global

问题 I'm studying python, and getting struggle with the global keyword within vscode . So far the code is working, but the vscode linter is raising an error, and I would like to understand why I've tried using the global keyword, and the code works fine even though I got a linter error. I try using a local variable and didn't get any error def whatIs (): global myvalue myvalue +=10 print("myvalue: {}".format(myvalue)) myvalue=10 whatIs() print("myvalue: {}".format(myvalue)) The linter points to

问题 I'm designing an inventory class in Python, it is supposed to keep track of the items a store has in stock, add new ones, and delete them, as well. The trouble comes from my "item" definitions within the class. When I add another item to my dictionary, it replaces it, it doesn't add it. I appreciate your help! Why won't it add??? class Store: def __init__(self, name, email): self.name = name self.email = email # two accessor methods def getName(self): return self.name def getEmail(self):

问题 I'm designing an inventory class in Python, it is supposed to keep track of the items a store has in stock, add new ones, and delete them, as well. The trouble comes from my "item" definitions within the class. When I add another item to my dictionary, it replaces it, it doesn't add it. I appreciate your help! Why won't it add??? class Store: def __init__(self, name, email): self.name = name self.email = email # two accessor methods def getName(self): return self.name def getEmail(self):

问题 Like in R, I would like to set a random seed globally for the entire script/session, instead of having to call the random seed function every time I execute a function or run a model. I am aware that sci-kit learn uses the numpy RNG, but also could not find a way to set it globally. I have read several posts here on this topic, such as this one: Differences between numpy.random and random.random in Python It explains the difference between the two RNG classes, but not how to set it globally.

问题 I am creating a program that allows you to paste text but it will look like you are typing it as it pastes, Paste Typer. I am wanting to use Ctrl + b to set off the pasting, but I am having issues with hotkeys. I think what I need is to use a WH_KEYBOARD_LL hook and include that user32 file but I usually get errors when I add it and the namespace. I have come closest with this: http://thedarkjoker94.cer33.com/?p=111 - but it doesn't seem to work with Ctrl , alt and other modifiers, even when

问题 I figured that the latest build release would allow me to use ejs globally without using node so I tried doing so. Though, when I try to use ejs.renderFile(params...), i get the error: TypeError: exports.fileLoader is not a function Which is just another node module. Is there a way to get around this? Note: This is the only time we use EJS at my company, so, if not, would you kindly point me in a good direction in how to render .ejs files. 回答1: Update: You can create an EJS object by running

问题 I figured that the latest build release would allow me to use ejs globally without using node so I tried doing so. Though, when I try to use ejs.renderFile(params...), i get the error: TypeError: exports.fileLoader is not a function Which is just another node module. Is there a way to get around this? Note: This is the only time we use EJS at my company, so, if not, would you kindly point me in a good direction in how to render .ejs files. 回答1: Update: You can create an EJS object by running

问题 I figured that the latest build release would allow me to use ejs globally without using node so I tried doing so. Though, when I try to use ejs.renderFile(params...), i get the error: TypeError: exports.fileLoader is not a function Which is just another node module. Is there a way to get around this? Note: This is the only time we use EJS at my company, so, if not, would you kindly point me in a good direction in how to render .ejs files. 回答1: Update: You can create an EJS object by running

问题 Hello I am new user to Python - Could somebody help me understand why i cant seem to declare this global variable col_number. I want to try and use the col_number to pass it to the plotting function. Ive tried declaring it as a global variable but I am just guessing now - not really sure how to fix this. Thanks from matplotlib import style from matplotlib import pyplot as plt import numpy as np import csv # import random used for changing line colors in chart import random from itertools

问题 I have a variable and I want my user to be able to change this variable. The original value of the variable should change, so it can be also be used in another function. (The user enters a new date, and this variable then gets changed at the end of the url (of the other function, that calls the map), which then shows the data from that date.) I know I have to make my variable global, but I still doesn't work. It's probably something dumb, but I just can't seem to make it work. What am I doing