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 c…
Tag: iteration
How to iterate through a nested for loop in pandas dataframe?
I am attempting to iterate through a Hacker News dataset and was trying to create 3 categories (i.e types of posts) found on the HN forum viz, ask_posts, show_posts and other_posts. In short, I am trying to find out the average number of comments per posts per category(described below). The results respective…
How do I iterate through an entire directory and select only one class from a multi-class file in Python?
I could use some help iterating through a directory with multi-class files. Each sample contains two classes (for example, the first sample in my database is 1001, and this file includes 1001.dat and 1001.hea), and I want to iterate through my directory and access all .dat files separately from .hea files. Ri…
How do i loop over a geometric sequence. i need to loop some function over 1, 2, 4, 8, 16
My code is This is what the program looks like Answer With generators: Output:
knight tour iteration dead end
I am trying to implement knight tour using iteration method. I have already wrote a program using recursion and its working fine, now instead of recursion I am using iteration method with stack to implement knight tour, I have wrote the below code. and here I can not backtrack when I reached to a dead end, co…
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 fold…
How to repeat each of a Python list’s elements n times with itertools only?
I have a list with numbers: numbers = [1, 2, 3, 4]. I would like to have a list where they repeat n times like so (for n = 3): [1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4]. The problem is that I would like to only use itertools for this, since I am very constrained
Iterate over list selecting multiple elements at a time in Python
I have a list, from which I would like to iterate over slices of a certain length, overlapping each other by the largest amount possible, for example: In other words, is there a shorthand for zip(seq, seq[1:], seq[2:]) where you can specify the length of each sub-sequence? Answer [seq[i:i+3] for i in range(le…
Changing the value of range during iteration in Python
Above the is the code which prints numbers from 0-7 if I use just print i in the for loop. I want to understand the above code how it is working, and is there any way we can update the value of variable used in range(variable) so it iterates differently. Also why it always iterates up to the initial k
Iterating over two lists one after another
I have two lists list1 and list2 of numbers, and I want to iterate over them with the same instructions. Like this: But that feels redundant. I know I can write for item in list1 + list2:, but it has a price of running-time. Is there a way do that without loose time? Answer This can be done with itertools.cha…