* allow and document calling of monkeypatch.undo() from a test * default to 'sys' on platforms there no 'os.dup' is available * use "compile" to perform "tryparsing" checks --HG-- branch : trunk
* allow and document calling of monkeypatch.undo() from a test * default to 'sys' on platforms there no 'os.dup' is available * use "compile" to perform "tryparsing" checks --HG-- branch : trunk