1  # SPDX-License-Identifier: MIT
 2  #
 3  # Copyright (c) 2021 The Anvil Extras project team members listed at
 4  # https://github.com/anvilistas/anvil-extras/graphs/contributors
 5  #
 6  # This software is published at https://github.com/anvilistas/anvil-extras
 7  
 8  from functools import wraps
 9  
10  __version__ = "3.1.0"
11  
12  
13  def deprecated(msg=""):
14      def outer(fn):
15          # nonlocal not available
16          warned = [False]
17  
18          @wraps(fn)
19          def wrapper(*args, **kws):
20              if not warned[0]:
21                  warned[0] = True
22                  print("DeprecatedWarning:", msg)
23  
24              return fn(*args, **kws)
25  
26          return wrapper
27  
28      return outer