python tornado logging.handlers.HTTPHandler print one more None solution

1, Background: With tornado, asynchronism leads to inaccurate positioning of business logic logs, because half of the output logs are lost to other business logic, and then back to continue to output logs, which makes the logs look like: 2017-09-29 23:59:57,459 Business Factory.py-create() -270 [INFO] [1000108695] [Obtain User Profile Interf ...

Posted on Thu, 20 Dec 2018 09:36:05 -0800 by pcbytes

LeetCode3—Longest Substring Without Repeating Characters

The time complexity analysis of each algorithm in this type of blog is deduced by the blogger himself. This type of blog is also a summary of the blogger himself who brushes LeetCode. Therefore, there may be many errors in this type of blog. You are very welcome to comment below the blog. Please don't hesitate to comment. I. Problems Inp ...

Posted on Thu, 20 Dec 2018 06:03:04 -0800 by PrivatePile

android Learning Notes - Broadcast Receiver Receiver Receiver Receiver Broadcasting Process (ip Dialer, sd Card Status, SMS, Application Installation and Unloading)

android has built-in many system-level broadcasts, such as a broadcast when the mobile phone is turned on, a broadcast when the battery power changes, a broadcast when the time or time zone changes, and so on. To receive these broadcasts, you need to use a broadcasting receiver. Here's a basic understanding of the process. Cat ...

Posted on Thu, 20 Dec 2018 05:54:05 -0800 by moiseszaragoza

URLDecoder exception Illegal hex characters in escape (%)

Recent redevelopment on the company system, encounter such an error URLDecoder exception Illegal hex characters in escape (%). First, introduce the structure of this development. First, there is a component system providing services, temporarily called System A, then there is a system providing access to the outside world, called System B, and ...

Posted on Tue, 18 Dec 2018 13:03:04 -0800 by guru2k9

Python 3 full stack development - built-in function complement, reflection, metaclass, u str_, u del_, exec, type, u call_ method

I. Built-in Function Supplement 1. isinstance(obj,cls) checks whether obj is a cls-like object? class Foo(object):   pass obj = Foo() print(isinstance(obj, Foo)) #The result is True 2. issubclass(sub, super) checks whether the subclass is a derived class of the super class. class Foo(object):   pass class Ba ...

Posted on Mon, 17 Dec 2018 02:12:04 -0800 by Gorf

Android Background Style shape -- line Line, ring Ring

I. Write in the foregoing: Rectangle rectangle and oval ellipse are introduced before, ring ring ring and line line are introduced below. As a programmer, it's a terrible thing to feel that there's nothing to do. Looking at it, the world of coding is too big, and there's a lot to learn. It's necessary to have an effective way of learning that ...

Posted on Sat, 15 Dec 2018 09:03:03 -0800 by missyevil

Memory Management and Circular References in Python

-- [since Python 3.4, circular references are handled much better](http://engineering.hearsaysocial.com/2013/06/16/circular-references-in-python/#comment-2882030670) Nice post. Note that starting from Python 3.4, circular references are handled much better (docs imply it should be rare that they are not collected -- but don't give specifics ab ...

Posted on Thu, 13 Dec 2018 23:48:05 -0800 by glory452

"0014" - Solidity Types - Dynamic size byte array

Kong Yi College: Leading Brand of Vocational Education in Domestic Block Chain Author: Li Yuechun, Block Chain, High Availability Architecture Engineer Wechat: Liyc1215 QQ group: 348924182 blog: http://liyuechun.org I. Dynamically-sized byte array String is a dynamic size UTF-8 encoding string. It is actually a special variable byte array. ...

Posted on Wed, 12 Dec 2018 21:27:07 -0800 by Kaboom