Python烧瓶重定向错误

当发生异常时，我想重定向到带有错误代码的注册页面。我怎么能在烧瓶里做这个？如何重定向到带有错误代码的同一页

@app.route('/signup', methods=['GET','POST'])
def signup():
  error = None
  if request.method == 'POST':
    try:
      ... my code ...
    except Exception, e:
      error = "hey this is error"
      ... i want to redirect to signup with error ...
      ... i get only some stacktrace page due to debug ...
    return redirect(url_for('login'))
  return render_template('signup.html', error=error)

---

您需要放置try/except依赖返回语句来处理这个问题。问题是，无论try/except中发生什么，如果它输入if语句，它都将转到登录页面。您需要相应地分解您的返回声明

@app.route('/signup', methods=['GET','POST'])
def signup():
    error = None
    if request.method == 'POST':
        try:
            ... my code ...
            return redirect(url_for('login'))
        except Exception, e:
            error = "hey this is error"
            ... i want to redirect to signup with error ...
            return render_template('signup.html', error=error)
    return render_template('signup.html', error=error)