The scenario is that has a stack of py files in the commands directory. Each file is a class. Each class has a different approach. such as -sharp daemon.py import commands while True: message = json.loads(mq.receive()) if not hasattr(com...
problem description python3 uses process communication, I crawled to some agents, need to check availability, use the validator function, and then I opened the process pool to run the validator function. Validator will put the available agents to Queu...
encountered a problem in the process of writing data to Excel. The written data is looped in by for, so it is written multiple times (written once per for cycle, with dozens of data at a time). but when the data is written in the second for cycle, the ...
We have a system that allows you to execute commands from customer post, call ansible api to execute commands on remote systems, should be limited to query commands, such as ps -ef | grep java | rm somefile netstat -anpt | grep 1234 | pkill someproce...
I python novice, when flipping through pep484 , and mypy , I encountered something I didn t understand, as follows: -sharp Construct an empty Stack[int] instance stack = Stack[int]() stack.push(2) stack.pop() stack.push( x ) -sharp Type error m...
r = requests.get ( http: github.com )r.url https: github.com r.status_code200r.history is requests.get ( http: github.com )) equivalent to browsing http: github.com if it uses Baidu statistics or Google statistics, will record this tra...
< H2 > question < H2 > Python s module socket uses ecv () to constantly listen to the request data sent by the client, including the empty string bounded . How to identify the empty request and block it? < H2 > Source code < H2 > Server side:...
r=requests.get(url,headers=headers) html = etree.HTML(r.text) items=html.xpath( div[@class="result c-container "] ) -sharp for item in items: item...
problem description Pip can be used normally in jupyterNotebook after Tensorflow is installed normally, but when importing from normal command line and pycharm, it is found that the imported package is not a normal package (you can import the package ...
recently, I have been learning about crawlers. They usually either climb pictures or climb text. Recently, I thought about climbing the cover and title profile of Douban book page, thinking about saving it together, but I didn t seem to see this method...
A json file with millions of lines needs to be cleaned and the cleaned structured data needs to be re-stored as a csv file. Try to use pandas s dataframe to dump cleaned data items, but find that the speed of conventional cleaning is too slow to write ...
problem description when there are many pyspider projects, it is always stuck there and cannot run tasks automatically the environmental background of the problems and what methods you have tried it is not possible to add more than one processor f...
I want to insert 10 pieces of data into the array users_values.append((i, 75, 1, x[j] + .mp4 , str(uuid.uuid1()) + ".mp4", abc , 2018-08-01 06:21:37 , 2018-08-01 06:21:37 , 0, 0)) 10 pieces of da...
python pyhive through SSH tunnel connection hive, error content is: Could not start SASL: b Error in sasl_client_start (- 4) SASL (- 4): no mechanism available: Unable to find a callback: 2 ) ask for advice from sshtunnel import SSHTunnelForwarder f...
I can insert data into the mysql database with this command insert into moderation_task(id, media_id, user_id, media_url_or_path, media_title, media_source, created, updated, status, is_del) values(105, 75, 1, audit_source origin...
browser.get(url) -sharp mei = browser.find_element_by_xpath( ul li[1] span span a ) -sharp meishi.click() -sharp liebiao = meishi.click().find_element_by_xpath( li[@class="clear btm"] div[1] a @href ) -sharp ... here comes the probl...
users = [] data = {} for r in results: user = {} -sharp user[ select_id ] = r[0] -sharp user[ media_id ] = r[1] -sharp user[ user_id ] = r[2] -sh...
RT. the demand scenario is like this: made an app, notification of information + e-commerce for free, but I don t know what to push every day, so I wondered if I could monitor the peer s app notification, and then I also push this. There s really ...
A novice learner python, would like to ask about the use of the pass statement here. the last one below is an example on Mr. Liao Xuefeng s website. what is the purpose of the pass statement? Deleting pass and leaving pass seems to have no effect on t...
-sharpcoding=utf-8 from flask import Flask, request, jsonify, Blueprint import json import result.data as resultData from MysqlHelper import MysqlHelper import pymysql -sharp pymysql -sharp db = pymysql.connect(host="127.0.0.1", user=&quo...