argparse-cs

Czech translation of the Python module argparse

Quick start

0. msgfmt argparse-cs.po -o locale/cs/LC_MESSAGES/argparse.mo
1. Follow the integration instructions below

Instructions

How to extract translation indices from argparse source: pygettext --default-domain=argparse /usr/local/lib/python3.5/argparse.py

How to merge the extracted indices into the existing dictionary: msgmerge argparse-cs.po argparse.pot -U

How to compile the dictionary: msgfmt argparse-cs.po -o locale/cs/LC_MESSAGES/argparse.mo

How to integrate the Czech translation in your project

All the methods I have found are invasive to some extent. Choose the one that does not interfere with the requirements of your project.

Override the global domain of gettext (recommended)

Call the following code before any text is output from argparse:

import gettext

# Set the following variables to suitable values
domain = 'argparse'
localedir = 'locale'

gettext.bindtextdomain(domain, localedir)
gettext.textdomain(domain)

The values domain and localedir must be set so that the .mo dictionary file is located at %(localedir)s/cs/LC_MESSAGES/%(domain)s.mo.

Override the function gettext.gettext

Before import argparse, call the following code:

import gettext
gettext.gettext = gettext.translation('argparse', localedir='locale', fallback=True).gettext

Source: http://stackoverflow.com/a/22951500/4054250

Replace the default dictionary file

Move the .mo dictionary file to %(default_localedir)s/cs/LC_MESSAGES/%(default_domain)s.mo, where default_domain = gettext.textdomain() and default_localedir = gettext.bindtextdomain(default_domain).