python-3.x

问题 I'm currently new to both beautiful soup and geckodriver working on selenium 3. I am working on a project where I have to scrape URL from web pages. I found that both of them are used for web scrapping, but could not get the difference between the two of them. What is the difference between BeautifulSoup and Geckodriver? Thanks for the help. 回答1: BeautifulSoup is designed for web scraping. a Python library for pulling data out of HTML and XML files. It works with your favorite parser to

问题 I am using jupyter lab to run spark-nlp text analysis. At the moment I am just running the sample code: import sparknlp from pyspark.sql import SparkSession from sparknlp.pretrained import PretrainedPipeline #create or get Spark Session #spark = sparknlp.start() spark = SparkSession.builder \ .appName("ner")\ .master("local[4]")\ .config("spark.driver.memory","8G")\ .config("spark.driver.maxResultSize", "2G") \ .config("spark.jars.packages", "com.johnsnowlabs.nlp:spark-nlp_2.11:2.6.5")\

问题 I have this piece of code right here: import pygame pygame.display.init() pygame.font.init() win = pygame.display.set_mode((100, 100)) font = pygame.font.Font('./arial.ttf', 10) text = font.render('سلام', True, (255, 255, 255)) win.fill((0, 0, 0)) win.blit(text, (0, 0)) pygame.display.update() for i in range(5): pygame.event.clear() pygame.time.delay(1000) pygame.quit() What I expect: سلام What I get: س‌ل‎ا‌م How to fix it? (I don't care if I need to use another library to fix it, But I must

问题 I have this piece of code right here: import pygame pygame.display.init() pygame.font.init() win = pygame.display.set_mode((100, 100)) font = pygame.font.Font('./arial.ttf', 10) text = font.render('سلام', True, (255, 255, 255)) win.fill((0, 0, 0)) win.blit(text, (0, 0)) pygame.display.update() for i in range(5): pygame.event.clear() pygame.time.delay(1000) pygame.quit() What I expect: سلام What I get: س‌ل‎ا‌م How to fix it? (I don't care if I need to use another library to fix it, But I must

问题 I have this piece of code right here: import pygame pygame.display.init() pygame.font.init() win = pygame.display.set_mode((100, 100)) font = pygame.font.Font('./arial.ttf', 10) text = font.render('سلام', True, (255, 255, 255)) win.fill((0, 0, 0)) win.blit(text, (0, 0)) pygame.display.update() for i in range(5): pygame.event.clear() pygame.time.delay(1000) pygame.quit() What I expect: سلام What I get: س‌ل‎ا‌م How to fix it? (I don't care if I need to use another library to fix it, But I must

问题 I have some named tuples: JOIN = NamedTuple("JOIN", []) EXIT = NamedTuple("EXIT", []) I also have functions to handle each type of tuple with: def handleJoin(t: JOIN) -> bool: pass def handleExit(t: EXIT) -> bool: pass What I want to do is create a dictionary handleTuple so I can call it like so: t: Union[JOIN, EXIT] = #an instance of JOIN or EXIT result: bool result = handleTuple[type(t)](t) What I cannot figure out is how to define said dictionary. I tried defining a generic T : T = TypeVar

问题 I have a bit of experience with Flask but not very much with databases (Flask-migrate / alembic / SqlAlchemy). I'm following this tutorial and things are working quite alright. I have a User model like this: # user_model.py from app import DB ... other imports class User(UserMixin, DB.Model): __tablename__ = 'users' id = DB.Column(DB.Integer, primary_key=True) username = DB.Column(DB.String(64), index=True, unique=True) email = DB.Column(DB.String(120), index=True, unique=True) password_hash

问题 I have a bit of experience with Flask but not very much with databases (Flask-migrate / alembic / SqlAlchemy). I'm following this tutorial and things are working quite alright. I have a User model like this: # user_model.py from app import DB ... other imports class User(UserMixin, DB.Model): __tablename__ = 'users' id = DB.Column(DB.Integer, primary_key=True) username = DB.Column(DB.String(64), index=True, unique=True) email = DB.Column(DB.String(120), index=True, unique=True) password_hash

问题 I have an image (a captcha) that I download from the web. When I loaded to opencv it seems to loose its properties or simply mixes the transparent background with the dark/black colors: Currently the code does nothing but loading a writing again: captchaImg = cv2.imread('captcha1.png') cv2.imwrite("captcha2.png", captchaImg) I have tried loading also with options 0, 1, 2, 3 but the result is the same. 回答1: Well this is a problem with opencv and it has a solution with opencv but it is kind of

问题 Very simply, I'm reasonably new to coding, and I'm going through another person's code to understand what it is doing as I have to use it for data analysis but I notice that they do the following: import matplotlib.pyplot as plt . . . import matplotlib as mpl import numpy as np . . import matplotlib.ticker I thought that " import matplotlib as mpl " would import all modules contained in matplotlib and therefore there need to separately import the module " ticker " from matplotlib after this?