Question

我正在使用应用工厂和蓝图来模块化我的应用程序。 templates文件夹位于app包下，包含index.html模板。但是，我在查看页面时收到project/ ├── app │ ├── __init__.py │ └── templates │ └── index.html └── run.py。为什么找不到我的模板？

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

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Answer 1

您有错字：Flask('__name__')不应该在__name__附近加引号。修正拼写错误，使其成为app = Flask(__name__)。

传递给import_name的参数Flask让它可以找出模板文件夹之类的目录。由于字符串'__name__'实际上并未描述您的应用的位置，因此Flask会假定当前的工作目录。但是您已经从上面的目录中运行，因此无法找到模板文件夹。

使用app工厂的Flask app无法找到模板

1 个答案: