python

问题 I'm writing my first real scraper and although in general it's been going well, I've hit a wall using Selenium. I can't get it to go to the next page. Below is the head of my code. The output below this is just printing out data in terminal for now and that's all working fine. It just stops scraping at the end of page 1 and shows me my terminal prompt. It never starts on page 2. I would be so grateful if anyone could make a suggestion. I've tried selecting the button at the bottom of the page

问题 I'm writing my first real scraper and although in general it's been going well, I've hit a wall using Selenium. I can't get it to go to the next page. Below is the head of my code. The output below this is just printing out data in terminal for now and that's all working fine. It just stops scraping at the end of page 1 and shows me my terminal prompt. It never starts on page 2. I would be so grateful if anyone could make a suggestion. I've tried selecting the button at the bottom of the page

问题 I'm writing my first real scraper and although in general it's been going well, I've hit a wall using Selenium. I can't get it to go to the next page. Below is the head of my code. The output below this is just printing out data in terminal for now and that's all working fine. It just stops scraping at the end of page 1 and shows me my terminal prompt. It never starts on page 2. I would be so grateful if anyone could make a suggestion. I've tried selecting the button at the bottom of the page

问题 I'm writing my first real scraper and although in general it's been going well, I've hit a wall using Selenium. I can't get it to go to the next page. Below is the head of my code. The output below this is just printing out data in terminal for now and that's all working fine. It just stops scraping at the end of page 1 and shows me my terminal prompt. It never starts on page 2. I would be so grateful if anyone could make a suggestion. I've tried selecting the button at the bottom of the page

问题 I am trying to receive/send data at the same time, and my idea to doing this was import multiprocessing import time from reprint import output import time import random def receiveThread(queue): while True: queue.put(random.randint(0, 50)) time.sleep(0.5) def sendThread(queue): while True: queue.put(input()) if __name__ == "__main__": send_queue = multiprocessing.Queue() receive_queue = multiprocessing.Queue() send_thread = multiprocessing.Process(target=sendThread, args=[send_queue],)

问题 I have a webscraper setup to go through different dates and pull historical stats and save them to a DF. This has worked fine up until today when I tried updating my database. Here is the code: myDate = startDate while myDate < endDate: dateFormat = "{date.month:02}{date.day:02}{date.year}".format(date=myDate) url = "http://www.example.com/?date="+dateFormat driver.get(url) print(url) time.sleep(3) html = driver.page_source So I added the print command just to see what URL it was sending to

问题 I have a webscraper setup to go through different dates and pull historical stats and save them to a DF. This has worked fine up until today when I tried updating my database. Here is the code: myDate = startDate while myDate < endDate: dateFormat = "{date.month:02}{date.day:02}{date.year}".format(date=myDate) url = "http://www.example.com/?date="+dateFormat driver.get(url) print(url) time.sleep(3) html = driver.page_source So I added the print command just to see what URL it was sending to

问题 How can I compare a Tensorflow string tensor to a python string type. I tried something like this if(tf.constant("neg",tf.string) in key): a=True key here, is a tf.string. I want to see if 'neg' is in the key tensor. 回答1: Unfortunately, currently you cannot. Please ask this on TF github in issues section. 来源： https://stackoverflow.com/questions/35946810/compare-tf-string-and-python-string

问题 I have plotted some data with Python and tried to change the ticks with FuncFormatter . Now I want to change the segmentation into round numbers. I also want minor ticks in the same formation, in my case it would be a 1/x segmentation. I want the scaling to spread. The pictures will help you to imagine my issue. import numpy as np import matplotlib.pyplot as plt import matplotlib.ticker as tick x = np.array([805.92055,978.82006,564.88627,813.70311,605.73361,263.27184,169.40317]) y = np.array(

问题 I have a webscraper setup to go through different dates and pull historical stats and save them to a DF. This has worked fine up until today when I tried updating my database. Here is the code: myDate = startDate while myDate < endDate: dateFormat = "{date.month:02}{date.day:02}{date.year}".format(date=myDate) url = "http://www.example.com/?date="+dateFormat driver.get(url) print(url) time.sleep(3) html = driver.page_source So I added the print command just to see what URL it was sending to