我像这样启动我的烧瓶应用程序：

#!flask/bin/python
from app import app_instance
from gevent.pywsgi import WSGIServer

#returns and instance of the application - using function to wrap configuration
app = app_instance()
http_server = WSGIServer(('',5000), app)
http_server.serve_forever()

然后，当我尝试执行此代码时，请求调用将阻塞，直到原始请求超时为止。我基本上是在同一烧瓶应用程序中调用Web服务。我对gevent有什么误解？发生I / O事件时线程不会屈服吗？

@webapp.route("/register", methods=['GET', 'POST'])
def register():
    form = RegistrationForm(request.form, csrf_enabled=False)
    data = None
    if request.method == 'POST' and form.validate():
        data= {'email': form.email, 'auth_token': form.password,
                'name' : form.name, 'auth_provider' : 'APP'}
        r = requests.post('http://localhost:5000', params=data)
        print('status' + str(r.status_code))
        print(r.json())
    return render_template('register.html', form=form)