eric6/WebBrowser/WebBrowserLanguagesDialog.py

Sat, 27 Feb 2021 12:08:23 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 27 Feb 2021 12:08:23 +0100
changeset 8138
169e65a6787c
parent 7923
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child 8143
2c730d5fd177
permissions
-rw-r--r--

Shell: added functionality to show a prompt when the main client process has exited (e.g. a script ended).

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2009 - 2021 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 PyQt5.QtCore import pyqtSlot, QLocale, QStringListModel
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11 from PyQt5.QtWidgets import QDialog
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12
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13 from .Ui_WebBrowserLanguagesDialog import Ui_WebBrowserLanguagesDialog
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14
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15 import Preferences
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16
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17
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18 class WebBrowserLanguagesDialog(QDialog, Ui_WebBrowserLanguagesDialog):
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19 """
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20 Class implementing a dialog to configure the preferred languages.
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21 """
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22 def __init__(self, parent=None):
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23 """
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24 Constructor
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25
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26 @param parent reference to the parent widget (QWidget)
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27 """
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28 super(WebBrowserLanguagesDialog, self).__init__(parent)
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29 self.setupUi(self)
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30
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31 self.__model = QStringListModel()
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32 self.languagesList.setModel(self.__model)
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33 self.languagesList.selectionModel().currentChanged.connect(
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34 self.__currentChanged)
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35
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36 languages = Preferences.toList(Preferences.Prefs.settings.value(
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37 "WebBrowser/AcceptLanguages", self.defaultAcceptLanguages()))
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38 self.__model.setStringList(languages)
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39
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40 allLanguages = []
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41 for index in range(QLocale.C + 1, QLocale.LastLanguage + 1):
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42 allLanguages += self.expand(QLocale.Language(index))
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43 self.__allLanguagesModel = QStringListModel()
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44 self.__allLanguagesModel.setStringList(allLanguages)
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45 self.addCombo.setModel(self.__allLanguagesModel)
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46
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47 def __currentChanged(self, current, previous):
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48 """
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49 Private slot to handle a change of the current selection.
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50
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51 @param current index of the currently selected item (QModelIndex)
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52 @param previous index of the previously selected item (QModelIndex)
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53 """
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54 self.removeButton.setEnabled(current.isValid())
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55 row = current.row()
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56 self.upButton.setEnabled(row > 0)
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57 self.downButton.setEnabled(
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58 row != -1 and row < self.__model.rowCount() - 1)
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59
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60 @pyqtSlot()
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61 def on_upButton_clicked(self):
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62 """
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63 Private slot to move a language up.
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64 """
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65 currentRow = self.languagesList.currentIndex().row()
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66 data = self.languagesList.currentIndex().data()
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67 self.__model.removeRow(currentRow)
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68 self.__model.insertRow(currentRow - 1)
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69 self.__model.setData(self.__model.index(currentRow - 1), data)
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70 self.languagesList.setCurrentIndex(self.__model.index(currentRow - 1))
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71
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72 @pyqtSlot()
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73 def on_downButton_clicked(self):
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74 """
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75 Private slot to move a language down.
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76 """
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77 currentRow = self.languagesList.currentIndex().row()
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78 data = self.languagesList.currentIndex().data()
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79 self.__model.removeRow(currentRow)
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80 self.__model.insertRow(currentRow + 1)
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81 self.__model.setData(self.__model.index(currentRow + 1), data)
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82 self.languagesList.setCurrentIndex(self.__model.index(currentRow + 1))
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83
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84 @pyqtSlot()
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85 def on_removeButton_clicked(self):
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86 """
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87 Private slot to remove a language from the list of acceptable
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88 languages.
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89 """
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90 currentRow = self.languagesList.currentIndex().row()
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91 self.__model.removeRow(currentRow)
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92
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93 @pyqtSlot()
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94 def on_addButton_clicked(self):
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95 """
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96 Private slot to add a language to the list of acceptable languages.
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97 """
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98 language = self.addCombo.currentText()
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99 if language in self.__model.stringList():
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100 return
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101
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102 self.__model.insertRow(self.__model.rowCount())
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103 self.__model.setData(self.__model.index(self.__model.rowCount() - 1),
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104 language)
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105 self.languagesList.setCurrentIndex(
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106 self.__model.index(self.__model.rowCount() - 1))
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107
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108 def accept(self):
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109 """
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110 Public method to accept the data entered.
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111 """
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112 result = self.__model.stringList()
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113 if result == self.defaultAcceptLanguages():
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114 Preferences.Prefs.settings.remove("WebBrowser/AcceptLanguages")
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115 else:
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116 Preferences.Prefs.settings.setValue(
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117 "WebBrowser/AcceptLanguages", result)
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118 super(WebBrowserLanguagesDialog, self).accept()
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119
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120 @classmethod
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121 def httpString(cls, languages):
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122 """
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123 Class method to convert a list of acceptable languages into a
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124 byte array.
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125
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126 The byte array can be sent along with the Accept-Language http header
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127 (see RFC 2616).
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128
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129 @param languages list of acceptable languages (list of strings)
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130 @return converted list (QByteArray)
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131 """
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132 processed = []
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133 qvalue = 1.0
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134 for language in languages:
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135 leftBracket = language.find('[')
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136 rightBracket = language.find(']')
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137 tag = language[leftBracket + 1:rightBracket]
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138 if not processed:
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139 processed.append(tag)
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140 else:
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141 processed.append("{0};q={1:.1f}".format(tag, qvalue))
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142 if qvalue > 0.1:
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143 qvalue -= 0.1
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144
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145 return ", ".join(processed)
0
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146
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147 @classmethod
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148 def defaultAcceptLanguages(cls):
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149 """
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150 Class method to get the list of default accept languages.
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151
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152 @return list of acceptable languages (list of strings)
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153 """
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154 language = QLocale.system().name()
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155 if not language:
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156 return []
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157 else:
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158 return cls.expand(QLocale(language).language())
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159
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160 @classmethod
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161 def expand(cls, language):
0
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162 """
3591
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163 Class method to expand a language enum to a readable languages
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164 list.
0
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165
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166 @param language language number (QLocale.Language)
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167 @return list of expanded language names (list of strings)
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168 """
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169 allLanguages = []
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170 countries = [loc.country() for loc in QLocale.matchingLocales(
3658
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171 language, QLocale.AnyScript, QLocale.AnyCountry)]
7271
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172 languageString = (
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173 "{0} [{1}]"
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174 ).format(
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175 QLocale.languageToString(language),
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176 QLocale(language).name().split('_')[0]
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177 )
0
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178 allLanguages.append(languageString)
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179 for country in countries:
7271
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180 languageString = (
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181 "{0}/{1} [{2}]"
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182 ).format(
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183 QLocale.languageToString(language),
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184 QLocale.countryToString(country),
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185 '-'.join(QLocale(language, country).name().split('_')).lower()
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186 )
0
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187 if languageString not in allLanguages:
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188 allLanguages.append(languageString)
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189
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190 return allLanguages

eric ide

mercurial