def install(h, pip, groups, save, save_dev, packages):
    """Install a pip or bower package."""
    if groups:
        groups = [text_type.strip(group) for group in groups.split(",")]
    else:
        groups = h.requirements.keys()

    if not packages:
        for group in groups:
            if group not in h.requirements:
                warning("{} not in requirements".format(group))
                continue
            install = (h.install_bower if group.startswith("bower")
                       else h.install_pip)
            for requirement in h.requirements[group]:
                install(str(requirement), save=False, save_dev=False)
    if pip:
        for package in packages:
            h.install_pip(package, save=save, save_dev=save_dev)
    else:
        for package in packages:
            h.install_bower(package, save=save, save_dev=save_dev)
def from_pyfile(self, filename: str, silent: bool = False) -> bool:
        """Updates the values in the config from a Python file.  This function
        behaves as if the file was imported as module with the
        :meth:`from_object` function.

        :param filename: the filename of the config.  This can either be an
                         absolute filename or a filename relative to the
                         root path.
        :param silent: set to ``True`` if you want silent failure for missing
                       files.

        .. versionadded:: 0.7
           `silent` parameter.
        """
        filename = os.path.join(self.root_path, filename)
        d = types.ModuleType("config")
        d.__file__ = filename
        try:
            with open(filename, mode="rb") as config_file:
                exec(compile(config_file.read(), filename, "exec"), d.__dict__)
        except OSError as e:
            if silent and e.errno in (errno.ENOENT, errno.EISDIR, errno.ENOTDIR):
                return False
            e.strerror = f"Unable to load configuration file ({e.strerror})"
            raise
        self.from_object(d)
        return True