Python while loops for loops python tutorial for beginners

sure! let’s dive into python loops, specifically `while` loops and `for` loops. both of these constructs allow you to execute a block of code multiple times, but they do so in different ways.

### 1. while loops

a `while` loop repeatedly executes a block of code as long as a specified condition is `true`. here’s the basic syntax:

#### example of a while loop

let’s say you want to print numbers from 1 to 5 using a `while` loop:

**output:**

### 2. for loops

a `for` loop is used to iterate over a sequence (like a list, tuple, dictionary, set, or string). here’s the basic syntax:

#### example of a for loop

let’s say you want to print each character in a string using a `for` loop:

**output:**

### 3. using for loops with the range() function

the `range()` function is commonly used with `for` loops when you want to repeat an action a specific number of times. the syntax is:

- `start`: the starting value (inclusive).
- `stop`: the end value (exclusive).
- `step`: the increment (default is 1).

#### example of using range()

here’s how you can use it to print numbers from 1 to 5:

**output:**

### 4. breaking out of loops

you can use the `break` statement to exit a loop prematurely.

#### example of break in a while loop

**output:**

### 5. looping with conditions

you can also use `continue` to skip the current iteration and move to the next one.

#### example of continue in a for loop

**output:**

### conclusion

loops are essential in programming for executing code multiple times. `while` loops are great for repeating until a condition changes, while `for` loops are excellent for iterating over sequences. with `break` and `continue`, you can control the flow of your loops even further.

### practice exercise

try creating your own loops with the following tasks:
1. use a `while` loop to print all even numbers from 2 to 20.
2. use a `for` loop to iterate through a list of fruits and print each fruit.

happy coding!

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