import re
s='/mnt/d/datat/ssome_part - Copy/s14_060319m.set.zip'
match = re.search(r'(\w+)_(\w+)[^/]*$', s)
if match is not None:
print(match.group(1))
print(match.group(2))
aW1wb3J0IHJlCnM9Jy9tbnQvZC9kYXRhdC9zc29tZV9wYXJ0IC0gQ29weS9zMTRfMDYwMzE5bS5zZXQuemlwJwptYXRjaCA9IHJlLnNlYXJjaChyJyhcdyspXyhcdyspW14vXSokJywgcykKaWYgbWF0Y2ggaXMgbm90IE5vbmU6CglwcmludChtYXRjaC5ncm91cCgxKSkKCXByaW50KG1hdGNoLmdyb3VwKDIpKQ==