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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def save(self, path=None, debug=False):
 """Save project to file. :param path: Path or file pointer. If you pass a file pointer, you're responsible for closing it. If path is not given, the :attr:`path` attribute is used, usually the original path given to :attr:`load()`. If `path` has the extension of an existing plugin, the project will be converted using :attr:`convert`. Otherwise, the extension will be replaced with the extension of the current plugin. (Note that log output for the conversion will be printed to stdout. If you want to deal with the output, call :attr:`convert` directly.) If the path ends in a folder instead of a file, the filename is based on the project's :attr:`name`. :param debug: If true, return debugging information from the format plugin instead of the path. :raises: :py:class:`ValueError` if there's no path or name. :returns: path to the saved file. """


        p = self.copy()
        plugin = p._plugin

        # require path
        p.path = path or self.path
        if not p.path:
            raise ValueError, "path is required"

        if isinstance(p.path, basestring):
            # split path
            (folder, filename) = os.path.split(p.path)
            (name, extension) = os.path.splitext(filename)

            # get plugin from extension
            if path: # only if not using self.path
                try:
                    plugin = kurt.plugin.Kurt.get_plugin(extension=extension)
                except ValueError:
                    pass

            # build output path
            if not name:
                name = _clean_filename(self.name)
                if not name:
                    raise ValueError, "name is required"
            filename = name + plugin.extension
            p.path = os.path.join(folder, filename)

            # open
            fp = open(p.path, "wb")
        else:
            fp = p.path
            path = None

        if not plugin:
            raise ValueError, "must convert project to a format before saving"

        for m in p.convert(plugin):
            print m
        result = p._save(fp)
        if path:
            fp.close()
        return result if debug else p.path