pydoc.py 文件源码

def run(self, callback, key=None, completer=None, onerror=None):
        if key: key = lower(key)
        self.quit = False
        seen = {}

        for modname in sys.builtin_module_names:
            if modname != '__main__':
                seen[modname] = 1
                if key is None:
                    callback(None, modname, '')
                else:
                    desc = split(__import__(modname).__doc__ or '', '\n')[0]
                    if find(lower(modname + ' - ' + desc), key) >= 0:
                        callback(None, modname, desc)

        for importer, modname, ispkg in pkgutil.walk_packages(onerror=onerror):
            if self.quit:
                break
            if key is None:
                callback(None, modname, '')
            else:
                loader = importer.find_module(modname)
                if hasattr(loader,'get_source'):
                    import StringIO
                    desc = source_synopsis(
                        StringIO.StringIO(loader.get_source(modname))
                    ) or ''
                    if hasattr(loader,'get_filename'):
                        path = loader.get_filename(modname)
                    else:
                        path = None
                else:
                    module = loader.load_module(modname)
                    desc = (module.__doc__ or '').splitlines()[0]
                    path = getattr(module,'__file__',None)
                if find(lower(modname + ' - ' + desc), key) >= 0:
                    callback(path, modname, desc)

        if completer:
            completer()