Python本地化例子 - gettext 模塊

1. 創建一個locsample.py文件，文件內容如下，把所有需要本地化的字符串放到_()里面。

# Python Localization Sample
import os, gettext

# Support localization
_ = None
def getUserLanguage():
    return "zh-CN"

# Get loc string by language
def getLocStrings():
    currentDir = os.path.dirname(os.path.realpath(__file__))
    return gettext.translation('resource', currentDir, [getUserLanguage(), "en-US"]).gettext 

_ = getLocStrings()
print(_("Hello"))

注意: 注意‘resource’是資源文件的名字，例如:'resource.mo'。getUserLanguage() 返回需要顯示的語言，"en-US"作為備份，如果找不到對應語言的資源文件，就使用"en-US"。

2.pygettext.py在python安裝目錄下 \Tools\i18n 文件夾里面。使用pygettext.py從py文件中提取所有被標記成需要本地化的字符串，也就是在_()里面的字符串。例如:
運行“python pygettext.py -o resource.pot locsample.py”生成resource.pot。

3. 把resource.pot改名為resource.po，為每種語言拷貝一份resource.po，zh-CN的resource.mo內容修改如下：

# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR ORGANIZATION
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"POT-Creation-Date: 2015-08-04 12:47+China Standard Time\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=utf-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Generated-By: pygettext.py 1.5\n"


#:
msgid "Hello"
msgstr "你好"

en-US的resource.mo內容如下：

# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR ORGANIZATION
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"POT-Creation-Date: 2015-08-04 12:47+China Standard Time\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=utf-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Generated-By: pygettext.py 1.5\n"


#:
msgid "Hello"
msgstr "Hello"

4. 為各種語言創建gettext可讀的.mo文件，使用msgfmt.py, 例如:

運行"python msgfmt.py -o resource.mo resource.po"生成resource.mo。mo文件是一個二進制文件。

5.把所有文件按照以下文件夾結構放置。

6. 運行locsample.py，輸出：

你好

代碼：

參考： https://docs.python.org/3/library/gettext.html

Python本地化例子 - gettext 模塊

免責聲明！