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author
Aaron Dorheim-Davis
committedSep 26, 2013
Part XIV: i18n and l10n
http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-xiv-i18n-and-l10n not completed. just did enough to understand the concept. Need to put the extract / update / compile scripts into a manage.py or something.
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-18
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‎microblog/app/__init__.py

+3
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@@ -4,6 +4,7 @@
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from flask.ext.login import LoginManager
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from flask.ext.openid import OpenID
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from flask.ext.mail import Mail
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from flask.ext.babel import Babel
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from config import basedir, ADMINS, MAIL_SERVER, MAIL_PORT, MAIL_USERNAME, MAIL_PASSWORD
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@@ -13,6 +14,8 @@
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mail = Mail(app)
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babel = Babel(app)
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lm = LoginManager()
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lm.init_app(app)
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lm.login_view = 'login'

‎microblog/app/templates/base.html

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@@ -14,7 +14,7 @@
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</head>
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<body>
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<div>Microblog:
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<a href="{{ url_for('index') }}">Home</a>
17+
<a href="{{ url_for('index') }}">{{ _('Home') }}</a>
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{% if g.user.is_authenticated() %}
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| <a href="{{ url_for('user', nickname = g.user.nickname ) }}">Your profile</a>
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| <a href="{{ url_for('logout') }} ">Logout</a>

‎microblog/app/templates/post.html

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@@ -1,6 +1,5 @@
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<div>
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<img src="{{post.author.avatar(50)}}">
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<em>{{post.author.nickname}} says: </em>
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<time datetime="{{post.timestamp}}">{{post.timestamp}}</time>
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{{ _('%(nickname)s said %(when)s', nickname = post.author.nickname, when = post.timestamp ) }}
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<p>{{post.body}}</p>
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<div>

‎microblog/app/translations/es/LC_MESSAGES/messages.po

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@@ -0,0 +1,76 @@
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# Spanish translations for PROJECT.
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# Copyright (C) 2013 ORGANIZATION
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# This file is distributed under the same license as the PROJECT project.
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# FIRST AUTHOR <EMAIL@ADDRESS>, 2013.
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#
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msgid ""
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msgstr ""
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"Project-Id-Version: PROJECT VERSION\n"
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"Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
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"POT-Creation-Date: 2013-09-26 14:10-0700\n"
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"PO-Revision-Date: 2013-09-26 14:18-0800\n"
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"Last-Translator: Aaron Dorheim-Davis <aaron.bdd@gmail.com>\n"
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"Language-Team: es <LL@li.org>\n"
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"Plural-Forms: nplurals=2; plural=(n != 1);\n"
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"MIME-Version: 1.0\n"
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"Content-Type: text/plain; charset=utf-8\n"
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"Content-Transfer-Encoding: 8bit\n"
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"Generated-By: Babel 1.3\n"
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"X-Generator: Poedit 1.5.7\n"
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#: app/views.py:32
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msgid "Your post is now live!"
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msgstr ""
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#: app/views.py:60
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msgid "Invalid login. Please try again"
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msgstr "Invalid login in spanish."
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#: app/views.py:102 app/views.py:139
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#, python-format
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msgid "User %(nickname)s not found."
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msgstr ""
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#: app/views.py:118
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msgid "Your changes have been saved"
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msgstr ""
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#: app/views.py:142
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msgid "You can't follow yourself!"
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msgstr ""
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#: app/views.py:146
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#, python-format
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msgid "Cannot follow %(nickname)s."
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msgstr ""
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#: app/views.py:150
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#, python-format
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msgid "You are now following %(nickname)s."
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msgstr ""
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#: app/views.py:158
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msgid "User %(nickname) not found."
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msgstr ""
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#: app/views.py:161
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msgid "You can't unfollow yourself!"
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msgstr ""
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#: app/views.py:165
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msgid "Cannot unfollow %(nickname)."
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msgstr ""
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#: app/views.py:169
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#, python-format
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msgid "You have stopped following %(nickname)s."
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msgstr ""
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#: app/templates/base.html:17
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msgid "Home"
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msgstr ""
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#: app/templates/post.html:3
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#, python-format
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msgid "%(nickname)s said %(when)s"
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msgstr "%(nickname)s said %(when)s in spanish"

