doc: contextual/plural translation requires oslo.i18n >=2.1.0
We introduced contextual/plural translation in version 2.1.0, so declare this in documentation to avoid AttributeError. Change-Id: Iadc24d19e2a2b799a5009a806ee7c64867b1d554 Related-Bug: #1525992
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@ -45,6 +45,9 @@ And recommend the following code to use plural form::
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The contextual form and plural form are used only when needed.
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By default, the translation should use the ``_()``.
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.. note::
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These two functions were only available in oslo.i18n >= 2.1.0.
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Log Translation
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===============
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@ -41,9 +41,11 @@ the marker functions the factory creates.
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_ = _translators.primary
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# The contextual translation function using the name "_C"
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# requires oslo.i18n >=2.1.0
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_C = _translators.contextual_form
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# The plural translation function using the name "_P"
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# requires oslo.i18n >=2.1.0
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_P = _translators.plural_form
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# Translators for log levels.
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