The code structure of the project is as follows: main.py is the main program, and the method in file01.py under module is introduced, but because the method in file02.py is also introduced in file01.py, the method of file02.py will not be found during ...
look at the documents on the official website and see that the following two sentences are incomprehensible. Please give me List Lists are mutable sequences, typically used to store collections of homogeneous items (where the precise degree of similar...
Why does the plural in python only use the letter j? wouldn t it be impossible to use the plural in 2x+3y? ...
look up some methods about the use of QMessageBox.information on the Internet, but basically all of them are about C CPP, there is little information about PyQt5, and format and tr (). Arg () are not easy to use. how to output variables through QMessag...
report an error as shown in the figure ModuleNotFoundError: No module named distutils.core ...
I m using MongoDB as a database, and today I encountered a problem trying to update multiple embedded documents of a document at the same time. use environment: Python3.6 PyMongo driver Table format before update: { "_id" : 0, &q...
the crawler encountered an unknown parameter , which is used to request a URL. How to break a URL like:.. talk ExamCaseReportGeneral.jspx?case_id=612e24bf-eae7-4d22-ba4d-9d0169a5a5e6 ...
I want to click the mouse to specify the coordinate location and specify the number of times. is there any shortcut? def click (num): mouseclick(xxx,xxx) ...
for example, when I use kafka or rabbitmq to get data from a message queue, the source has only one queue and cannot offload data from the data source. However, it is difficult to calculate, so it is necessary to divert it internally. For example, my me...
there is a problem with the configuration of fabric automated deployment! I hope you can take the time to answer! ( ) this is the code python -sharp! usr bin env python -sharp -*- coding: utf-8 -*- -sharp fabfile.py import os, re from datetime i...
error "Invalid argument " is reported when there is an English question mark in the path of the parameter file when using the open function of python asked on stackoverflow, and a boss told me, "Install linux.. " Or something else that isn t Windo...
1.Python multiprocesses cannot queue information 2. Code: from urllib import request from bs4 import BeautifulSoup from multiprocessing import Manager from multiprocessing import Pool import os def hand_url(url,name,queue): room_message = {} -sha...
I want to overload the multiplication operator of a vector. At the same time, you can calculate the vector vector, and the vector float v is the vector . def __mul__(v1, v2): return vec3(v1.e[0]*v2.e[0],v1.e[1]*v2.e[1],v1.e[2]*v2.e[2]) ...
by John von Neumann def MergeSort(lists): if len(lists)<=1: return lists num=int(len(lists) 2) left=MergeSort(lists[:num]) right=MergeSort(lists[num:]) return Merge(left,right) def Merge(left,right): l,r=...
...
url = "xxxx "; data = { "submitdata":"1$2^}2$2}3$1}4$1^}5$2^", "submittype":1, "curID":"23679247", "t":"1526365748309", "starttime":"2018 5 15 17:43:00", &quo...
there is a python3 by default on the machine, but when you install pip3, you install another python3, because you only write scripts in python, so you don t need extra python,. How can you avoid this problem again? ...
when using pip3 to install arch and ffn python packages under Ubuntu16.04LTS system python3.5.2, it is always prompted: Could not find a version that satisfies the requirement numpy==1.9.3 No matching distribution found for numpy==1.9.3 this error is...
there seem to be only six data types in python3 (strings, numbers, lists, dictionaries, tuples, collections), but I recently learned about the chapter on classes. 1 is an "instance " generated by class instantiation a data type? 2 are binary arrays an...
insert but the data is a number, which is stored in the database as a string, and the corresponding field in the database is also of string type The python statement goes like this: sql = insert into uhaoma343 (riqi,uhaoma) values({},{}) .format(r...