I want to create a bar chart based on the first column in a two-column groupby table. I’ve summed up my dataframe by applying groupby to create the table I want. My groupby table currently only has two columns, the first being the categories, and the second being the count of those categories from my da…
How can I efficiently find distances from each value to the next lower/higher value?
I’ll tell you what structures I am using, please feel free to recommend any changes like numpy arrays or something. Anyways what I have is a list of 5 million sequential entries that correspond to a stock price. I then have 2 more lists, each of these is the same length – 5 million entries. These …
Select a column without “losing” a dimension
Suppose I execute the following code The shape of X[:,1] would be [100,]. That is, X[:,1].shape would yield [100,]. If I want to select the second column of X and want the resulting array to have shape [100,1], what should I do? I looked at tf.slice but I’m not sure if it’ helpful. Answer Maybe ju…
What is this Scrapy error: ReactorNotRestartable?
I do not understand why my spider wont run. I tested the css selector separately, so I do not think it is the parsing method. Traceback message: ReactorNotRestartable: Answer urls = “https://www.espn.com/college-football/team/_/id/52” for url in urls: You’re going through the characters of &…
Calculate average the letter length of a phrase with one function
I did this programming to calculate the average letters of a phrase. Do you think this program is responsible for all texts? And do you have a better offer? Thanks Answer Alternatively, this program can be simplified to this function: Your original program just make it overly complex. Running it:
“422 Unprocessable Entity” error when making POST request with both attributes and key using FastAPI
I have a file called main.py as follows: Now, if I run the code for the test, saved in the file test_main.py I don’t get the desired result, that is What is the mistake? Answer Let’s start by explaining what you are doing wrong. FastAPI’s TestClient is just a re-export of Starlette’s T…
How did print(*a, a.pop(0)) change?
This code: Python 3.8 prints 2 3 1 (does the pop before unpacking). Python 3.9 prints 1 2 3 1 (does the pop after unpacking). What caused the change? I didn’t find it in the changelog. Edit: Not just in function calls but also for example in a list display: Prints [2, 3, 1] vs [1, 2, 3, 1]. And
Text is not printed when using selenium
This is the code I have written so far: This doesn’t print out the price, please help. This is what the output terminal looks like. I want to get this price: Answer The value of the price is blank. You should replace the tailing span[1] with span[2] in your xpath Here is the code – Output –
How to display a model data dynamically in Html?
I have a model and in a function this model is updating. I want to display this model’s data dynamically. So, new values should display without refreshing the page. How can I do it? models.py views.py functions.py setup_wizard.html All my function works fine. When I looking the MyLongProcess from Django…
Why is Scrapy not following all rules / running all callbacks?
I have two spiders inheriting from a parent spider class as follows: The parse_tournament_page callback for the Rule in first spider works fine. However, the second spider only runs the parse_tournament callback from the first Rule despite the fact that the second Rule is the same as the first spider and is o…