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from __future__ import absolute_import

from __future__ import unicode_literals

from ctypes import POINTER

from ctypes import windll

from ctypes import WinError

from ctypes import WINFUNCTYPE

from ctypes.wintypes import BOOL

from ctypes.wintypes import DWORD

from ctypes.wintypes import HANDLE

STD_OUTPUT_HANDLE = -11

ENABLE_VIRTUAL_TERMINAL_PROCESSING = 4

def bool_errcheck(result, func, args):

if not result:

raise WinError()

return args

GetStdHandle = WINFUNCTYPE(HANDLE, DWORD)(

('GetStdHandle', windll.kernel32), ((1, 'nStdHandle'),),

)

GetConsoleMode = WINFUNCTYPE(BOOL, HANDLE, POINTER(DWORD))(

('GetConsoleMode', windll.kernel32),

((1, 'hConsoleHandle'), (2, 'lpMode')),

)

GetConsoleMode.errcheck = bool_errcheck

SetConsoleMode = WINFUNCTYPE(BOOL, HANDLE, DWORD)(

('SetConsoleMode', windll.kernel32),

((1, 'hConsoleHandle'), (1, 'dwMode')),

)

SetConsoleMode.errcheck = bool_errcheck

def enable_virtual_terminal_processing():

"""As of Windows 10, the Windows console supports (some) ANSI escape

sequences, but it needs to be enabled using `SetConsoleMode` first.

More info on the escape sequences supported:

https://msdn.microsoft.com/en-us/library/windows/desktop/mt638032(v=vs.85).aspx

"""

stdout = GetStdHandle(STD_OUTPUT_HANDLE)

flags = GetConsoleMode(stdout)

SetConsoleMode(stdout, flags | ENABLE_VIRTUAL_TERMINAL_PROCESSING)

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