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annotate roundup/i18n.py @ 5973:fe334430ca07

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issue2550919 - Anti-bot signup using 4 second delay Took the code by erik forsberg and massaged it into the core. So this is no longer needed in the tracker. Updated devel and responsive trackers to remove timestamp.py and update input field name. Docs, changes and tests complete. Hopefully these tracker changes won't cause an issue for other tests.
author John Rouillard <rouilj@ieee.org>
date Sat, 09 Nov 2019 00:30:37 -0500
parents bb364082a14a
children 289cee42cc19
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1 #
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2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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3 # This module is free software, and you may redistribute it and/or modify
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4 # under the same terms as Python, so long as this copyright message and
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5 # disclaimer are retained in their original form.
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6 #
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7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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10 # POSSIBILITY OF SUCH DAMAGE.
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11 #
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12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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17 #
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18 """
399
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19 RoundUp Internationalization (I18N)
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20
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21 To use this module, the following code should be used::
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22
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23 from roundup.i18n import _
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24 ...
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25 print _("Some text that can be translated")
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26
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27 Note that to enable re-ordering of inserted texts in formatting strings
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28 (which can easily happen if a sentence has to be re-ordered due to
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29 grammatical changes), translatable formats should use named format specs::
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31 ... _('Index of %(classname)s') % {'classname': cn} ...
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32
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33 Also, this eases the job of translators since they have some context what
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34 the dynamic portion of a message really means.
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35 """
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36 __docformat__ = 'restructuredtext'
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37
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38 import errno
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39 import gettext as gettext_module
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40 import os
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41
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42 from roundup import msgfmt
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43 from roundup.anypy.strings import is_us
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44
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45 # List of directories for mo file search (see SF bug 1219689)
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46 LOCALE_DIRS = [
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47 gettext_module._default_localedir,
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48 ]
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49 # compute mo location relative to roundup installation directory
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50 # (prefix/lib/python/site-packages/roundup/msgfmt.py on posix systems,
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51 # prefix/lib/site-packages/roundup/msgfmt.py on windows).
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52 # locale root is prefix/share/locale.
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53 if os.name == "nt":
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54 _mo_path = [".."] * 4 + ["share", "locale"]
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55 else:
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56 _mo_path = [".."] * 5 + ["share", "locale"]
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57 _mo_path = os.path.normpath(os.path.join(msgfmt.__file__, *_mo_path))
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58 if _mo_path not in LOCALE_DIRS:
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59 LOCALE_DIRS.append(_mo_path)
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60 del _mo_path
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61
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62 # Roundup text domain
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63 DOMAIN = "roundup"
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64
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65 RoundupNullTranslations = gettext_module.NullTranslations
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66 RoundupTranslations = gettext_module.GNUTranslations
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67
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68 def find_locales(language=None):
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69 """Return normalized list of locale names to try for given language
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70
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71 Argument 'language' may be a single language code or a list of codes.
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72 If 'language' is omitted or None, use locale settings in OS environment.
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73
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74 """
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75 # body of this function is borrowed from gettext_module.find()
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76 if language is None:
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77 languages = []
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78 for envar in ('LANGUAGE', 'LC_ALL', 'LC_MESSAGES', 'LANG'):
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79 val = os.environ.get(envar)
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80 if val:
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81 languages = val.split(':')
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82 break
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83 elif is_us(language):
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84 languages = [language]
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85 else:
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86 # 'language' must be iterable
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87 languages = language
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88 # now normalize and expand the languages
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89 nelangs = []
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90 for lang in languages:
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91 for nelang in gettext_module._expand_lang(lang):
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92 if nelang not in nelangs:
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93 nelangs.append(nelang)
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94 return nelangs
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95
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96 def get_mofile(languages, localedir, domain=None):
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97 """Return the first of .mo files found in localedir for languages
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98
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99 Parameters:
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100 languages:
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101 list of locale names to try
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102 localedir:
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103 path to directory containing locale files.
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104 Usually this is either gettext_module._default_localedir
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105 or 'locale' subdirectory in the tracker home.
