eric6/WebBrowser/WebBrowserLanguagesDialog.py

Sun, 14 Apr 2019 15:09:21 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sun, 14 Apr 2019 15:09:21 +0200
changeset 6942
2602857055c5
parent 6645
WebBrowser/WebBrowserLanguagesDialog.py@ad476851d7e0
child 7229
53054eb5b15a
permissions
-rw-r--r--

Major restructuring of the source tree to get prepared for a setup.py based installation.

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1 # -*- coding: utf-8 -*-
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2
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ad476851d7e0 Updated copyright for 2019.
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3 # Copyright (c) 2009 - 2019 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 implementing a dialog to configure the preferred languages.
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8 """
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9
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10 from __future__ import unicode_literals
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11
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12 from PyQt5.QtCore import pyqtSlot, QLocale, QStringListModel
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13 from PyQt5.QtWidgets import QDialog
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14
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15 from .Ui_WebBrowserLanguagesDialog import Ui_WebBrowserLanguagesDialog
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16
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17 import Preferences
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18
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19
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20 class WebBrowserLanguagesDialog(QDialog, Ui_WebBrowserLanguagesDialog):
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21 """
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22 Class implementing a dialog to configure the preferred languages.
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23 """
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24 def __init__(self, parent=None):
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25 """
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26 Constructor
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27
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28 @param parent reference to the parent widget (QWidget)
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29 """
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30 super(WebBrowserLanguagesDialog, self).__init__(parent)
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31 self.setupUi(self)
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32
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33 self.__model = QStringListModel()
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34 self.languagesList.setModel(self.__model)
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35 self.languagesList.selectionModel().currentChanged.connect(
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36 self.__currentChanged)
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37
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38 languages = Preferences.toList(Preferences.Prefs.settings.value(
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39 "WebBrowser/AcceptLanguages", self.defaultAcceptLanguages()))
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40 self.__model.setStringList(languages)
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41
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42 allLanguages = []
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43 for index in range(QLocale.C + 1, QLocale.LastLanguage + 1):
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44 allLanguages += self.expand(QLocale.Language(index))
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45 self.__allLanguagesModel = QStringListModel()
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46 self.__allLanguagesModel.setStringList(allLanguages)
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47 self.addCombo.setModel(self.__allLanguagesModel)
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48
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49 def __currentChanged(self, current, previous):
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50 """
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51 Private slot to handle a change of the current selection.
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52
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53 @param current index of the currently selected item (QModelIndex)
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54 @param previous index of the previously selected item (QModelIndex)
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55 """
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56 self.removeButton.setEnabled(current.isValid())
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57 row = current.row()
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58 self.upButton.setEnabled(row > 0)
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59 self.downButton.setEnabled(
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60 row != -1 and row < self.__model.rowCount() - 1)
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61
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62 @pyqtSlot()
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63 def on_upButton_clicked(self):
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64 """
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65 Private slot to move a language up.
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66 """
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67 currentRow = self.languagesList.currentIndex().row()
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68 data = self.languagesList.currentIndex().data()
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69 self.__model.removeRow(currentRow)
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70 self.__model.insertRow(currentRow - 1)
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71 self.__model.setData(self.__model.index(currentRow - 1), data)
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72 self.languagesList.setCurrentIndex(self.__model.index(currentRow - 1))
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73
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74 @pyqtSlot()
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75 def on_downButton_clicked(self):
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76 """
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77 Private slot to move a language down.
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78 """
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79 currentRow = self.languagesList.currentIndex().row()
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80 data = self.languagesList.currentIndex().data()
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81 self.__model.removeRow(currentRow)
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82 self.__model.insertRow(currentRow + 1)
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83 self.__model.setData(self.__model.index(currentRow + 1), data)
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84 self.languagesList.setCurrentIndex(self.__model.index(currentRow + 1))
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85
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86 @pyqtSlot()
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87 def on_removeButton_clicked(self):
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88 """
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89 Private slot to remove a language from the list of acceptable
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90 languages.
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91 """
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92 currentRow = self.languagesList.currentIndex().row()
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93 self.__model.removeRow(currentRow)
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94
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95 @pyqtSlot()
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96 def on_addButton_clicked(self):
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97 """
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98 Private slot to add a language to the list of acceptable languages.
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99 """
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100 language = self.addCombo.currentText()
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101 if language in self.__model.stringList():
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102 return
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103
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104 self.__model.insertRow(self.__model.rowCount())
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105 self.__model.setData(self.__model.index(self.__model.rowCount() - 1),
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106 language)
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107 self.languagesList.setCurrentIndex(
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108 self.__model.index(self.__model.rowCount() - 1))
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109
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110 def accept(self):
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111 """
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112 Public method to accept the data entered.
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113 """
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114 result = self.__model.stringList()
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115 if result == self.defaultAcceptLanguages():
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116 Preferences.Prefs.settings.remove("WebBrowser/AcceptLanguages")
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117 else:
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118 Preferences.Prefs.settings.setValue(
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119 "WebBrowser/AcceptLanguages", result)
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120 super(WebBrowserLanguagesDialog, self).accept()
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121
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122 @classmethod
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123 def httpString(cls, languages):
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124 """
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125 Class method to convert a list of acceptable languages into a
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126 byte array.
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127
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128 The byte array can be sent along with the Accept-Language http header
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129 (see RFC 2616).
0
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130
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131 @param languages list of acceptable languages (list of strings)
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132 @return converted list (QByteArray)
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133 """
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134 processed = []
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135 qvalue = 1.0
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136 for language in languages:
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137 leftBracket = language.find('[')
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138 rightBracket = language.find(']')
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139 tag = language[leftBracket + 1:rightBracket]
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140 if not processed:
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141 processed.append(tag)
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142 else:
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143 processed.append("{0};q={1:.1f}".format(tag, qvalue))
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144 if qvalue > 0.1:
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145 qvalue -= 0.1
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146
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147 return ", ".join(processed)
0
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148
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149 @classmethod
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150 def defaultAcceptLanguages(cls):
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151 """
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152 Class method to get the list of default accept languages.
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153
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154 @return list of acceptable languages (list of strings)
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155 """
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156 language = QLocale.system().name()
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157 if not language:
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158 return []
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159 else:
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160 return cls.expand(QLocale(language).language())
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161
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162 @classmethod
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163 def expand(cls, language):
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164 """
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165 Class method to expand a language enum to a readable languages
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166 list.
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167
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168 @param language language number (QLocale.Language)
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169 @return list of expanded language names (list of strings)
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170 """
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171 allLanguages = []
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172 countries = [l.country() for l in QLocale.matchingLocales(
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173 language, QLocale.AnyScript, QLocale.AnyCountry)]
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174 languageString = "{0} [{1}]"\
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175 .format(QLocale.languageToString(language),
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176 QLocale(language).name().split('_')[0])
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177 allLanguages.append(languageString)
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178 for country in countries:
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179 languageString = "{0}/{1} [{2}]"\
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180 .format(QLocale.languageToString(language),
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181 QLocale.countryToString(country),
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182 '-'.join(QLocale(language, country).name()
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183 .split('_')).lower())
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184 if languageString not in allLanguages:
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185 allLanguages.append(languageString)
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186
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187 return allLanguages

eric ide

mercurial