Python |将元组列表转换为列表
原文:https://www . geesforgeks . org/python-convert-list-of-tuples-to-list/
给定一个元组列表，编写一个 Python 程序将其转换为列表。
示例:
Input: [(11, 20), (13, 40), (55, 16)]
Output:[11, 20, 13, 40, 55, 16]
Input: [('Geeks', 2), ('For', 4), ('geek', '6')]
Output: ['Geeks', 2, 'For', 4, 'geek', '6']
下面是将元组列表转换为列表的方法。
方法#1 : 使用列表理解
# Python code to convert list of tuples into list
# List of tuple initialization
lt = [('Geeks', 2), ('For', 4), ('geek', '6')]
# using list comprehension
out = [item for t in lt for item in t]
# printing output
print(out)
Output:
['Geeks', 2, 'For', 4, 'geek', '6']
方法 2 : 使用 itertools
# Python code to convert list of tuple into list
# Importing
import itertools
# List of tuple initialization
tuple = [(1, 2), (3, 4), (5, 6)]
# Using itertools
out = list(itertools.chain(*tuple))
# printing output
print(out)
Output:
[1, 2, 3, 4, 5, 6]
方法#3 : 使用迭代
# Python code to convert list of tuple into list
# List of tuple initialization
tup = [(1, 2), (3, 4), (5, 6)]
# result list initialization
result = []
for t in tup:
for x in t:
result.append(x)
# printing output
print(result)
Output:
[1, 2, 3, 4, 5, 6]
方法#4 : 使用sum
# Python code to convert list of tuple into list
# List of tuple initialization
tup = [(1, 2), (3, 4), (5, 6)]
# using sum function()
out = list(sum(tup, ()))
# printing output
print(out)
Output:
[1, 2, 3, 4, 5, 6]
方法 5 : 使用运算符和减少
# Python code to convert list of tuple into list
import operator
from functools import reduce
# List of tuple initialization
tup = [(1, 2), (3, 4), (5, 6)]
# printing output
print(list(reduce(operator.concat, tup)))
Output:
[1, 2, 3, 4, 5, 6]
方法 6 : 使用lambda
# Python code to convert list of tuple into list
# List of tuple initialization
tup = [(1, 2), (3, 4), (5, 6)]
# Using map for 0 index
b = map(lambda x: x[0], tup)
# Using map for 1 index
c = map(lambda x: x[1], tup)
# converting to list
b = list(b)
c = list(c)
# Combining output
out = b + c
# printing output
print(out)
Output:
[1, 3, 5, 2, 4, 6]
版权属于：月萌API www.moonapi.com，转载请注明出处
