Method write_file

IPython/extensions/tests/test_deduperreload.py:761–781

Write a file, and force a timestamp difference of at least one second Notes ----- Python's .pyc files record the timestamp of their compilation with a time resolution of one second. Therefore, we need to force a timestamp difference between .py

(self, filename, content)

        return module_name, file_name

    def write_file(self, filename, content):
        """
        Write a file, and force a timestamp difference of at least one second

        Notes
        -----
        Python's .pyc files record the timestamp of their compilation
        with a time resolution of one second.

        Therefore, we need to force a timestamp difference between .py
        and .pyc, without having the .py file be timestamped in the
        future, and without changing the timestamp of the .pyc file
        (because that is stored in the file). The only reliable way
        to achieve this seems to be to sleep.

        Doesn't seem necessary on Darwin so we make this the exception.
        """
        if platform.system().lower() != "darwin":
            time.sleep(1.05)
        with open(filename, "w", encoding="utf-8") as f:
            f.write(squish_text(content))

    def new_module(self, code):
        mod_name, mod_fn = self.get_module()