Diving Into Python: Chapter 12

• Values
• Keys

Explanation: Consider the preceding example here: The preceding description clearly states what the keys are, the values and dictionary names in the example shown above. I hope now you guys are a bit clear. Creating a Dictionary A simple dictionary can be created in the following two ways. Using Multiline statements I already discussed multiline statements in my previous article, so for a better understanding, I suggest you guys go through the previous parts. Example Using "{}" brackets

I already explained that these types of statements use braces in my previous article, so for a better understanding, I suggest you guys go through the previous parts. Example Accessing Values in Dictionary: For accessing elements in the dictionary, you don't need to do any herculean task. Just go through the approach that we used to do in Lists / Tuples in Python. We need to use one and only those square brackets "[]" along with the key or index. Let's have a look. Example

# Accessing Dictionary Output

Operations | Dictionary

Dictionary | Updating: You can do updates in the dictionary in one of the following ways:

• Adding a new element
• Updating a new key-value
• Modifying an existing entry
• Deleting an existing entry

# Updating a New Entry # Showing New Entry Output Dictionary | Deletes: In Python, you either delete a single element or all the dictionary elements. To do delete in a dictionary, we use a del statement. Example # Deletion in Dictionary Output

Explanation As you can see, after deletion there will be no elements in the dictionary. That's why it's giving an error. Built-in Tuple functions Here are some built-in tuple functions. Dictionary | Compare This built-in function is used for comparing two dictionaries. It compares them in terms of their elements. Example Output -1, 1 Dictionary | Length As the name of this built-in function suggests, it is used for getting the length of any tuple value from a dictionary. Example Output: 9 Guidelines from my side

• Do as much as code you can.
• Code anything you want, the best way to learn.
• Don't just study things, try to learn them.
• Work on your Concepts.
• Work on the fundamentals of any technology or stuff you want to learn