TIP TO UNDERSTAND EASILY

Question

Look at dictionaries just like a reference dictionary. The key is like the word and the value is the meaning.
so, we could have our mini English dictionary
>>> myEngDict = {
0: "The first entry of a decimal number system",
1: "The second number",
4: "The square of 2"
}
Now you might want to add the meaning of 2 because someone might not understand what 2 used in defining 4 is. So
>>> myEngDict[2] = "The this number in the decimal number system"
so our new dictionary says:
>>> myEngDict
{
2: "The this number in the decimal number system",
0: "The first entry of a decimal number system",
1: "The second number",
4: "The square of 2"
}
Suppose you want to make definition of 4 simpler. to make it easier:
>>> myEngDict[4] = "The fifth entry in the decimal number system"
That will edit the value for key 4.

Now let a user use our dictionary:
they want to know the meaning of 1
>>> myEngDict[1]
"The second number",
What if they look for a number we don't have?
They will get a KeyError to show that that we don't have that word in our dictionary.
so we can now understand that keys are the "words" in our dictionary and values are the "meanings" of those words.

Comments, questions welcomed.

Answer 1

welcome.

Answer 2

Much appreciated. Very good examples. Thanks mate!

Answer 3

good,easy and helpful

Answer 4

Appreciate It Very Much... Thanks For Sharing

Answer 5

thx

Answer 6

Thank you. Great explanation.
Have any more Tips. I would love to have them.
[e-mail]

Answer 7

Very good example. You could also use a phone book for example, where the number is linked to a name.

Answer 8

Good explanation

Answer 9

thanks

Answer 10

thanks for a nice try to explain. indeed, dictionaries were implemented in Python to process human languages easily.

Answer 11

Interesting

Answer 12

thanks,good example

Answer 13

hi all

Answer 14

Thnx