python-3.x

问题 I'm trying to make an application that uses QML QCharts to visualize data. The program is crashing at startup before a window even appears. I tried on both macOS and Windows 10 with the same results. I have included a minimally working example below. main.py : import sys from PySide2.QtGui import QGuiApplication from PySide2.QtQml import QQmlApplicationEngine from PySide2.QtCore import QUrl import qml_rc if __name__ == "__main__": app = QGuiApplication(sys.argv) engine = QQmlApplicationEngine

问题 I'm trying to make an application that uses QML QCharts to visualize data. The program is crashing at startup before a window even appears. I tried on both macOS and Windows 10 with the same results. I have included a minimally working example below. main.py : import sys from PySide2.QtGui import QGuiApplication from PySide2.QtQml import QQmlApplicationEngine from PySide2.QtCore import QUrl import qml_rc if __name__ == "__main__": app = QGuiApplication(sys.argv) engine = QQmlApplicationEngine

问题 I am trying to access the sign in button on the url as shown in the code below. I have verified the content of the url as well as the href. They are both consistent with what appears using inspect element dev tool. But on clicking the extracted element I get the error: Message: element not interactable I have no idea why is this occurring. Kindly help me solve this issue from selenium import webdriver from selenium.webdriver.common.keys import Keys from selenium.webdriver.support.ui import

问题 I am trying to access the sign in button on the url as shown in the code below. I have verified the content of the url as well as the href. They are both consistent with what appears using inspect element dev tool. But on clicking the extracted element I get the error: Message: element not interactable I have no idea why is this occurring. Kindly help me solve this issue from selenium import webdriver from selenium.webdriver.common.keys import Keys from selenium.webdriver.support.ui import

问题 I need to sum all the numbers of the "Total Sum" Column of Treeview: The code is: from tkinter import ttk import tkinter as tk from tkinter import* def update(): listBox.insert('','end',value=('APL', t1.get(),t2.get(),t3.get())) root = tk.Tk() root.geometry('1000x600') e8 = tk.Label(root,text="APL").grid(row=1,column=0) t1 = tk.Entry(root) t1.grid(row=1,column=1) t2 = tk.Entry(root) t2.grid(row=1,column=2) t3 = tk.Entry(root) t3.grid(row=1,column=3) cols = ('name', 'No1', 'No2', 'total sum')

问题 Context: I have an app that serves interactive graphs and data analysis. In order to calculate plots and data summaries, it uses a dataset that is loaded upon App initialization by querying google BigQuery. The data is then kept as a global variable (in memory) and is used in all data calculations and plots that might be run by different users (each user saves in their session their own filters/mask). This dataset changes in BigQuery once per day during the night (I know the exact datetime of

问题 I am trying to convert an existing PySide2/QtWidgets application to PySide2/QML. I am trying to get a list of custom objects from a Python service call via a QML MouseArea click. I currently have a main script ( main.py ) that launches a QQuickView containing my QML (contained in main.qml ). It also registers a custom type for my model ( Role , defined in role.py ) and exposes an instance of my service class (contained in mock_role_service.py ) to the view's root context. My QML displays

问题 This is in my setup.py : setup(..., install_requires=[ 'fons @ git+https://github.com/binares/fons.git', ], ) Installing the package on Windows (pip 19.3.1, python 3.6.5) works just fine, but on Ubuntu 18.04 (pip 9.0.1, python 3.6.9) I get : requests.exceptions.HTTPError: 404 Client Error: Not found for url: https://pypi.org/simple/fons (I used commands: pip install wsclient-0.1.0.tar.gz and pip3 install wsclient-0.1.0.tar.gz ) How to make it work on both platforms? 回答1: https://setuptools

问题 This is in my setup.py : setup(..., install_requires=[ 'fons @ git+https://github.com/binares/fons.git', ], ) Installing the package on Windows (pip 19.3.1, python 3.6.5) works just fine, but on Ubuntu 18.04 (pip 9.0.1, python 3.6.9) I get : requests.exceptions.HTTPError: 404 Client Error: Not found for url: https://pypi.org/simple/fons (I used commands: pip install wsclient-0.1.0.tar.gz and pip3 install wsclient-0.1.0.tar.gz ) How to make it work on both platforms? 回答1: https://setuptools

问题 Given a test dataset as follows: id city name 0 1 bj NaN 1 2 bj jack 2 3 bj NaN 3 4 bj jim 4 5 sh NaN 5 6 sh NaN 6 7 sh steve 7 8 sh fiona 8 9 sh NaN How could I groupby city and drop NaN rows for name while preserving one only for each group ? Many thanks. The expected result will like this: id city name 0 1 bj NaN 1 2 bj jack 2 4 bj jim 3 5 sh NaN 4 7 sh steve 5 8 sh fiona New dataset read by df = pd.read_clipboard(na_filter = False) from excel file, please note N/A should not be considered