Test encoding issues with regard to Py2 / Py3 compatibility

testencoding.py

# _*_ encoding: utf-8 _*_

import sys

pv = sys.version_info[0]
print("Python Version: {}".format(pv))

strngs = (('str_asci','asci'),
          ('uni_asci', u'asci'),
          ('byte_ascii', b'asci'),
          ('str_chin', '漢字'),
          ('uni_chin', u'漢字'),
          ('byte_chin', b'\xe6\xbc\xa2\xe5\xad\x97'),
          ('gibberish', b'\xff\xa6\xf5'))

print("Input:")
for k, v in strngs:
        print(k, v, type(v))
print('')

print("Treatments Old")
for k, v in strngs:
    try:
        v_to = v.encode('utf-8')
    except Exception as e:
        print('ENCODING ERROR OLD: ', (k, v))
        print(e)
    else:
        print(k, v_to, type(v_to))
print('')

print("Treatments New")
for k, v in strngs:
    try:        
        if sys.version_info[0] > 2:
            if type(v) == str:
                v_to = v                  # type(s) is PY3<str>
            else:
                v_to = v.decode('utf-8')  # type(s) is PY3<bytes> or illegal 
        elif type(v) == unicode:          
            v_to = v.encode('utf-8')      # It is PY2 :class:unicode
        else:
            v_to = v.decode('utf-8').encode('utf-8') #type(s) is PY2<str> or illegal
        print(k, v_to, type(v_to))
    except Exception as e:
        print('ENCODING ERROR NEW: ', (k, v))
        print(e)