‎microblog/app/views.py

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@@ -1,11 +1,13 @@
11
from flask import render_template, flash, redirect, session, url_for, request, g
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from flask.ext.login import login_user, logout_user, current_user, login_required
3-
from app import app, db, lm, oid
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from flask.ext.babel import gettext as _
4+
5+
from app import app, db, lm, oid, babel
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from forms import LoginForm, EditForm, PostForm, SearchForm
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from models import User, ROLE_USER, ROLE_ADMIN, Post
68
from datetime import datetime
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8-
from config import POSTS_PER_PAGE, MAX_SEARCH_RESULTS
10+
from config import POSTS_PER_PAGE, MAX_SEARCH_RESULTS, LANGUAGES
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from emails import follower_notification
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@app.before_request
@@ -27,7 +29,7 @@ def index(page = 1):
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post = Post(body=form.post.data, timestamp=datetime.utcnow(), author = g.user)
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db.session.add(post)
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db.session.commit()
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flash('Your post is now live!')
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flash(_('Your post is now live!'))
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return redirect(url_for('index'))
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posts = g.user.followed_posts().paginate(page, POSTS_PER_PAGE, False)
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return render_template("index.html",
@@ -55,7 +57,7 @@ def login():
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@oid.after_login
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def after_login(resp):
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if resp.identity_url is None or resp.identity_url == "":
58-
flash('Invalid login. Please try again')
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flash(_('Invalid login. Please try again'))
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return redirect(url_for('login'))
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user = User.query.filter_by(identity_url = resp.identity_url).first()
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if user is None:
@@ -97,7 +99,7 @@ def load_user(id):
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def user(nickname, page = 1):
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user = User.query.filter_by(nickname = nickname).first()
99101
if user == None:
100-
flash('User ' + nickname + ' not found.')
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flash(_('User %(nickname)s not found.', nickname = nickname))
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return redirect(url_for('index'))
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posts = user.posts.paginate(page, POSTS_PER_PAGE, False)
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return render_template('user.html',
@@ -113,7 +115,7 @@ def edit():
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g.user.about_me = form.about_me.data
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db.session.add(g.user)
115117
db.session.commit()
116-
flash('Your changes have been saved')
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flash(_('Your changes have been saved'))
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return redirect(url_for('edit'))
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else:
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form.nickname.data = g.user.nickname
@@ -134,37 +136,37 @@ def internal_error(error):
134136
def follow(nickname):
135137
user = User.query.filter_by(nickname = nickname).first()
136138
if user == None:
137-
flash('User' + nickname + ' not found.')
139+
flash(_('User %(nickname)s not found.', nickname = nickname))
138140
return redirect(url_for('index'))
139141
if user == g.user:
140-
flash('You can\'t follow yourself!')
142+
flash(_('You can\'t follow yourself!'))
141143
return redirect(url_for('user', nickname = nickname))
142144
u = g.user.follow(user)
143145
if u is None:
144-
flash('Cannot follow ' + nickname + '.')
146+
flash(_('Cannot follow %(nickname)s.', nickname = nickname))
145147
return redirect(url_for('user', nickname = nickname))
146148
db.session.add(u)
147149
db.session.commit()
148-
flash('You are now following ' + nickname + '.')
150+
flash(_('You are now following %(nickname)s.', nickname = nickname))
149151
follower_notification(user, g.user)
150152
return redirect(url_for('user', nickname = nickname))
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152154
@app.route('/unfollow/<nickname>')
153155
def unfollow(nickname):
154156
user = User.query.filter_by(nickname = nickname).first()
155157
if user == None:
156-
flash('User ' + nickname + ' not found.')
158+
flash(_('User %(nickname) not found.', nickname = nickname))
157159
return redirect(url_for('index'))
158160
if user == g.user:
159-
flash('You can\'t unfollow yourself!')
161+
flash(_('You can\'t unfollow yourself!'))
160162
return redirect(url_for('user', nickname = nickname))
161163
u = g.user.unfollow(user)
162164
if u is None:
163-
flash('Cannot unfollow ' + nickname + '.')
165+
flash(_('Cannot unfollow %(nickname).', nickname = nickname))
164166
return redirect(url_for('user', nickname = nickname))
165167
db.session.add(u)
166168
db.session.commit()
167-
flash('You have stopped following ' + nickname + '.')
169+
flash(_('You have stopped following %(nickname)s.', nickname = nickname))
168170
return redirect(url_for('user', nickname = nickname))
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170172
@app.route('/search', methods=['GET'])
@@ -175,3 +177,8 @@ def search():
175177
return render_template('search_results.html',
176178
query = query,
177179
results = results)
180+
181+
@babel.localeselector
182+
def get_locale():
183+
return 'es' #request.accept_languages.best_match(LANGUAGES.keys())
184+

