gh-132983: Add zstd version info to test.pythoninfo (#134230)

Co-authored-by: Victor Stinner <vstinner@python.org>

Author: StanFromIreland

Lib/test/pythoninfo.py

@@ -658,6 +658,16 @@ def collect_zlib(info_add):
     copy_attributes(info_add, zlib, 'zlib.%s', attributes)
 
 
+def collect_zstd(info_add):
+    try:
+        import _zstd
+    except ImportError:
+        return
+
+    attributes = ('zstd_version',)
+    copy_attributes(info_add, _zstd, 'zstd.%s', attributes)
+
+
 def collect_expat(info_add):
     try:
         from xml.parsers import expat
@@ -1051,6 +1061,7 @@ def collect_info(info):
         collect_tkinter,
         collect_windows,
         collect_zlib,
+        collect_zstd,
         collect_libregrtest_utils,
 
         # Collecting from tests should be last as they have side effects.

Misc/NEWS.d/next/Library/2025-05-19-15-30-00.gh-issue-132983.asdsfs.rst

@@ -0,0 +1 @@
+Add :mod:`!compression.zstd` version information to ``test.pythoninfo``.