adds pym unit

refinery/units/formats/pym.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from refinery.units import Unit
+
+import importlib
+import marshal
+
+
+class pym(Unit):
+    """
+    Converts Python-Marshaled code objects to the PYC (Python Bytecode) format. If it is an
+    older Python version, you can use the `refinery.pyc` unit to then decompile the code, but
+    for more recent versions a separate Python decompiler will be required.
+
+    WARNING: This unit will invoke the `marshal.loads` function, which may be unsafe. Please
+    refer to the official Python documentation for more details.
+    """
+
+    def process(self, data):
+        # https://stackoverflow.com/a/73454818
+        return importlib._bootstrap_external._code_to_timestamp_pyc(marshal.loads(data))