Learn python 6 loops how to repeat code execution
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certainly! loops are a fundamental concept in programming that allow you to execute a block of code multiple times without having to write it out repeatedly. in python, there are several types of loops, but the two most common are the `for` loop and the `while` loop.
1. for loop
the `for` loop is used to iterate over a sequence (like a list, tuple, dictionary, set, or string). it allows you to execute a block of code for each item in the sequence.
#### syntax:
#### example:
*output:*
in this example, `range(5)` generates a sequence of numbers from 0 to 4. the `for` loop iterates over each number and prints it.
2. while loop
the `while` loop repeatedly executes a block of code as long as a specified condition is true.
#### syntax:
#### example:
*output:*
in this example, the `while` loop continues to execute as long as `i` is less than 5. it prints the value of `i` and increments it by 1 in each iteration.
3. loop control statements
python provides control statements that can alter the flow of loops:
**break**: exit the loop prematurely.
**continue**: skip the current iteration and move to the next.
**pass**: do nothing; it's a placeholder.
#### example of break:
*output:*
#### example of continue:
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4. nested loops
you can also nest loops, which means you can have a loop inside another loop. this is useful for working with multidimensional data structures.
#### example:
*output:*
5. looping through collections
both `for` and `while` loops can be used to iterate through different types of collections, such as lists, tuples, and dictionaries.
#### example with a list:
*output:*
#### example with a dictionary:
*output:*
summary
loops are a powerful feature in python that allow you to automate repetitive tasks. the `for` loop is useful for iterating over sequences, while the `while` loop is great for executing code until a condition changes. by mastering loops, you can write more ...
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