old_contents: """
  source: https://github.com/tomchristie/django-rest-framework/blob/master/rest_framework/status.py
  Copyright (c) 2011-2015, Tom Christie All rights reserved.
  
  Descriptive HTTP status codes, for code readability.
  
  See RFC 2616 - http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
  And RFC 6585 - http://tools.ietf.org/html/rfc6585
  """
  from __future__ import unicode_literals
  
  
  def is_informational(code):
      return code >= 100 and code <= 199
  
  
  def is_success(code):
      return code >= 200 and code <= 299
  
  
  def is_redirect(code):
      return code >= 300 and code <= 399
  
  
  def is_client_error(code):
      return code >= 400 and code <= 499
  
  
  def is_server_error(code):
      return code >= 500 and code <= 599
  
  
  HTTP_100_CONTINUE = 100
  HTTP_101_SWITCHING_PROTOCOLS = 101
  HTTP_200_OK = 200
  HTTP_201_CREATED = 201
  HTTP_202_ACCEPTED = 202
  HTTP_203_NON_AUTHORITATIVE_INFORMATION = 203
  HTTP_204_NO_CONTENT = 204
  HTTP_205_RESET_CONTENT = 205
  HTTP_206_PARTIAL_CONTENT = 206
  HTTP_300_MULTIPLE_CHOICES = 300
  HTTP_301_MOVED_PERMANENTLY = 301
  HTTP_302_FOUND = 302
  HTTP_303_SEE_OTHER = 303
  HTTP_304_NOT_MODIFIED = 304
  HTTP_305_USE_PROXY = 305
  HTTP_306_RESERVED = 306
  HTTP_307_TEMPORARY_REDIRECT = 307
  HTTP_400_BAD_REQUEST = 400
  HTTP_401_UNAUTHORIZED = 401
  HTTP_402_PAYMENT_REQUIRED = 402
  HTTP_403_FORBIDDEN = 403
  HTTP_404_NOT_FOUND = 404
  HTTP_405_METHOD_NOT_ALLOWED = 405
  HTTP_406_NOT_ACCEPTABLE = 406
  HTTP_407_PROXY_AUTHENTICATION_REQUIRED = 407
  HTTP_408_REQUEST_TIMEOUT = 408
  HTTP_409_CONFLICT = 409
  HTTP_410_GONE = 410
  HTTP_411_LENGTH_REQUIRED = 411
  HTTP_412_PRECONDITION_FAILED = 412
  HTTP_413_REQUEST_ENTITY_TOO_LARGE = 413
  HTTP_414_REQUEST_URI_TOO_LONG = 414
  HTTP_415_UNSUPPORTED_MEDIA_TYPE = 415
  HTTP_416_REQUESTED_RANGE_NOT_SATISFIABLE = 416
  HTTP_417_EXPECTATION_FAILED = 417
  HTTP_418_I_AM_A_TEAPOT = 418
  HTTP_428_PRECONDITION_REQUIRED = 428
  HTTP_429_TOO_MANY_REQUESTS = 429
  HTTP_431_REQUEST_HEADER_FIELDS_TOO_LARGE = 431
  HTTP_500_INTERNAL_SERVER_ERROR = 500
  HTTP_501_NOT_IMPLEMENTED = 501
  HTTP_502_BAD_GATEWAY = 502
  HTTP_503_SERVICE_UNAVAILABLE = 503
  HTTP_504_GATEWAY_TIMEOUT = 504
  HTTP_505_HTTP_VERSION_NOT_SUPPORTED = 505
  HTTP_511_NETWORK_AUTHENTICATION_REQUIRED = 511
  
new_contents: """
  source: https://github.com/tomchristie/django-rest-framework/blob/master/rest_framework/status.py
  Copyright (c) 2011-2015, Tom Christie All rights reserved.
  
  Descriptive HTTP status codes, for code readability.
  
  See RFC 2616 - http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
  And RFC 6585 - http://tools.ietf.org/html/rfc6585
  """
  from __future__ import unicode_literals
  
  
  def is_informational(code):
      return code >= 100 and code <= 199
  
  
  def is_success(code):
      return code >= 200 and code <= 299
  
  
  def is_redirect(code):
      return code >= 300 and code <= 399
  
  
  def is_client_error(code):
      return code >= 400 and code <= 499
  
  
  def is_server_error(code):
      return code >= 500 and code <= 599
  
  
  HTTP_100_CONTINUE = 100
  HTTP_101_SWITCHING_PROTOCOLS = 101
  HTTP_200_OK = 200
  HTTP_201_CREATED = 201
  HTTP_202_ACCEPTED = 202
  HTTP_203_NON_AUTHORITATIVE_INFORMATION = 203
  HTTP_204_NO_CONTENT = 204
  HTTP_205_RESET_CONTENT = 205
  HTTP_206_PARTIAL_CONTENT = 206
  HTTP_300_MULTIPLE_CHOICES = 300
  HTTP_301_MOVED_PERMANENTLY = 301
  HTTP_302_FOUND = 302
  HTTP_303_SEE_OTHER = 303
  HTTP_304_NOT_MODIFIED = 304
  HTTP_305_USE_PROXY = 305
  HTTP_306_RESERVED = 306
  HTTP_307_TEMPORARY_REDIRECT = 307
  HTTP_400_BAD_REQUEST = 400
  HTTP_401_UNAUTHORIZED = 401
  HTTP_402_PAYMENT_REQUIRED = 402
  HTTP_403_FORBIDDEN = 403
  HTTP_404_NOT_FOUND = 404
  HTTP_405_METHOD_NOT_ALLOWED = 405
  HTTP_406_NOT_ACCEPTABLE = 406
  HTTP_407_PROXY_AUTHENTICATION_REQUIRED = 407
  HTTP_408_REQUEST_TIMEOUT = 408
  HTTP_409_CONFLICT = 409
  HTTP_410_GONE = 410
  HTTP_411_LENGTH_REQUIRED = 411
  HTTP_412_PRECONDITION_FAILED = 412
  HTTP_413_REQUEST_ENTITY_TOO_LARGE = 413
  HTTP_414_REQUEST_URI_TOO_LONG = 414
  HTTP_415_UNSUPPORTED_MEDIA_TYPE = 415
  HTTP_416_REQUESTED_RANGE_NOT_SATISFIABLE = 416
  HTTP_417_EXPECTATION_FAILED = 417
  HTTP_418_I_AM_A_TEAPOT = 418
  HTTP_422_UNPROCESSABLE_ENTITY = 422
  HTTP_428_PRECONDITION_REQUIRED = 428
  HTTP_429_TOO_MANY_REQUESTS = 429
  HTTP_431_REQUEST_HEADER_FIELDS_TOO_LARGE = 431
  HTTP_500_INTERNAL_SERVER_ERROR = 500
  HTTP_501_NOT_IMPLEMENTED = 501
  HTTP_502_BAD_GATEWAY = 502
  HTTP_503_SERVICE_UNAVAILABLE = 503
  HTTP_504_GATEWAY_TIMEOUT = 504
  HTTP_505_HTTP_VERSION_NOT_SUPPORTED = 505
  HTTP_511_NETWORK_AUTHENTICATION_REQUIRED = 511
  
subject: Update status.py