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Which one's a better way of doing list comprehension in python (in terms of computation time &a… Read more Function Inside List Comprehension - Is It Evaluated Multiple Times

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

Does someone know why pandas/numpy map is slower then list comprehension? I thought I could optimiz… Read more Why Is Pandas Map Slower Than List Comprehension

I have a list: f_array=['1000,1','100,10','100,-10'] I am trying to sum up… Read more Two For Loops In List Comprehension Python

I'm trying to improve the speed of some python code a bit and therefore trying to move a standa… Read more For Loop To List Comprehension Or Map In Python

According to http://docs.python.org/2/library/itertools.html#itertools.product the following functi… Read more How Do I Convert Python's Itertools.product Library From A List Comprehension To Normal For Loops?

Given the following list: [ ('A', '', Decimal('4.0000000000'), 1330, da… Read more Python - Group By And Sum A List Of Tuples

I have this: >>> sum( i*i for i in xrange(5)) My question is, in this case am I passing a… Read more How To Identify A Generator Vs List Comprehension

I have a class named StrucData in subfile.py class StrucData: def __init__(self, name): self.… Read more List Comprehensions With Class Objects

I'm trying to tweak an application that is suffering in speed department. Because of that, I… Read more Using List Comprehension Instead Of For Loop When Working With Django Querysets

matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] squared = [[x**2 for x in row] for row in matrix] print(… Read more Python List Comprehension Execution Order

Given list a = [1, 2, 2, 3] and its sublist b = [1, 2] find a list complementing b in such a way t… Read more Create A Complement Of List Preserving Duplicate Values

I am getting a syntax error when executing the following code. I want to print within a list compr… Read more Printing Within List Comprehension In Python

I need to plot a lot of data samples, each stored in a list of integers. I want to create a list fr… Read more List Comprehension To Merge Various Lists In Python

I have a list of about 90k elements (about 670 unique). I would like to get the indexes for the fir… Read more Get Indexes For First Occurrence Of Each Element In A List?

As part of another experience i encountered a problem in the list comprehension. In order to put si… Read more Why The List Comprehension Variable Is Accessible After The Operation Is Done?

PEP 448 -- Additional Unpacking Generalizations allowed: >>> LOL = [[1, 2], ['three… Read more Unpacking Generalizations

Is there a reason why looping through an implicit tuple in a for loop is okay, but when you do it i… Read more Why Can You Loop Through An Implicit Tuple In A For Loop, But Not A Comprehension In Python?

Playing around with iPython, I was surprised to discover that given a list f of objects each suppor… Read more In Python, Whats The Difference Between A List Comprehension With A List And A Tuple?

I am new to python, and I was wondering if I could generate the fibonacci series using python's… Read more How Can I Create The Fibonacci Series Using A List Comprehension?