PEP8-compatible line continuation

line-continuation.py

if 1 == 1:
    pass
elif 1 == 1 or \
        1 == 2:  # backslash continuation is very ugly
    pass
elif (1 == 1 or  # parentheses work better
      1 == 2):
    pass
elif (1 == 1 or  # and they look best with 8 spaces
        1 == 2):
    pass
elif 1 == 1 or 1 == 2:  # but the best thing to do: ignore length limit
    # (Add E501 to ignore list now!)
    pass

# with statements need this though if you limit line length:
with open('/path/to/some/file/you/want/to/read') as file_1, \
     open('/path/to/some/file/being/written', 'w') as file_2:
    file_2.write(file_1.read())