I cannot access the values of an index position that has a nan in it and wonder how I could solve this. (In my project this index has a very special meaning and I really need to keep it, otherwise I would need to make some dirty manual modifications: “there is always a solution” even if it is a very
Tag: python
how to combine three lists comprehension into one using only one for loop?
I have a list in range (1 to 31). The final list is l = [x, y, z] You can see my code, it is work fine using three for loops: The outputs is: I tried to do it using only one for loop. I got this error: I don’t know if I can do it or not. please help
How to subtract 1d array from 2d array’s rows in Numpy
What I want to do is to subtract 1d array from other 2d array’s rows. I found, in some case, result was wrong and confused me. Below code worked good as I wanted. Then I got following as expected. However, when I change the array “lstave” to [1, 2, 3, 4, 5] and subtract, I got following. I cannot understand
Can’t write xlsx file to another folder
Please help me, the programmer who made this software is gone and now I’m in trouble: the program opens an xlsx file, inserts some data inside and saves it with another name, I need this file to be saved in a specific directory, can anyone help me? Thank you! Answer In wb.save (filename = self.filename) you can provide any path
How to async handle callback from keyboard hotkeys?
Need to register global hotkeys. For example, f4 and f8. With keyboard library while first callback didn’t return, the next won’t call. Another words, logs like this But I want to like this Demo code I tried to use asyncio, but nothing changed Update 1 Keyboard library’s developer gave advise to use call_later function that create new thread for each
create new column based on weekly change, based on ID
I have the above data for 1 month and I want to create a new column delta_rank_7 which tells me the change in rank in last 7 days for each id (NaNs for 2021-06-01 to 2021-06-07) I can do something like mentioned here Calculating difference between two rows in Python / Pandas but I have multiple entries for each date
Arranging call data from salesforce in 15 minute intervals
I am new in python and pandas and also in stackoverflow so I apologize for any mistakes I make in advance. I have this dataframe output is and my desired outcome is to have something like in below I have this code from another topic link But it does not take “interval_start” into consideration, I need to check first if
REST API: How to prevent “An existing connection was forcibly closed by the remote host”
Following this thread, https://stackoverflow.com/a/2582070/6534818, I am wondering if there is any room for improvement to my REST API query that would limit the frequency to which I receive the following error: “An existing connection was forcibly closed by the remote host”. The thread suggests, as one possibility, that the query is malformed. My general setup for a query to Azure
matplotlib.pyplot.clim counterpart in pyqtgraph
I want to apply a colormap (“hot”) only to a certain range of values of an image. I already know this functionality from matplotlib.pyplot.clim where you have to specify a minimum and a maximum value for the scaling. As I understood it, you should use setLevels([min,max]) for this. I have included a minimal example which shows that both representations are
Replace cv2.warpPerspective for big images
I use python OpenCV to register images, and once I’ve found the homography matrix H, I use cv2.warpPerspective to compute final the transformation. However, it seems that cv2.warpPerspective is limited to short encoding for performance purposes, see here. I didn’t some test, and indeed the limit of image dimension is 32767 pixels so 2^15, which makes sense with the explanation