Why doesn’t list have safe “get” method like dictionary?
Why doesn’t list have a safe “get” method like dictionary?
list
Add list to set?
Tested on Python 2.6 interpreter:
How do I combine two lists into a dictionary in Python?
I have two lists of the same length: [1,2,3,4] and [a,b,c,d] I want to create a dictionary where I have {1:a, 2:b, 3:c, 4:d} What’s the best way to do this? Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. … Read more
What is the time complexity of popping elements from list in Python?
I wonder what is the time complexity of pop method of list objects in Python (in CPython particulary). Also does the value of N for list.pop(N) affects the complexity?
Finding index of an item closest to the value in a list that’s not entirely sorted
As an example my list is:
Generate a list of datetimes between an interval
Given two datetimes (start_date and end_date), I’d like to generate a list of other datetimes between these two dates, the new datetimes being separated by a variable interval. e.g. every 4 days between 2011-10-10 and 2011-12-12 or every 8 hours between now and tomorrow 19p.m.
Removing elements from a list containing specific characters
I want to remove all elements in a list which contains (or does not contain) a set of specific characters, however I’m running in to problems iterating over the list and removing elements as I go along. Two pretty much equal examples of this is given below. As you can see, if two elements which … Read more
How do I multiply each element in a list by a number?
I have a list:
Does a slicing operation give me a deep or shallow copy?
The official Python docs say that using the slicing operator and assigning in Python makes a shallow copy of the sliced list.
How to sort and remove duplicates from Python list?
Given a list of strings, I want to sort it alphabetically and remove duplicates. I know I can do this: from sets import Set […] myHash = Set(myList) but I don’t know how to retrieve the list members from the hash in alphabetical order. I’m not married to the hash, so any way to accomplish … Read more