使用Python和Flask raise RuntimeError:在请求contex之外工作

Question

从问题中：

Streaming data with Python and Flask

代码运行正常，我想修改函数g()，但是请求参数不能传递给g()，它引发了一个RuntimeError: working outside of request context.

我调试了很长时间，不知道怎么修改，你能帮我复习一下代码，解释一下错误背后的原因吗？在

谢谢。在

我的代码是：

@app.route('/username', methods=['GET', 'POST'])
def index():
    req =request
    print req
    print "111------------"  + req.method + "\n"
    def ggg1(req):
        print req  # the req not my pass into the req....
        print "444------------" + req.method + "\n"
        if req.method == 'POST':
            if request.form['username']:
                urlList = request.form['username'].splitlines()
                i = 0
                for url in urlList():
                    i += 1
                    resultStr = chkListPageContent(url, getUrlContent(url), "script")
                    print i, resultStr
                    yield i, resultStr
    print req
    print "222------------" + req.method + "\n"
    return Response(stream_template('index.html', data=ggg1(req)))

Answer 1

您需要使用stream_with_context()。Reference