Properties of Dictionary Keys, Basic Computer Science

Dictionary values encompass no limitations. They can be any random Python object, moreover standard objects or user-defined objects. Though, same is not true for the keys.
There are two significant points to remember concerning dictionary keys:
(a) More than one entry per key not permitted. Which means no duplicate key is permitted. When duplicate keys occured during assignment, the last assignment wins.
(b) Keys must be unchallengeable. Which means you can use strings, numbers, or tuples as dictionary keys but something similar to [''key''] is not permitted.
Posted Date: 5/5/2012 4:29:15 AM | Location : United States

Related Discussions:- Properties of Dictionary Keys, Assignment Help, Ask Question on Properties of Dictionary Keys, Get Answer, Expert's Help, Properties of Dictionary Keys Discussions

Write discussion on Properties of Dictionary Keys
Your posts are moderated
Related Questions
My son has a project assignment he has problem with. The only thing is, it is due in 20 mins. can someone be able to help him? if so, how much is the fee?

Question (a) A dairy wants to determine the quantity of butter it should produce to meet the demand. Past records have shown the following demand pattern:

Question 1 Explain the role of object oriented designers in developing a software system Question 2 What are the four essential elements of design patterns? Explain Question 3

Sets of individual statements making up a single code block are known as suites in Python. Composite or complex statements for example if, def while and class are those which neces

What are advantages of totem pole over passive pull up circuit ?


Question 1 Explain synchronous and asynchronous Data Replication Question 2 Write a short note on Access Time, Latency, Transfer Time, and Streaming Tape Question 3

Digital Video Disks: DVD stands for Digital Video Disks or Digital Versatile Disks. A DVD stores much more data than a CD-ROM. Its capacities are 4.7GB, 8.5GB, and 20GB etc. T

how can i hack a server

The 7489 TTL Ram Device: The 7489 TTL Ram package has 64 memory cells, each cell is capable of holding a single bit of data.  The cells are organised into locations, and each l