We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
It's also an old Perl trick. If you just performed the input command without assigning the data to anything, it was still available in the $_ variable by default.
List Comprehensions
You are viewing a single comment's thread. Return to all comments →
_ is used to signify that even though something is being returned, we don't plan to use that variable any where.
gives the following error in above code in python 2.7.13 : at 0x7f60c947e910>
You need to put an additional [] in addition to [a,b,c]. Because the output that you want is are lists within a list.
It's also an old Perl trick. If you just performed the input command without assigning the data to anything, it was still available in the $_ variable by default.