seed_translation.py

from translate import Translator
import polib
import os
import sys

if len(sys.argv) > 1:
    language_code = sys.argv[1]
else:
    print("Usage seed_translation.py lang")
    print("  where lang is your two letteer ISO-639-1 language code")
    exit()

po_files_dir = './translated_po/%s' % language_code

files = os.listdir(po_files_dir)
translate_all = True

translator= Translator(to_lang=language_code)

for po_file_name in files:
    print("TRANSLATE %s" % po_file_name)
    po = polib.pofile(os.path.join(po_files_dir, po_file_name))
    for entry in po:
        if translate_all or entry.msgstr == '':
            print(entry.msgid)
            sentences = entry.msgid.split('.')
            translated_sentences = []
            for sentence in sentences:
                try:
                    translated_sentences.append(translator.translate(sentence))
                except:
                    print("ERROR TRANSLATING SENTENCE '%s'" % sentence)
            translation = '. '.join(translated_sentences)
            print(translation)
            print("-" * 40)
            entry.msgstr = translation.strip()
    po.save(os.path.join(po_files_dir, po_file_name))