Why is my attempt to iterate through a list of lists and update dictionary values resulting in unchanged dictionary?

I want to iterate through a list of lists and if an instance in the list matches a key in a dictionary, add 1 to that dictionary key value. However, when I execute my code it returns the dictionary …

When creating a function with summation in it, how do you add terms to the summation? (Python)

I need to find a way to add new terms to the function: f(x) = 4sin(x)/pi such that the new function looks like this: f(x) = 4sin(x)/pi + 4sin(3x)/3pi + 4sin(5x)/5pi + 4sin(7x)/7pi … up to 201. I was …

The iteration loop is not working properly for API

There is an API that only produces one hundred results per page. I am trying to make a while loop so that it goes through all pages and takes results from all pages, but it does not work properly. …

Error re.findall() when used in a iteration over a list from pandas dataframe

I converted a column to list from a pandas df: subsectors = df[‘subsectors’].tolist() I wanted to separate this kind of strings: ‘BuyMeADrink’ into ‘Buy Me A Drink’ So I used one of the following:…

openpyxl and iteration + alter specific cells question/seeking resource

Very new to python here. Need some help with using openpyxl, please! This is for a personal project on my self-learning journey. I’m looking for a resource to show me how to do the following thing in pip3 openpyxl: I have a class that has a variable which acts as a unique identifier. This is the first column in my excel workbook. What I want to do: I want to add new IDs to the spreadsheet. This means, first, I need to iterate over only the first column and make sure the new unique identifier isn’t already present. I believe

Python how to find the minimum number of moves for a directory iteration – crawler

I’m working on a Python(3) program in which I have to return the number of moves for a directory iteration by using the input as a list of multiple iterations denotes various actions like: ../ denotes move to the parent folder of the current folder. ./ remain in the same folder x/ move to the child folder named x Actually, I have to write a Python’s function to return an integer which shows the minimum number of steps to move to the main directory from the current folder. how can I achieve that? so, here’s an example: Input: Output: Explanation:

Python regex iteration for all combinations

I am new to regex. I am using Python 2.7 and BeautifulSoup4. I want to iterate over a particular regular expression. Required ouput : length : 5 , expression : [a-zA-Z0-9!&#%@] It should …

Getting next element while cycling through a list

li = [0, 1, 2, 3] running = True while running: for elem in li: thiselem = elem nextelem = li[li.index(elem)+1] When this reaches the last element, an IndexError is raised (as is …