Add a benchmark based on python -m pprint

pyperformance/data-files/benchmarks/MANIFEST

@@ -18,6 +18,7 @@ django_template	<local>
 dulwich_log	<local>
 fannkuch	<local>
 float	<local>
+from_stdlib	<local>
 genshi	<local>
 go	<local>
 hexiom	<local>

pyperformance/data-files/benchmarks/bm_from_stdlib/pyproject.toml

@@ -0,0 +1,9 @@
+[project]
+name = "pyperformance_bm_from_stdlib"
+requires-python = ">=3.8"
+dependencies = ["pyperf"]
+urls = {repository = "https://github.com/python/pyperformance"}
+dynamic = ["version"]
+
+[tool.pyperformance]
+name = "from_stdlib"

pyperformance/data-files/benchmarks/bm_from_stdlib/run_benchmark.py

@@ -0,0 +1,24 @@
+"""Various benchmarks previously stored inside the Python stdlib.
+
+Ported here by Oleg Iarygin.
+"""
+
+import pyperf
+
+
+def benchmark_pprint(runner):
+    """Moved from `python -m pprint`."""
+    from pprint import PrettyPrinter
+    printable = [("string", (1, 2), [3, 4], {5: 6, 7: 8})] * 100_000
+    p = PrettyPrinter()
+
+    runner.bench_func('_safe_repr', p._safe_repr, printable, {}, None, 0)
+    runner.bench_func('pformat', p.pformat, printable)
+
+
+if __name__ == "__main__":
+    runner = pyperf.Runner()
+    cmd = runner.argparser
+
+    args = runner.parse_args()
+    benchmark_pprint(runner)