ImportError: No module named 'flask.ext'

[thomasEkla]

Hello,
I have some Mako issues with Flask.
When I launch my 'run' I have this error :" ImportError: No module named 'flask.ext' "
This is my app and 3 .py file to run it :

the init.py file should init app =

import logging
from logging.handlers import SMTPHandler, RotatingFileHandler
import os, pickle
from flask import Flask, request, current_app
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
from flask_login import LoginManager
from flask_mail import Mail
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from flask_mako import MakoTemplates
from flask_babel import Babel, lazy_gettext as _l
from config import Config
from elasticsearch import Elasticsearch
from redis import Redis
import rq
from .admin import Admin

db = SQLAlchemy()
migrate = Migrate()
login = LoginManager()
login.login_view = 'auth.login'
login.login_message = _l('Please log in to access this page.')
mail = Mail()
bootstrap = Bootstrap()
moment = Moment()
babel = Babel()
Mako = MakoTemplates()
admin = Admin()

def create_app(config_class=Config):
    app = Flask(__name__)
    app.config.from_object(config_class)

    Mako.init_app(app)
    db.init_app(app)
    migrate.init_app(app, db)
    login.init_app(app)
    mail.init_app(app)
    bootstrap.init_app(app)
    moment.init_app(app)
    babel.init_app(app)
    app.elasticsearch = Elasticsearch([app.config['ELASTICSEARCH_URL']]) \
        if app.config['ELASTICSEARCH_URL'] else None
    app.redis = Redis.from_url(app.config['REDIS_URL'])
    app.task_queue = rq.Queue('microblog-tasks', connection=app.redis)
    admin.init_app(app)

    from app.errors import bp as errors_bp
    app.register_blueprint(errors_bp)

    from app.auth import bp as auth_bp
    app.register_blueprint(auth_bp, url_prefix='/auth')

    from app.main import bp as main_bp
    app.register_blueprint(main_bp)

    if not app.debug and not app.testing:
        if app.config['MAIL_SERVER']:
            auth = None
            if app.config['MAIL_USERNAME'] or app.config['MAIL_PASSWORD']:
                auth = (app.config['MAIL_USERNAME'],
                        app.config['MAIL_PASSWORD'])
            secure = None
            if app.config['MAIL_USE_TLS']:
                secure = ()
            mail_handler = SMTPHandler(
                mailhost=(app.config['MAIL_SERVER'], app.config['MAIL_PORT']),
                fromaddr='no-reply@' + app.config['MAIL_SERVER'],
                toaddrs=app.config['ADMINS'], subject='Microblog Failure',
                credentials=auth, secure=secure)
            mail_handler.setLevel(logging.ERROR)
            app.logger.addHandler(mail_handler)

        if not os.path.exists('logs'):
            os.mkdir('logs')
        file_handler = RotatingFileHandler('logs/microblog.log',
                                           maxBytes=10240, backupCount=10)
        file_handler.setFormatter(logging.Formatter(
            '%(asctime)s %(levelname)s: %(message)s '
            '[in %(pathname)s:%(lineno)d]'))
        file_handler.setLevel(logging.INFO)
        app.logger.addHandler(file_handler)

        app.logger.setLevel(logging.INFO)
        app.logger.info('Microblog startup')

    return app


from app import models

this is the init for Views.py, this should run templates =

import os, pickle
from datetime import datetime
from flask import render_template, flash, redirect, url_for, request, g, \
    jsonify, current_app
from flask_mako import render_template as m
from flask_login import current_user, login_required
from flask_babel import _, get_locale
from guess_language import guess_language
from app import db
from app.main.forms import EditProfileForm, DashForm, SearchForm, MessageForm, CustomBoard
from app.models import User, Dash, Message, Notification, Machine, DashOne
from app.main import bp


@bp.route('/mako')
@login_required
def hello_mako():
    return m('hello.html', name='mako')

this is a simple Mako template hello.html =

<%inherit file="base.html"/>
<%
    rows = [[v for v in range(0,10)] for row in range(0,10)]
%>
<table>
    % for row in rows:
        ${makerow(row)}
    % endfor
</table>

<%def name="makerow(row)">
    <tr>
    % for name in row:
        <td>${name}</td>\
    % endfor
    </tr>
</%def>

Thanks for your help. I hope some people can help me.

[jamiebegin]

The Flask API changed since the docs were written. Change from flask.ext.mako import MakoTemplates to from flask_mako import MakoTemplates. Though this project seems to be dead. :-\

[spollard]

FYI This is fixed in
a5ec694

I vote to fork! 🍴