I have two list such as. First list contains some additional string in the elements but I want to find the match with or without converting it to integer from the second list. output req: Tried: Answer If you only want to compare the number part you have to do some conversion. Start with l2 is now [1, 4]. Now
Tag: list-comprehension
How to compare a value to a list of pairs in a list comprehension?
I need to create a list that is n long where each item is a Boolean. The item will only be True when x is in the range of one or more pairs of integers. For example, my current code is as follows: My issue is that the number of pairs will vary, so only a and b might exist
How to find the values of a key in a nested list of dictionaries in Python
This is my data structure. I have 3000 instances of ‘product’ within the ‘clothes list’. Each contains another list of dictionaries that stores the reviews. I am attempting to iterate through all the reviews in the dictionary and return all the reviews written by a particular username. My Two attempts below output the same error. The Error TypeError: list indices
How to fix list comprehension ‘bitwise_and’ error and optimize for-loop?
I have the following for loop below, but I want to make this into a more computationally efficient variant. I thought I could do that with list comprehension, but this is giving me the following error: TypeError: ufunc ‘bitwise_and’ not supported for the input types, and the inputs could not be safely coerced to any supported types according to the
One liner for True or False for loop in Python
Almost every time I solve an exercise of Codewars and glance at others solutions I see that some guys do my 15 lines code in 2 or 3 lines. So, I have started to learn lists and sets comprehensions and would try other tricks. For now my question is about this code: Is it possible to write it in one
how to combine three lists comprehension into one using only one for loop?
I have a list in range (1 to 31). The final list is l = [x, y, z] You can see my code, it is work fine using three for loops: The outputs is: I tried to do it using only one for loop. I got this error: I don’t know if I can do it or not. please help
Python List Comprehension to Delete Dict in List
I have a json file formatted as above and I am trying to have a function delete an entry based on the username input from a user. I want the file to then be overwritten with the entry removed. I have tried this: It partially works as everything in the Credentials section looks normal, but it appends a strange copied
Getting all subitems from a list of items with list comprehension
I have a dataclass foo which has a member item_li: list[item], item is a dataclass which has a member sub_item_li: list[sub_item] I want to return list[sub_item] from a method of foo. I am primarily looking for a solution with list comprehension. I got it already working with the following list comprehension which I split into 2 lines: Is there a
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 list,
Delete columns of a nested list with list comprehension
How would I write this for loop as a list comprehention? This is the list: I want to delete row 4 and 5 I did try this but it just gives me a syntax error Any idea how to do that with a list comprehension? Answer You can slice the list upto index 3: If that is what you want.