アプリケーション工場を使用しているフラスコのアプリケーションはテンプレートを見つけることができません

Question

私はアプリケーションファクトリと設計図を使用してアプリケーションをモジュール化しています。テンプレートフォルダは、アプリケーションパッケージの下にあり、index.htmlテンプレートが含まれています。しかし、私はページを見るときTemplateNotFoundErrorを得る。テンプレートが見つからないのはなぜですか？

project/ 
├── app 
│   ├── __init__.py 
│   └── templates 
│    └── index.html 
└── run.py 

app/__init__.py

from flask import Flask, Blueprint, render_template 

def create_app(): 
    app = Flask('__name__') 
    app.register_blueprint(home) 
    return app 

home = Blueprint('home', __name__) 

@home.route('/') 
def homepage(): 
    return render_template('home/index.html') 

run.py

from app import create_app 
app = create_app() 
app.run() 

File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/werkzeug/serving.py", line 267, in run_wsgi 
    execute(self.server.app) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/werkzeug/serving.py", line 255, in execute 
    application_iter = app(environ, start_response) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/app.py", line 1997, in __call__ 
    return self.wsgi_app(environ, start_response) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/app.py", line 1985, in wsgi_app 
    response = self.handle_exception(e) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/app.py", line 1540, in handle_exception 
    reraise(exc_type, exc_value, tb) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/app.py", line 1982, in wsgi_app 
    response = self.full_dispatch_request() 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/app.py", line 1614, in full_dispatch_request 
    rv = self.handle_user_exception(e) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/app.py", line 1517, in handle_user_exception 
    reraise(exc_type, exc_value, tb) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/app.py", line 1612, in full_dispatch_request 
    rv = self.dispatch_request() 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/app.py", line 1598, in dispatch_request 
    return self.view_functions[rule.endpoint](**req.view_args) 
    File "/Users/saikrishnamohan/Projects/FlaskVueApp/dream-team/app/home/views.py", line 12, in homepage 
    return render_template('home/index.html', title="Welcome") 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/templating.py", line 133, in render_template 
    return _render(ctx.app.jinja_env.get_or_select_template(template_name_or_list), 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/jinja2/environment.py", line 869, in get_or_select_template 
    return self.get_template(template_name_or_list, parent, globals) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/jinja2/environment.py", line 830, in get_template 
    return self._load_template(name, self.make_globals(globals)) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/jinja2/environment.py", line 804, in _load_template 
    template = self.loader.load(self, name, globals) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/jinja2/loaders.py", line 113, in load 
    source, filename, uptodate = self.get_source(environment, name) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/templating.py", line 57, in get_source 
    return self._get_source_fast(environment, template) 
    File "/Users/saikrishnamohan/Projects/VirtualEnvs/flaskVue/lib/python2.7/site-packages/flask/templating.py", line 85, in _get_source_fast 
    raise TemplateNotFound(template) 
TemplateNotFound: home/index.html 

Answer 1

あなたはタイプミスを持っている：Flask('__name__')は__name__引用符で囲む必要はありません。 入力ミスを修正してapp = Flask(__name__)にしてください。

import_nameをFlaskに渡すと、テンプレートフォルダのようなディレクトリがどこにあるのかがわかります。文字列'__name__'は実際にあなたのアプリがどこにあるかを記述していないので、Flaskは現在の作業ディレクトリを想定しています。しかし、ディレクトリからパッケージを実行しているので、テンプレートフォルダが見つかりません。