From 6919427e9462d05f402faa5f846f43e08347cebe Mon Sep 17 00:00:00 2001 From: Brett Cannon Date: Mon, 20 Jul 2009 04:23:48 +0000 Subject: Implement the PEP 302 protocol for get_filename() as importlib.abc.ExecutionLoader. PyLoader now inherits from this ABC instead of InspectLoader directly. Both PyLoader and PyPycLoader provide concrete implementations of get_filename in terms of source_path and bytecode_path. --- Lib/importlib/abc.py | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'Lib/importlib/abc.py') diff --git a/Lib/importlib/abc.py b/Lib/importlib/abc.py index 7b89d0b4c9..c912280ff1 100644 --- a/Lib/importlib/abc.py +++ b/Lib/importlib/abc.py @@ -76,7 +76,23 @@ InspectLoader.register(machinery.BuiltinImporter) InspectLoader.register(machinery.FrozenImporter) -class PyLoader(_bootstrap.PyLoader, ResourceLoader, InspectLoader): +class ExecutionLoader(InspectLoader): + + """Abstract base class for loaders that wish to support the execution of + modules as scripts. + + This ABC represents one of the optional protocols specified in PEP 302. + + """ + + @abc.abstractmethod + def get_filename(self, fullname:str) -> str: + """Abstract method which should return the value that __file__ is to be + set to.""" + raise NotImplementedError + + +class PyLoader(_bootstrap.PyLoader, ResourceLoader, ExecutionLoader): """Abstract base class to assist in loading source code by requiring only back-end storage methods to be implemented. -- cgit v1.2.1