Python tutorial 30 dictionaries and while loops

sure! here is an informative tutorial on python dictionaries and while loops:

dictionaries in python are unordered collections of key-value pairs. each key is unique and maps to a specific value. dictionaries are defined using curly braces {} and key-value pairs are separated by a colon :.

here's an example of a dictionary in python:

you can access values in a dictionary using their keys like this:

while loops in python are used to repeatedly execute a block of code as long as a condition is true. the syntax for a while loop is:

here's an example of a while loop that prints numbers from 1 to 5:

in this example, the condition `num = 5` is checked before each iteration. the loop continues to execute as long as the condition is true.

combining dictionaries and while loops, you can iterate over key-value pairs in a dictionary using a while loop like this:

in this example, we first convert the dictionary keys to a list so that we can access them by index. then, we iterate over the keys using a while loop and print out each key-value pair.

i hope you find this tutorial helpful! let me know if you have any questions or need further clarification.

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