Globals/__init__.py

Mon, 22 Apr 2013 20:24:58 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Mon, 22 Apr 2013 20:24:58 +0200
changeset 2608
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parent 2302
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child 2614
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child 3163
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permissions
-rw-r--r--

Changed code to be compatible with latest PyQt4 Windows installers.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2006 - 2013 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module defining common data to be used by all modules.
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8 """
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9
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10 import sys
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11 import os
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12
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13 from PyQt4.QtCore import QDir
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14
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15 # names of the various settings objects
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16 settingsNameOrganization = "Eric5"
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17 settingsNameGlobal = "eric5"
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18 settingsNameRecent = "eric5recent"
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19
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20 # key names of the various recent entries
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21 recentNameMultiProject = "MultiProjects"
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22 recentNameProject = "Projects"
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23 recentNameFiles = "Files"
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24 recentNameHosts = "Hosts6"
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25
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26 configDir = None
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27
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28
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29 def isWindowsPlatform():
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30 """
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31 Function to check, if this is a Windows platform.
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32
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33 @return flag indicating Windows platform (boolean)
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34 """
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35 return sys.platform.startswith("win")
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36
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37
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38 def isMacPlatform():
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39 """
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40 Function to check, if this is a Mac platform.
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41
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42 @return flag indicating Mac platform (boolean)
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43 """
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44 return sys.platform == "darwin"
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45
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46
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47 def isLinuxPlatform():
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48 """
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49 Function to check, if this is a Linux platform.
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50
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51 @return flag indicating Linux platform (boolean)
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52 """
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53 return sys.platform.startswith("linux")
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54
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55
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56 def checkBlacklistedVersions():
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57 """
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58 Module functions to check for blacklisted versions of the prerequisites.
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59
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60 @return flag indicating good versions were found (boolean)
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61 """
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62 from install import BlackLists, PlatformsBlackLists
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63
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64 # determine the platform dependent black list
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65 if isWindowsPlatform():
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66 PlatformBlackLists = PlatformsBlackLists["windows"]
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67 elif isLinuxPlatform():
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68 PlatformBlackLists = PlatformsBlackLists["linux"]
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69 else:
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70 PlatformBlackLists = PlatformsBlackLists["mac"]
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71
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72 # check version of sip
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73 try:
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74 import sipconfig
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75 sipVersion = sipconfig.Configuration().sip_version_str
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76 # always assume, that snapshots are good
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77 if "snapshot" not in sipVersion:
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78 # check for blacklisted versions
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79 for vers in BlackLists["sip"] + PlatformBlackLists["sip"]:
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80 if vers == sipVersion:
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81 print('Sorry, sip version {0} is not compatible with eric5.'\
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82 .format(vers))
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83 print('Please install another version.')
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84 return False
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85 except ImportError:
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86 pass
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87
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88 # check version of PyQt
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89 from PyQt4.QtCore import PYQT_VERSION_STR
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90 pyqtVersion = PYQT_VERSION_STR
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91 # always assume, that snapshots are good
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92 if "snapshot" not in pyqtVersion:
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93 # check for blacklisted versions
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94 for vers in BlackLists["PyQt4"] + PlatformBlackLists["PyQt4"]:
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95 if vers == pyqtVersion:
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96 print('Sorry, PyQt4 version {0} is not compatible with eric5.'\
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97 .format(vers))
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98 print('Please install another version.')
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99 return False
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100
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101 # check version of QScintilla
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102 from PyQt4.Qsci import QSCINTILLA_VERSION_STR
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103 scintillaVersion = QSCINTILLA_VERSION_STR
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104 # always assume, that snapshots are new enough
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105 if "snapshot" not in scintillaVersion:
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106 # check for blacklisted versions
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107 for vers in BlackLists["QScintilla2"] + PlatformBlackLists["QScintilla2"]:
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108 if vers == scintillaVersion:
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109 print('Sorry, QScintilla2 version {0} is not compatible with eric5.'\
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110 .format(vers))
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111 print('Please install another version.')
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112 return False
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113
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114 return True
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115
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116
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117 def getConfigDir():
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118 """
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119 Module function to get the name of the directory storing the config data.
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120
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121 @return directory name of the config dir (string)
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122 """
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123 if configDir is not None and os.path.exists(configDir):
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124 hp = configDir
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125 else:
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126 if isWindowsPlatform():
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127 cdn = "_eric5"
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128 else:
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129 cdn = ".eric5"
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130
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131 hp = QDir.homePath()
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132 dn = QDir(hp)
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133 dn.mkdir(cdn)
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134 hp += "/" + cdn
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135 return QDir.toNativeSeparators(hp)
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136
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137
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138 def setConfigDir(d):
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139 """
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140 Module function to set the name of the directory storing the config data.
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141
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142 @param d name of an existing directory (string)
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143 """
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144 global configDir
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145 configDir = os.path.expanduser(d)
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146
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147
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148 def getPythonModulesDirectory():
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149 """
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150 Function to determine the path to Python's modules directory.
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151
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152 @return path to the Python modules directory (string)
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153 """
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154 import distutils.sysconfig
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155 return distutils.sysconfig.get_python_lib(True)
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156
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157
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158 ################################################################################
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159 ## functions for searching a Python2 interpreter
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160 ################################################################################
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161
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162
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163 def findPython2Interpreters():
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164 """
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165 Module function for searching a Python2 interpreter.
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166
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167 @return list of interpreters found (list of strings)
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168 """
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169 winPathList = ["C:\\Python25", "C:\\Python26", "C:\\Python27", "C:\\Python28"]
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170 posixPathList = ["/usr/bin", "/usr/local/bin"]
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171 posixVersionsList = ["2.5", "2.6", "2.7", "2.8"]
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172
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173 interpreters = []
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174 if isWindowsPlatform():
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175 # search the interpreters on Windows platforms
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176 for path in winPathList:
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177 exeList = [
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178 "python.exe",
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179 "python{0}.{1}.exe".format(path[-2], path[-1]),
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180 ]
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181 for exe in exeList:
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182 interpreter = os.path.join(path, exe)
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183 if os.path.isfile(interpreter):
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184 interpreters.append(interpreter)
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185 else:
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186 # search interpreters on Posix and Mac platforms
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187 for path in posixPathList:
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188 for version in posixVersionsList:
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189 interpreter = os.path.join(path, "python{0}".format(version))
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190 if os.path.isfile(interpreter):
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191 interpreters.append(interpreter)
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192
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193 return interpreters

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