Return a default value if a dictionary key is not available
I need a way to get a dictionary value if its key exists, or simply return None, if it does not.
key
How to get a random value from dictionary?
How can I get a random pair from a dict? I’m making a game where you need to guess a capital of a country and I need questions to appear randomly.
Dictionary: Get list of values for list of keys
Is there a built-in/quick way to use a list of keys to a dictionary to get a list of corresponding items?
How to sort a list with two keys but one in reverse order?
I was wondering what would be a Pythonic way of sorting a list of tuples by two keys whereby sorting with one (and only one) key would be in a reverse order and sorting with the the other would be case insensitive.
More specifically, I have a list containing tuples like:
Python json parser allow duplicate keys
I need to parse a json file which unfortunately for me, does not follow the prototype. I have two issues with the data, but i’ve already found a workaround for it so i’ll just mention it at the end, maybe someone can help there as well.
What is key=lambda
While using some built-in functions like sorted, sum…
I noticed the usage of key=lambda
Python method for reading keypress?
I’m new to Python, and I just made a game and a menu in Python.
Question is, that using (raw_)input() requires me to press enter after every keypress, I’d like to make it so that pressing down-arrow will instantly select the next menu item, or move down in the game. At the moment, it requires me to like type “down” and then hit enter. I also did quite a lot of research, but I would prefer not to download huge modules (e.g. pygame) just to achieve a single keyDown() method. So are there any easier ways, which I just couldn’t find?
How to print a dictionary’s key?
I would like to print a specific Python dictionary key:
How to determine if object is a valid key-value pair in PySpark
If I have a rdd, how do I understand the data is in key:value format? is there a way to find the same – something like type(object) tells me an object’s type. I tried print type(rdd.take(1)), but it just says <type ‘list’>. Let’s say I have a data like (x,1),(x,2),(y,1),(y,3) and I use groupByKey and … Read more
switching keys and values in a dictionary in python
Say I have a dictionary like so: my_dict = {2:3, 5:6, 8:9} Is there a way that I can switch the keys and values to get: {3:2, 6:5, 9:8} 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. So please … Read more