<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _dos2unix_cygwin(self, file_path):
 """ Use cygwin to convert file to unix format """

        dos2unix_cmd = \
            [os.path.join(self._cygwin_bin_location, "dos2unix.exe"),
             self._get_cygwin_path(file_path)]
        process = Popen(dos2unix_cmd,
                        stdout=PIPE, stderr=PIPE, shell=False)
        process.communicate()