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106 domain:
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107 optional name of messages domain.
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108 If omitted or None, work with simplified
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109 locale directory, as used in tracker homes:
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110 message catalogs are kept in files locale.po
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111 instead of locale/LC_MESSAGES/domain.po
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112
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113 Return the path of the first .mo file found.
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114 If nothing found, return None.
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115
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116 Automatically compile .po files if necessary.
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117
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118 """
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119 for locale in languages:
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120 if locale == "C":
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121 break
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122 if domain:
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123 basename = os.path.join(localedir, locale, "LC_MESSAGES", domain)
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124 else:
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125 basename = os.path.join(localedir, locale)
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126 # look for message catalog files, check timestamps
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127 mofile = basename + ".mo"
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128 if os.path.isfile(mofile):
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129 motime = os.path.getmtime(mofile)
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130 else:
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131 motime = 0
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132 pofile = basename + ".po"
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133 if os.path.isfile(pofile):
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134 potime = os.path.getmtime(pofile)
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135 else:
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136 potime = 0
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137 # see what we've found
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138 if motime < potime:
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139 # compile
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140 mo = msgfmt.Msgfmt(pofile).get()
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141 open(mofile, 'wb').write(mo)
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142 elif motime == 0:
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143 # no files found - proceed to the next locale name
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144 continue
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145 # .mo file found or made
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146 return mofile
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147 return None
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148
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149 def get_translation(language=None, tracker_home=None,
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150 translation_class=RoundupTranslations,
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151 null_translation_class=RoundupNullTranslations
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152 ):
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153 """Return Translation object for given language and domain
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154
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155 Argument 'language' may be a single language code or a list of codes.
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156 If 'language' is omitted or None, use locale settings in OS environment.
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157
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158 Arguments 'translation_class' and 'null_translation_class'
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159 specify the classes that are instantiated for existing
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160 and non-existing translations, respectively.
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161
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162 """
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163 mofiles = []
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164 # locale directory paths
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165 if tracker_home is None:
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166 tracker_locale = None
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167 else:
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168 tracker_locale = os.path.join(tracker_home, "locale")
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169 # get the list of locales
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170 locales = find_locales(language)
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171 # add mofiles found in the tracker, then in the system locale directory
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172 if tracker_locale:
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173 mofiles.append(get_mofile(locales, tracker_locale))
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174 for system_locale in LOCALE_DIRS:
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175 mofiles.append(get_mofile(locales, system_locale, DOMAIN))
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176 # we want to fall back to english unless english is selected language
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177 if "en" not in locales:
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178 locales = find_locales("en")
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179 # add mofiles found in the tracker, then in the system locale directory
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180 if tracker_locale:
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181 mofiles.append(get_mofile(locales, tracker_locale))
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182 for system_locale in LOCALE_DIRS:
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183 mofiles.append(get_mofile(locales, system_locale, DOMAIN))
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184 # filter out elements that are not found
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185 mofiles = filter(None, mofiles)
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186 translator = None
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187 for mofile in mofiles:
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188 try:
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189 mo = open(mofile, "rb")
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190 if translator is None:
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191 translator = translation_class(mo)
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192 else:
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193 # note: current implementation of gettext_module
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194 # always adds fallback to the end of the fallback chain.
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195 translator.add_fallback(translation_class(mo))
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196 except IOError:
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197 # ignore unreadable .mo files
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198 pass
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199 if translator is None:
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200 translator = null_translation_class()
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201 return translator
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202
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203 # static translations object
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204 translation = get_translation()
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205 # static translation functions
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206 _ = gettext = translation.gettext
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207 try:
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208 # Python 2.
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209 ugettext = translation.ugettext
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210 except AttributeError:
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211 # Python 3.
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212 ugettext = translation.gettext
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213 ngettext = translation.ngettext
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214 try:
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215 # Python 2.
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216 ungettext = translation.ungettext
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217 except AttributeError:
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218 # Python 3.
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219 ungettext = translation.ngettext
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220
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221 # vim: set filetype=python sts=4 sw=4 et si :
Roundup Issue Tracker: http://roundup-tracker.org/