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Creating a list with list comprehensions

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Shy Skunk answered on October 27, 2021 Popularity 9/10 Helpfulness 4/10

answer Creating a list with list comprehensions

related List Comprehension generate a list

related Writing a List Comprehension

Creating a list with list comprehensions

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# construct a basic list using range() and list comprehensions
# syntax
# [ expression for item in list ]
digits = [x for x in range(10)]

print(digits)

Popularity 9/10 Helpfulness 4/10 Language python

Source: www.pythonforbeginners.com

Tags: list python

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Contributed on Oct 27 2021

Shy Skunk

0 Answers Avg Quality 2/10

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List Comprehension generate a list

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# generate a list
li = [ i+1 for i in [1,2,3] ]
print(li)
# [2, 3, 4]

Popularity 6/10 Helpfulness 3/10 Language python

Source: xahlee.info

Tags: python generate list-comprehension list li

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Contributed on Dec 13 2021

Sore Sloth

0 Answers Avg Quality 2/10

Writing a List Comprehension

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# Define a generic 1D list of constants
my_list = [2, 5, -4, 6]

# Duplicate a 1D list of constants
[item for item in my_list]

# Duplicate and scale a 1D list of constants
[2 * item for item in my_list]

# Duplicate and filter out non-negatives from 1D list of constants
[item for item in my_list if item < 0]

# Duplicate, filter, and scale a 1D list of constants
[2 * item for item in my_list if item < 0]

# Generate all possible pairs from two lists
[(a, b) for a in (1, 3, 5) for b in (2, 4, 6)]

# Redefine list of contents to be 2D
my_list = [[1, 2], [3, 4]]

# Duplicate a 2D list
[[item for item in sub_list] for sub_list in my_list]

# Duplicate an n-dimensional list
def deep_copy(to_copy): 
  if type(to_copy) is list: 
    return [deep_copy(item) for item in to_copy] 
  else: 
    return to_copy

Popularity 4/10 Helpfulness 1/10 Language python

Source: dev.to

Tags: list-comprehension python

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Contributed on Sep 30 2022

David K.

0 Answers Avg Quality 2/10

Creating a list with list comprehensions

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Creating a list with list comprehensions

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List Comprehension generate a list

Writing a List Comprehension

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