‎microblog/babel.cfg

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[python: **.py]
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[jinja2: **/templates/**.html]
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extensions=jinja2.ext.autoescape,jinja2.ext.with_

‎microblog/config/__init__.py

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@@ -1,3 +1,5 @@
1+
# -*- coding: utf-8 -*-
2+
13
from email_config import MAIL_SERVER, MAIL_PORT, MAIL_USE_TLS, MAIL_USE_SSL, MAIL_USERNAME, MAIL_PASSWORD
24

35
# administrator list
@@ -24,3 +26,8 @@
2426

2527
WHOOSH_BASE = os.path.join(basedir, 'search.db')
2628
MAX_SEARCH_RESULTS = 50
29+
30+
LANGUAGES = {
31+
'en': 'English',
32+
'es': 'Español'
33+
}

‎microblog/messages.pot

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1+
# Translations template for PROJECT.
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# Copyright (C) 2013 ORGANIZATION
3+
# This file is distributed under the same license as the PROJECT project.
4+
# FIRST AUTHOR <EMAIL@ADDRESS>, 2013.
5+
#
6+
#, fuzzy
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msgid ""
8+
msgstr ""
9+
"Project-Id-Version: PROJECT VERSION\n"
10+
"Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
11+
"POT-Creation-Date: 2013-09-26 14:10-0700\n"
12+
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
13+
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
14+
"Language-Team: LANGUAGE <LL@li.org>\n"
15+
"MIME-Version: 1.0\n"
16+
"Content-Type: text/plain; charset=utf-8\n"
17+
"Content-Transfer-Encoding: 8bit\n"
18+
"Generated-By: Babel 1.3\n"
19+
20+
#: app/views.py:32
21+
msgid "Your post is now live!"
22+
msgstr ""
23+
24+
#: app/views.py:60
25+
msgid "Invalid login. Please try again"
26+
msgstr ""
27+
28+
#: app/views.py:102 app/views.py:139
29+
#, python-format
30+
msgid "User %(nickname)s not found."
31+
msgstr ""
32+
33+
#: app/views.py:118
34+
msgid "Your changes have been saved"
35+
msgstr ""
36+
37+
#: app/views.py:142
38+
msgid "You can't follow yourself!"
39+
msgstr ""
40+
41+
#: app/views.py:146
42+
#, python-format
43+
msgid "Cannot follow %(nickname)s."
44+
msgstr ""
45+
46+
#: app/views.py:150
47+
#, python-format
48+
msgid "You are now following %(nickname)s."
49+
msgstr ""
50+
51+
#: app/views.py:158
52+
msgid "User %(nickname) not found."
53+
msgstr ""
54+
55+
#: app/views.py:161
56+
msgid "You can't unfollow yourself!"
57+
msgstr ""
58+
59+
#: app/views.py:165
60+
msgid "Cannot unfollow %(nickname)."
61+
msgstr ""
62+
63+
#: app/views.py:169
64+
#, python-format
65+
msgid "You have stopped following %(nickname)s."
66+
msgstr ""
67+
68+
#: app/templates/base.html:17
69+
msgid "Home"
70+
msgstr ""
71+
72+
#: app/templates/post.html:3
73+
#, python-format
74+
msgid "%(nickname)s said %(when)s"
75+
msgstr ""
76+

‎requirements.pip

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@@ -7,5 +7,5 @@ Flask-Openid==1.1.1
77
Flask-Mail
88
Flask-WhooshAlchemy==0.55a
99
#pytz==2013b
10-
#flask-babel==0.8
10+
Flask-Babel==0.9
1111
#flup

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