I have a pandas dataframe From To A B A C D E F F B G B H B I G J G K L L M M N N I want to convert it into multi column hierarchy. The expected hierarchy will look like Level_1 Level_2 Level_3 Level_4 A B G J A B G K A B
What is the difference between normal loops and list comprehension?
The result for line 2 is is something like: Where as the result for the normal for loop is: Why do I get the extra [None, None, None, None] in case of list comprehension? Answer A list comprehension is used to comprehend (Make) a list. It is useful only when making lists. However, here you are not making a li…
How to set a breakpoint inside a custom metric function in keras
I am trying to write my own custom metric functions in keras and I wanted to start with a test function so I implemented a f1_score function using sklearn, next I will need to customize the calculation of the metrics according to my evaluation metrics and therefore I want to set a breakpoint inside the custom…
Ansible get search domain from DNS in Ansible facts [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 1 year ago. Improve this question How ca…
SendMessage only send the *first* character of the string
I am using the following python code to send String to a RAD Studio C++ Builder built application: It is perfectly find the opponent application and SendMessage sends data. My problem: It only sends the 1st character of the string. So instead of: “This is a message to signal…” , it only send…
Why is my function stripping the dir attribute despite it being in my list of allowed attributes?
I am using the bleach package to strip away invalid html. I am puzzled why the dir attribute is being stripped from my string. Is dir not an attribute, or could it just be that the package does not support dir? I have included the entire script, so you can run it for your convenience. Answer If you pass a
Using Pytube to download videos of a playlist of specific length
I am trying to download the videos of a YouTube playlist using the PyTube – library. Since the playlists I need have a few thousand videos I want to add the condition that just videos of the length 10s to 1 hour should be downloaded. So far I can download all videos of a playlist with the following code…
Get the last day of a year
I have a pandas df with a year column. I want to get the last day of that year. For example: 2020 –> 2020/12/31 I tried: but I get this error: “cannot convert the series to <class ‘int’> ” What am I doing wrong? Thanks PS I realized I could just do: but I’m still w…
MATLAB freqz2 equivalent in Python
I’m trying to find a Python library that works equivalently to MATLAB’s freqz2 for image processing, since scipy.signal.freqz only seems to work for 1-D arrays. Answer Found an amazing library for plotting the 3D surface of the 2-D FFT called plotly. I leave here the lines of code I used to emulat…
How to redirect wsl2 display to local windows machine in python
I have a python game that is being run on wl2 and I would like the display to be in windows. I have tried to use the code below in my python program but it just gets stuck because it is not the correct display. I have also checked out this question but it did not seem to be an