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I'm new to python and I wanted to try to use list comprehension but outcome I get is None. prin… Read more List Comprehension Output Is None

I am currently learning the concept of list comprehensions in python. However, I have huge problems… Read more How Extract Items Of Sublists In A One-line-comprehension In Python?

When reading the official tutorial, I encountered this example: >>> vec = [[1,2,3], [4,5,6… Read more Understanding List Comprehensions In Python

Essentially these are the same functions - except list comprehension uses sum instead of x=0; x+= s… Read more Python: Why Is List Comprehension Slower Than For Loop

There must be a simpler, more pythonic way of doing this. Given this list of pairs: pp = [('a&… Read more Python: Find Sequential Change In One Member Of List Pairs, Report Other

I have a Dataframe Like: Time Frq_1 Seq_1 Frq_2 Seq_2 Frq_3 Seq_3 12:43:0… Read more Find Max Frequency For Every Sequence_id

I was given the function: x**2 - 4*x + 6 and the task was to find the minimum integer values x bet… Read more Where To Put The If-condition Inside A List Comprehension?

I have an array of towns and their neighbours. I want to get a set all the pairs of towns that have… Read more Given Edges, How Can Find Routes That Consists Of Two Edges In A Vectorised Way?

Consider the following snippet: def bar(): return 1 print([bar() for _ in range(5)]) It gives … Read more List Comprehension In Exec With Empty Locals: Nameerror

So a few days ago I needed a particular list comprehension in this thread: Selecting a subset of in… Read more Numpy Version Of This Particular List Comprehension

The objective is to create a list comprehension that outputted two values. The for loops look like … Read more Getting Error: "not Enough Values To Unpack" When Returning Two Outputs Using List Comprehension With Python

I have a dictionary: XY_dict = {1: [(12, 55),(13, 55)], 2: [(14, 55),(15, 57)], 3: [(14, 55),(15, 5… Read more Avoid Inserting Duplicates Into Python List With Comprehension

I need to append all elements in list_ to a string; at the end I need to add a suffix. A dot '.… Read more Join With A Separator Added At The End When Not Empty

This is my sample dictionary in Python 2.7: sample = {'T1': {'P1': 20, 'P2&#… Read more Sum Nested Key Values Of Dict

I am using a library (pymatgen) in which a enum Orbital is defined. Each element can be defined as … Read more Syntax Error From List Comprehension With A Conditional

I recently posted a question using a lambda function and in a reply someone had mentioned lambda is… Read more Lambda Versus List Comprehension Performance

I'm looking for list-comprehension method or similar in Numpy to eliminate use of a for-loop eg… Read more Python List Comprehension For Numpy

Possible Duplicate: Only index needed: enumerate or (x)range? Which of these would be considered … Read more Range(len(list)) Or Enumerate(list)?

Here is my pymongo code: client = MongoClient('localhost', 27017) db = client['somedb&#… Read more List Comprehension With Cursor From Pymongo

This thought just came to my mind. Say for whatever reason you wanted to get the unique elements of… Read more Python: Referring To A List Comprehension In The List Comprehension Itself?