pythonlist

change all the list element to true in pythonic way

A list with elements :

mylist = [3,7,8,9,2,4,6]

just wanted to change all its value to true 

mylist = [True,True,True,True,True,True,True]

i can do it with for loop.

wanted to do in pythonic way preferably one liner

Solution

  • you can use lambda with map function 

    In [11]: mylist = [3,7,8,9,2,4,6]
#python 2.7
In [12]: mylist = map(lambda x: True,mylist)
#python 3.x
In [12]: mylist = list(map(lambda x: True,mylist))
In [13]: mylist
Out[13]: [True, True, True, True, True, True, True]