Python dictionaries tutorial in less than 10 minutes

sure! here's a quick tutorial on python dictionaries:

### what are python dictionaries?
- python dictionaries are a collection of key-value pairs.
- each key is unique and maps to a corresponding value.
- dictionaries are unordered, meaning the order of items is not guaranteed.

### creating a dictionary:

### accessing values:

### adding or updating items:

### removing items:

### looping through a dictionary:

### dictionary methods:
- `keys()`: returns a view of all keys in the dictionary.
- `values()`: returns a view of all values in the dictionary.
- `items()`: returns a view of all key-value pairs in the dictionary.

### checking membership:

### dictionary comprehension:

### nested dictionaries:

### conclusion:
- python dictionaries are versatile data structures for storing key-value pairs.
- they are widely used for mapping, caching, and organizing data efficiently.

feel free to ask if you have any questions or need more examples!

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