Don't support Chinese character in the file path

The path of my original file contains Chinese characters, and the intermediate files do not contain. First, it failed during pegasus-transfer process. "UnicodeEncodeError: 'ascii' codec can't encode characters in position 47-49: ordinal not in range(128)". So in the file /usr/bin/pegasus-transfer, I change all "get_src_path()" into "get_src_path().encode('utf-8')". And it worked successfully, then failed in pegasus-monitord job. Again the problem is " UnicodeEncodeError: 'ascii' codec can't encode characters in position 890-898: ordinal not in range(128)"
 22 Traceback (most recent call last):
 23 File "/usr/bin/pegasus-monitord", line 1259, in <module>
 24 process_output = process_dagman_out(workflow_entry.wf, workflow_entry.ml_buffer[0:ml_pos])
 25 File "/usr/bin/pegasus-monitord", line 702, in process_dagman_out
 26 add(wf, my_jobid, "%s_SCRIPT_FAILURE" % (my_script), status=my_exit_code)
 27 File "/usr/bin/pegasus-monitord", line 551, in add
 28 wf.update_job_state(jobid, sched_id, my_job_submit_seq, event, status, my_time, reason)

So, how can I change this files to make it possible to use Chinese characters in the file path?