Properties of Dictionary Keys, Basic Computer Science

Assignment Help:
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.

Related Discussions:- Properties of Dictionary Keys

C++, whats the out put of int main(){ int n=310; funcone(n); functwo(&n); ...

whats the out put of int main(){ int n=310; funcone(n); functwo(&n); cout return 0; } void funcone(intn) n=240; } void func two(intn*) { n=120; }

What is the definition of macro?, Definition of the macro A macro is a col...

Definition of the macro A macro is a collection of repetitive instructions in a program which are codified only one time and can be used as many times as required. The major differ

Bootstrap loader, Bootstrap loader: The critical programs are loaded i...

Bootstrap loader: The critical programs are loaded into memory by the bootstrap loader at start-up time and will remain resident as long as the computer is running. The bootst

What is Load and store the assembly programs?, It would not emerge practica...

It would not emerge practical to type an entire program each time it is required, and to avoid this it is possible to store a program on the disk, with the vast advantage that by b

System software, SYSTEMS SOFTWARE Systems Software generally is ...

SYSTEMS SOFTWARE Systems Software generally is the software which control the computers and other peripherals. Ex: MS DOS, Windows 95, Unix, NetWare and Windows NT et

Micro-computer, explain the function of each block in the block diagram of ...

explain the function of each block in the block diagram of micro-computer

RMO CSMS marketing subsystem, I need to write a narrative n overview of the...

I need to write a narrative n overview of the diagram and an analysis of the actors

Memory, why do computer have internal memory as a part of cpu and the inter...

why do computer have internal memory as a part of cpu and the internal bulk memory seprately?

Pipelining concept, The easiest way to approach pipelining is to regard as...

The easiest way to approach pipelining is to regard as the three stage fetch, decode and execute instruction execution cycle outlined earlier. There are times during each of these

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd