Built in functions

 Built in functions

Python provides a wide range of built-in functions that are readily available for use without the need for importing any module. These functions serve a variety of purposes and are crucial for efficient programming. Here are some commonly used built-in functions in Python:

### 1. `print()`

   - Outputs the given message or variable to the standard output (usually the console).

### 2. `input(prompt)`

   - Reads a line from input (usually the user), converting it to a string.

### 3. `type(object)`

   - Returns the type of an object.

### 4. `int(x)`, `float(x)`, `str(x)`, `bool(x)`

   - Converts `x` to an integer, float, string, or boolean, respectively.

### 5. `len(seq)`

   - Returns the number of elements in a sequence (e.g., string, list, tuple).

### 6. `range(start, stop[, step])`

   - Generates a sequence of numbers within a specified range.

### 7. `max(iterable)`, `min(iterable)`

   - Returns the maximum or minimum value in an iterable (e.g., list).

### 8. `sum(iterable)`

   - Returns the sum of all elements in an iterable.

### 9. `abs(x)`

   - Returns the absolute value of `x`.

### 10. `round(number[, ndigits])`

   - Rounds a floating-point number to the specified number of decimal places.

### 11. `sorted(iterable[, key][, reverse])`

   - Returns a sorted list from the specified iterable.

### 12. `all(iterable)`, `any(iterable)`

   - Returns True if all or any element in an iterable is True, respectively.

### 13. `zip(*iterables)`

   - Returns an iterator of tuples, where each tuple contains the i-th element from each of the argument iterables.

### 14. `open(file, mode)`

   - Opens a file and returns a file object for reading, writing, or appending.

### 15. `chr(i)`, `ord(c)`

   - Returns the character corresponding to the Unicode code point `i`, or the Unicode code point for the given character `c`.

### 16. `dir([object])`

   - Returns a list of names in the current local scope or a list of attributes of the specified object.

### 17. `help([object])`

   - Displays information about built-in functions, modules, or objects.

### 18. `eval(expression)`

   - Evaluates a Python expression from a string and returns the result.

These are just a few of the many built-in functions available in Python. They provide essential functionalities and contribute to the versatility and efficiency of the Python programming language.