module

问题 The following code doesn't compile, because it says that requests is not defined when I try to use it in the operations module. I think this maybe has something to do with importing modules maybe, but I'm really new to rust and don't understand. I thought I could just do module::struct and as long as the struct was public I would be able to access it. Can someone explain why this doesn't work, and how to make this work? pub mod vehicles { pub struct Vehicle { _vehicle_id: u64, _capacity: u32,

问题 I started using the pvfactors tool in Python (which calculates the irradiance incident on surfaces of a photovoltaic arrays) following the website tutorial 1. import numpy as np import matplotlib.pyplot as plt from datetime import datetime import pandas as pd import warnings warnings.filterwarnings("ignore", category=RuntimeWarning) # Settings 'exec(%matplotlib inline)' np.set_printoptions(precision=3, linewidth=300) #Get timeseries inputs df_inputs = pd.DataFrame( {'solar_zenith': [20., 50.]

问题 Trying to find a good and proper pattern to handle a circular module dependency in Python. Usually, the solution is to remove it (through refactoring); however, in this particular case we would really like to have the functionality that requires the circular import. EDIT : According to answers below, the usual angle of attack for this kind of issue would be a refactor. However, for the sake of this question, assume that is not an option (for whatever reason). The problem: The logging module

问题 Trying to find a good and proper pattern to handle a circular module dependency in Python. Usually, the solution is to remove it (through refactoring); however, in this particular case we would really like to have the functionality that requires the circular import. EDIT : According to answers below, the usual angle of attack for this kind of issue would be a refactor. However, for the sake of this question, assume that is not an option (for whatever reason). The problem: The logging module

问题 I am new to Selenium/Python and practicing few exercises. I am receiving below error when running my Selenium/Python program in pycharm. Please help. C:\Users\rk.marav\PycharmProjects\RadhaSelenium\venv\Scripts\python.exe C:/Users/rk.marav/PycharmProjects/RadhaSelenium/Tests/mainTest.py Traceback (most recent call last): File "C:/Users/rk.marav/PycharmProjects/RadhaSelenium/Tests/mainTest.py", line 13, in <module> m.main() File "C:/Users/rk.marav/PycharmProjects/RadhaSelenium/Tests/mainTest

问题 In my main file I have a surface called win . I import a module like so from draw import * . def draw(image,x,y): win.blit(image,(x,y)) This is a function from draw . It doesn't work because win is not defined. How to make it defined? 回答1: Add an additional parameter for the target surface to the function: def draw(target, image, x, y): target.blit(image, (x, y)) Pass win to the draw function: draw(win, image, x, y) Alternatively, you can create a variable in the module's global namespace:

问题 In my main file I have a surface called win . I import a module like so from draw import * . def draw(image,x,y): win.blit(image,(x,y)) This is a function from draw . It doesn't work because win is not defined. How to make it defined? 回答1: Add an additional parameter for the target surface to the function: def draw(target, image, x, y): target.blit(image, (x, y)) Pass win to the draw function: draw(win, image, x, y) Alternatively, you can create a variable in the module's global namespace:

问题 I wanted to create a virtualenv for python 2.7 (I'm using 3.7) I run the cmd as admin (on windows 10) : C:\WINDOWS\system32>virtualenv -p C:\Python27\python.exe py27 An I got the error: Running virtualenv with interpreter C:\Python27\python.exe Traceback (most recent call last): File "c:\path\to\virtualenv.py", line 26, in <module> import logging File "C:\Python27\lib\logging\__init__.py", line 43, in <module> import threading File "C:\Python27\lib\threading.py", line 15, in <module> from

问题 I'm trying to run this code : from distutils.core import setup from distutils.extension import Extension from Cython.Distutils import build_ext ext_modules = [ Extension("sum", ["a123.pyx"])] setup( name = 'app', cmdclass = {'build_ext': build_ext}, ext_modules = ext_modules ) and I got this Error : Traceback (most recent call last): File "compile.py", line 3, in <module> from Cython.Distutils import build_ext ImportError: No module named 'Cython' I'm using Conda and I add cython to it also I

问题 I'm trying to run this code : from distutils.core import setup from distutils.extension import Extension from Cython.Distutils import build_ext ext_modules = [ Extension("sum", ["a123.pyx"])] setup( name = 'app', cmdclass = {'build_ext': build_ext}, ext_modules = ext_modules ) and I got this Error : Traceback (most recent call last): File "compile.py", line 3, in <module> from Cython.Distutils import build_ext ImportError: No module named 'Cython' I'm using Conda and I add cython to it also I