strawberry | favorite fruit.A fast webApp framwork | Runtime Evironment library

This is part of my doubly linked list deque python code.

The 'appendleft' function written almost similar to the 'append' function is normally output. Why is the last 'append('apple')' code not output normally in the 'Group_of_append' function?

I have two examples of foldLeft that I cannot really grasp the logic.

First example:

I cannot find anywhere how to convert a pandas dataframe to type datasets.dataset_dict.DatasetDict, for optimal use in a BERT workflow with a huggingface model. Take these simple dataframes, for example.

I'm still young to coding and cannot figure out better functions or results to some tasks by myself very often. I have a question on tracking the original string after using str_extract_all for a specific pattern.

Here is an example data called "fruit".

I used str_extract_all(fruit, "(.)\\1") to extract duplicated consonants, and get "pp", "rr", "pp", "ll", "pp".

Also tracked the original string (of those extracted results) by str_subset(fruit, "(.)\\1"). Here's what I get.

However, I want to know where "each" extracted result is from. Therefore, using str_subset cannot capture those results which are from the same string. The following dataframe is what I expect to gain.

I'm not sure if I explain my question clearly. Any feedbacks and ideas will be appreciate.

Given the user table as follow:

In my hypothetical example, people order ice-cream at a stand and each time an order is placed, the month the order was made and the number of orders placed is recorded. Each row represents a unique person who placed the order. For each flavor of ice-cream, I am curious to know the cumulative orders placed over the various months. For instance if a total of 3 Vanilla orders were placed in April and 4 in May, the graph should show one data point at 3 for April and one at 7 for May.

The issue I am running into is each row is being plotted separately (so there would be 3 separate points at April as opposed to just 1).

My secondary issue is that my dates are not in chronological order on my graph. I thought converting the Month column to Date format would fix this but it doesn't seem to.

Here is my code below:

I am new to Python, and I am trying to use Python to query a Microsoft SQL Server database. The data is returned in this format:

(('orange,apple,coconut',), ('lettuce,carrot,celery',), ('orange,lemon,strawberry',))

What I am trying to do is check to find a match, to see if some data from another data table exists in that data from SQL Server.

When I try to use the "in" to check, it does not work for me. I thought if I could convert the data (a tuple of tuples) into a list, then I could more easily search and match. But that doesn't work because there are some brackets around each list element. At least, that is the what I think because, if I manually recreate the list without the extra brackets, then I can search successfully.

I am wondering if there is a way to remove that extra bracket. Or, maybe there is a better approach. I have read several posts here and other articles, and so far, I have not found an approach.

Here is what I have tried. As you can see, the final one works, but that is what i have created manually.

I'm trying to create an object in a certain structure from data that I have. From:

I'm trying to create a type that accepts any combination of certain values separated by spaces. The order doesn't matter. I can't define each combination using string literals because the number of acceptable values is very long. How can I achieve this?