Error: unsupported locale setting

[Gfy]

Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/resample/srs.py", line 289, in main
tracks, attachments = sample.profile_sample(sample_file_data)
File "/usr/local/lib/python2.7/dist-packages/resample/main.py", line 569, in profile_sample
return mp4_profile_sample(self, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/resample/main.py", line 1257, in mp4_profile_sample
print(" {0:>13} {1:08X}\n".format(sep(mp4_data.size),
File "/usr/local/lib/python2.7/dist-packages/rescene/utility.py", line 357, in sep
locale.setlocale(locale.LC_ALL, loc)
File "/usr/lib/python2.7/locale.py", line 539, in setlocale
return _setlocale(category, locale)
Error: unsupported locale setting
Unexpected Error:
unsupported locale setting