1. Python2.7 python3.5 python3.6 is installed locally, and the 3.53.6 sys.getdefaultencoding () output is all utf-8 2. I configured flask in the pycharm project using python3.6, but a coding error was reported as soon as it was run: FLASK_APP = ru...
first of all, I created a database, called dd in mysal, and then I created a table, called books in it, and then I executed the following command in python, hoping to insert a value in books: < hr > import pymysql conn=pymysql.connect (host= "127....
1 error such as screenshot 2 system: win10 + PyCharm 2017.2.3 x64 + python3.6.2 + Django2.04 ...
ask a question about css breaking the table on this node? Thank you as shown in the picture. I erased the text, formatted it and stretched it out. As follows: http: www.yiyuanzhaopin.com . http: www.yiyuanzhaopin.com . above is the source cod...
I saved the captured structure in a list, and then wrote it into a CSV file, only to find that one letter occupies a cell. I have tried several methods, but I hope the master can point me out . ulist = [] for i in range(1,2): -sharp new_url = ur...
one of the projects that I am very interested in learning node, recently is to make chat tools. at first, it established a socket connection between the server and the client, and then sent messages to each other. now I want to communicate between th...
some data are like this: 1186486, 0215648, 00064876, mysql stores data to columns of char type, data is stored in front of 0, all columns are killed. How to solve the short ones are preceded by 0, and the data is a string in python and does not ki...
1. After the emergence of json.decoder.JSONDecodeError, Baidu in the process of practicing using JSON, I still can t find a solution. I hope there is a great god who can help me to answer it. 2. The code is as follows: import json def get_stored_nu...
Why isn t there a debugger is activate prompt like on the Internet? ...
regular: ^ [u4e00-u9fa5] + (- [u4e00-u9fa5] +) * $ description: for matching Chinese names found on the Internet, ethnic minorities are separated by horizontal lines. I now want to limit the overall length to 2-6 digits for advice. Thank you in adv...
all kinds of inquiries about all kinds of installations, there are a lot of bad ones, but they still report an error . system: centos7 Framework: tornado error message Traceback (most recent call last): File " home king PycharmProjects unti...
I would like to ask why the formal parameter of the Python function can be changed sometimes and sometimes not? Forgive me for not knowing how to describe it, so I borrowed the concept of "deep and shallow copy ". def func(x,y,l): x = y+1 l.ap...
python alien project, aliens can only move one line, other lines can not move, solve? main function import pygame from pygame.sprite import Group from setting import Settings from ship import Ship import game_functions as gf from alien import Alien ...
read the chapter hmac of teacher Liao s hash algorithm, and I m a little confused! 1. The article says that it is more difficult to crack by adding a password, but the password must be saved on the client or obtained on the server. Can t I just sp...
I want to transfer the array of objects to the background using post. This is how I pass it: Http({ method: POST , url: addGroup , data:qs.stringify({ list :this.excelData }) }) ...
-sharp -*- coding: utf-8 -*- from flask import Flask from flask_restful import reqparse,Api, Resource app = Flask(__name__) api = Api(app) parser = reqparse.RequestParser() parser.add_argument( task ) class TodoList(Resource): def post(self): ...
the sample code that runs tensorflow is wrong shows that the parameters are wrong, but I don t know what went wrong ...
import requests url = https: www.zhihu.com people kaifulee activities headers = { authorization : oauth c3cef7c66a1843f8b3a9e6a1e3160e20 , accept : application json, text plain, * * , accept-encoding : deflate, br , accep...
In [50]: response.encoding Out [50]: utf-8 I want to collect some information of Zhihu for analysis. In the response returned by the request, The string text is in this messy format: "sKE " ( "C " I=x00x1a) x0b "uf3d0an " x7f "{7x15 " x07 "x05...
the following is a routine in the book: def flatten(nested): try: -sharp try: nested + except TypeError: pass else: raise TypeError for sublist in nested: ...
the requirement is: if the name of the array is the same, compare which timestamp, is larger to retain which, and remove the smaller one. The array is as follows: var arr = [ {name: "", timestamp: 1537243392}, {name: "", tim...
I emplace a new custom class in the set container, in which there is a custom comparison function to sort, and then add two elements An and B in the container. I delete B, change the value of B, and re-emplace B, but validating the returned value will ...
solicit two tree mapping wire controls, the performance of their own drawing is too poor. ...
rule (the result of formula calculation is the ranking of topic heat): : I would like to ask how such a requirement can reduce the consumption of server performance, can you tell me about the solution? ...
problem description as shown in the figure, excluding the date at the top of the page and the navigation at the end of the page, the middle part is divided into two parts, the upper part is the circle and the overall display of the interior, and the...