import sys
if sys.version_info.major < 3:
    import unittest2 as unittest
else:
    import unittest

from evelink.thirdparty.six import PY2
if PY2:
    import unittest2 as unittest
else:
    import unittest

Use six for easy version info.
[PY3] Use six for easy version info.

- import sys
- if sys.version_info.major < 3:
+ from evelink.thirdparty.six import PY2
+ if PY2:
      import unittest2 as unittest
  else:
      import unittest
  
Use six for easy version info.
## Code Before:
import sys
if sys.version_info.major < 3:
    import unittest2 as unittest
else:
    import unittest

## Instruction:
Use six for easy version info.
## Code After:
from evelink.thirdparty.six import PY2
if PY2:
    import unittest2 as unittest
else:
    import unittest
