Learning decorators and I wanted to pass a function with arguments to a decorator function like shown below but I always get a syntax error. Please help! Output: Answer Your syntax is incorrect. To define a correct decorator and wrapper function, see what follows: Output:
Error:module ‘cv2.cv2’ has no attribute ‘STEREO_BM_BASIC_PRESET’
I am trying to get the depth map of two stereo images but error ‘cv2.cv2’ has no attribute ‘STEREO_BM_BASIC_PRESET’ occurred. the code: Answer solved worked with OpenCV 4.
Python Database that stays with the program
So mysql works great when you log into your mysql database program on that device but what if you want to move the program to another device, the connected databases wont work… Is there anyway to have the database somehow within the python file, so that when I move it to other devices it will act the sa…
Why is ‘scipy.sparse.linalg.spilu’ less efficient than ‘scipy.linalg.lu’ for sparse matrix?
I posted this question on https://scicomp.stackexchange.com, but received no attention. As long as I get answer in one of them, I will inform in the other. I have a matrix B which is sparse and try to utilize a function scipy.sparse.linalg.spilu specialized for sparse matrix to factorize B. Could you please e…
Pickle all variables
I”m looking for a way to pickle all the variables with their values in a sorted order. I’m trying the method below: Expected result: Append value of va to totalList , then vb’s value..and so on. And then dump the totalList to a pickle file. I’m getting result like this: I want to get r…
discord.py : Sort message ID in a JSON file by user
I’m currently in the process of making a kind of ticket system. I want to do that through a reaction. When a user clicks on the reaction, a message is sent to a specific channel. This message ID is saved in a JSON file and should be assigned to the user who clicked on the reaction. But if I save
python3.7 subprocess failed to delete files for me
I have a python script using ‘subprocess’ running linux command to confirm my task is doing the right thing, and it worked well. But i found that at the same time it will generate some log files when running my task. So i added a clean up function to rm log files for me at the beginning. My script…
How to rename a header and add values (to this column) based on other header name?
I have multiple Pandas dataframes like this one (for different years): df1= And I would like to assign to the nan the year in the Monthly Flow (2018) column, thus achieving this output: I know how to replace these nan by a specific year, one dataframe at a time. But, since I have a lot of dataframes (and will…
How can I import subpackage?
I have a file structure like this: Dir2.__init__.py have has the same code, but with .Something2 Something.py has simple add method, Something2.py has simple sub method. What I need: But I get an error AttributeError: module ‘Dir1’ has no attribute ‘Dir2’. If I use from .Dir2 import * …
Using Tkinter, Threading and After method
im working on a selenium project using tkinter in python. I want to execute many selenium task at one time(could be up to 100), so I used threading to accomplish this goal, but I came to a problem, due to the fact that I need all individual selenium task to wait a couple seconds between instructions, I used t…