd/compressor.c b/Modules/_zstd/compressor.c index b2eb22d9ec8add..894568fce28d0d 100644 --- a/Modules/_zstd/compressor.c +++ b/Modules/_zstd/compressor.c @@ -347,6 +347,7 @@ _zstd_ZstdCompressor_new_impl(PyTypeObject *type, PyObject *level, } self->use_multithread = 0; + self->compression_level = ZSTD_CLEVEL_DEFAULT; self->dict = NULL; self->lock = (PyMutex){0};