python-3.x

问题 This question already has answers here : What is the Python equivalent of static variables inside a function? (26 answers) Closed last year . Is there a way that a function can remember its previous output and use that value during the next call to the function? For instance, assume there is a function, runningTotal with a single argument x that returns x on the first call to runningTotal but x + prevOutput for every call after that. Is there a way to write such a function in python? I am

问题 This question already has answers here : What is the Python equivalent of static variables inside a function? (26 answers) Closed last year . Is there a way that a function can remember its previous output and use that value during the next call to the function? For instance, assume there is a function, runningTotal with a single argument x that returns x on the first call to runningTotal but x + prevOutput for every call after that. Is there a way to write such a function in python? I am

问题 I am trying to scrape URL's from a website presented as HTML using the BeautifulSoup and requests libraries. I am running both of them on Python 3.5. It seems I am succesfully getting the HTML from requests because when I display r.content, the full HTML of the website I am trying to scrape is displayed. However, when I pass this to BeautifulSoup, BeautifulSoup drops the bulk of the HTML, including the URL I am trying to scrape. from bs4 import BeautifulSoup import requests page = requests

问题 I am trying to scrape URL's from a website presented as HTML using the BeautifulSoup and requests libraries. I am running both of them on Python 3.5. It seems I am succesfully getting the HTML from requests because when I display r.content, the full HTML of the website I am trying to scrape is displayed. However, when I pass this to BeautifulSoup, BeautifulSoup drops the bulk of the HTML, including the URL I am trying to scrape. from bs4 import BeautifulSoup import requests page = requests

问题 Currently im facing following problem: I have 3 download links in a list. Only the last file in the list is downloaded completely. The others have a file size of one kilobyte. Code: from requests import get def download(url, filename): with open(filename, "wb") as file: response = get(url, stream=True) file.write(response.content) for link in f: url = link split_url = url.split("/") filename = split_url[-1] filename = filename.replace("\n", "") download(url,filename) The result looks like

问题 I want to add xml to my .docx document using python-docx library. I tried this code from stackoverflow but it doesn't work, I don't know why. I get nothing when opening the docx with LibreOffice and Microsoft word. table = document.add_table(rows=1, cols=1) p = table.cell(0, 0).paragraphs[0] run = p.add_run() tag = run._r start = docx.oxml.shared.OxmlElement('w:bookmarkStart') start.set(docx.oxml.ns.qn('w:id'), '0') start.set(docx.oxml.ns.qn('w:name'), '0') tag.append(start) ctype = docx.oxml

问题 I want to add xml to my .docx document using python-docx library. I tried this code from stackoverflow but it doesn't work, I don't know why. I get nothing when opening the docx with LibreOffice and Microsoft word. table = document.add_table(rows=1, cols=1) p = table.cell(0, 0).paragraphs[0] run = p.add_run() tag = run._r start = docx.oxml.shared.OxmlElement('w:bookmarkStart') start.set(docx.oxml.ns.qn('w:id'), '0') start.set(docx.oxml.ns.qn('w:name'), '0') tag.append(start) ctype = docx.oxml

问题 I am doing a molecular dynamics simulation. It consists of numerical integration, many for loops, manipulating large NumPy arrays. I have tried to use NumPy function and arrays wherever possible. But the code is still too slow. I thought of using numba jit as a speedup. But it always throws an error message. Here is the code. # -*- coding: utf-8 -*- """ Created on Sat Mar 28 12:10:42 2020 @author: Sandipan """ import numpy as np import matplotlib.pyplot as plt from numba import jit import os

问题 Currently im facing following problem: I have 3 download links in a list. Only the last file in the list is downloaded completely. The others have a file size of one kilobyte. Code: from requests import get def download(url, filename): with open(filename, "wb") as file: response = get(url, stream=True) file.write(response.content) for link in f: url = link split_url = url.split("/") filename = split_url[-1] filename = filename.replace("\n", "") download(url,filename) The result looks like

问题 I want to add xml to my .docx document using python-docx library. I tried this code from stackoverflow but it doesn't work, I don't know why. I get nothing when opening the docx with LibreOffice and Microsoft word. table = document.add_table(rows=1, cols=1) p = table.cell(0, 0).paragraphs[0] run = p.add_run() tag = run._r start = docx.oxml.shared.OxmlElement('w:bookmarkStart') start.set(docx.oxml.ns.qn('w:id'), '0') start.set(docx.oxml.ns.qn('w:name'), '0') tag.append(start) ctype = docx.oxml