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annotate orpg/tools/decorators.py @ 99:a647e0e8f520 alpha

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Traipse Alpha 'OpenRPG' {090925-00} Traipse is a distribution of OpenRPG that is designed to be easy to setup and go. Traipse also makes it easy for developers to work on code without fear of sacrifice. 'Ornery-Orc' continues the trend of 'Grumpy' and adds fixes to the code. 'Ornery-Orc's main goal is to offer more advanced features and enhance the productivity of the user. Update Summary: 00: Update forwards to the 090909-02 Server code that now works. New default Lobby Map, designed for Traipse. Feel free to change it. Updates to Server GUI: * Admin can Ban from Backend. * Prework to modify Ban List in back end. * Server GUI finds your Lobby Name * New users default as Lurker unless a Role is set New Addition to Chat Die Roll commands. Math Ordering. Ex. [(X+Y)dZ]. Currently does pairs only, no nesting either. Cleaner TraipseSuiteAttention portability and clean up in Main (Beta!) 01: Die Roll Commands addition removed in favor of Core code {090925-00}: Updates to Server GUI: *Admin can Modify Ban List and Un Ban users. New About Dialog. A more uniform About Dialog. 01: Corrects image loading of duplicate images.
author sirebral
date Fri, 25 Sep 2009 20:37:54 -0500
parents 37a11fea3304
children
rev   line source
72
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1 import warnings
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2 import functools
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3
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4 from orpg.orpgCore import *
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5
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6 def deprecated(msg=None):
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7 """
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8 This is a decorator which can be used to mark functions
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9 as deprecated. It will result in a warning being emitted
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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10 when the function is used.
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11 """
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12 def wrap(func):
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13 @functools.wraps(func)
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14 def new_func(*args, **kwargs):
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15 out = msg
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16 if not out:
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17 out = "Call to deprecated function %s."
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18 else:
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19 out = "Call to deprecated function %s.\n" + out
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20
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21 warnings.warn_explicit(
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22 out % (func.__name__),
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23 category=DeprecationWarning,
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24 filename=func.func_code.co_filename,
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25 lineno=func.func_code.co_firstlineno + 1
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26 )
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27 return func(*args, **kwargs)
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28 return new_func
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29 return wrap
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30
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31 def pending_deprecation(msg=None):
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32 """
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33 This is a decorator which can be used to mark functions
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34 as deprecated. It will result in a warning being emitted
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35 when the function is used.
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36 """
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37 def wrap(func):
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38 @functools.wraps(func)
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39 def new_func(*args, **kwargs):
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40 out = msg
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41 if not out:
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42 out = "%s is Pending Deprecation."
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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43 else:
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44 out = "%s is Pending Deprecation.\n" + out
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45
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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46 warnings.warn_explicit(
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47 out % (func.__name__),
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48 category=PendingDeprecationWarning,
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49 filename=func.func_code.co_filename,
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50 lineno=func.func_code.co_firstlineno + 1
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51 )
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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52 return func(*args, **kwargs)
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53 return new_func
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54 return wrap
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55
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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56 def synchronized(lock):
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57 """
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58 Synchronization decorator.
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59 """
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60
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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61 @functools.wraps(func)
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62 def new_func(*args, **kwargs):
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63 lock.acquire()
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64 try:
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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65 return func(*args, **kwargs)
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66 finally:
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67 lock.release()
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68 return new_func
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69
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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70 class memoized(object):
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71 """
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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72 Decorator that caches a function's return value each time it is called.
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73 If called later with the same arguments, the cached value is returned, and
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74 not re-evaluated.
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75 """
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76 def __init__(self, func):
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77 self.func = func
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78 self.cache = {}
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79
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80 def __call__(self, *args, **kwargs):
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81 try:
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82 return self.cache[args + kwargs.values()]
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83 except KeyError:
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84 self.cache[args] = value = self.func(*args, **kwargs)
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85 return value
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86 except TypeError:
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87 # uncachable -- for instance, passing a list as an argument.
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88 # Better to not cache than to blow up entirely.
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89 return self.func(*args)
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90 def __repr__(self):
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91 """
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92 Return the function's docstring.
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93 """
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94 return self.func.__doc__
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95
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96 def debugging(func):
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97 """
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98 Decorator to print Enter/Exit debugging info
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99 """
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100
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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101 @functools.wraps(func)
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102 def new_func(*args, **kwargs):
76
37a11fea3304 More clean up. Images now posts a Chat Info post if image doesn't load.
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103 from orpg_log import logger
72
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104
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105 if not ORPG_DEBUG & logger.log_level:
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106 return func(*args, **kwargs)
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107
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108 if str(args[0].__class__).startswith('<class'):
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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109 cls = args[0].__class__.__name__
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110 args_s = "self"
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111 if len(args) > 1:
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112 args_s += ', ' + ', '.join([str(attr) for attr in args[1:]])
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113 kwargs_s = ""
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114 for k,v in kwargs.iteritems():
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115 kwargs_s += ', ' + k + '=' + str(v)
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116
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117 call_str = '%(cls)s->%(fnc)s(%(args)s%(kwargs)s)' % {
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118 'cls':cls,
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119 'fnc':func.__name__,
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120 'args':args_s,
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121 'kwargs':kwargs_s}
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122 try:
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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123 logger.debug("Enter " + call_str)
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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124 return func(*args, **kwargs)
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125 finally:
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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126 logger.debug("Exit " + call_str)
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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127 else:
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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128 try:
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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129 logger.debug("Enter " + func.__name__)
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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130 return func(*args, **kwargs)
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131 finally:
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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132 logger.debug("Exit " + func.__name__)
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133 return new_func
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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134
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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135 """
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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136 Cannot use this decorator till we stop supporting py2.5
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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137 as class decorators did not land till py2.6 I am just adding it here
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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138 So when we do we can convert all singleton classes to use it
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139 """
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140 def singleton(cls):
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141 instances = {}
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142 def getinstance():
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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143 if cls not in instances:
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144 instances[cls] = cls()
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145 return instances[cls]
8bc955faf819 Fixing a few mistakes from the last update. When Controls is finished I will be happy because users won't miss an file change due to these small updates.
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146 return getinstance