Python 3 和 Python 2 的主要区别:3

print('Python', python_version())
print('strings are now utf-8 \u03BCnico\u0394é!')

print('Python', python_version(), end="")
print(' has', type(b' bytes for storing data'))

print('and Python', python_version(), end="")
print(' also has', type(bytearray(b'bytearrays')))