PyShell.py 文件源码

def runsource(self, source):
        "Extend base class method: Stuff the source in the line cache first"
        filename = self.stuffsource(source)
        self.more = 0
        self.save_warnings_filters = warnings.filters[:]
        warnings.filterwarnings(action="error", category=SyntaxWarning)
        # at the moment, InteractiveInterpreter expects str
        assert isinstance(source, str)
        #if isinstance(source, str):
        #    from idlelib import IOBinding
        #    try:
        #        source = source.encode(IOBinding.encoding)
        #    except UnicodeError:
        #        self.tkconsole.resetoutput()
        #        self.write("Unsupported characters in input\n")
        #        return
        try:
            # InteractiveInterpreter.runsource() calls its runcode() method,
            # which is overridden (see below)
            return InteractiveInterpreter.runsource(self, source, filename)
        finally:
            if self.save_warnings_filters is not None:
                warnings.filters[:] = self.save_warnings_filters
                self.save_warnings_filters = None