# Python Tty Module

The `tty` module defines functions for putting the tty into cbreak and raw modes. Because it requires the `termios` module, it will work only on Unix.

## Importing the Module

```python
import tty
```

## Functions

The module defines the following functions:

### `tty.setraw()`

Change the mode of the file descriptor `fd` to raw. If `when` is omitted, it defaults to `termios.TCSAFLUSH`, and is passed to `termios.tcsetattr()`.

```python
# tty.setraw(fd, when=termios.TCSAFLUSH)
```

### `tty.setcbreak()`

Change the mode of file descriptor `fd` to cbreak. If `when` is omitted, it defaults to `termios.TCSAFLUSH`, and is passed to `termios.tcsetattr()`.

```python
# tty.setcbreak(fd, when=termios.TCSAFLUSH)
```

## Example: Reading a Single Character

This example demonstrates how to read a single character from standard input without waiting for a newline (which is standard line-buffered behavior).

```python
import tty
import sys
import termios

def getch():
    fd = sys.stdin.fileno()
    old_settings = termios.tcgetattr(fd)
    try:
        tty.setraw(sys.stdin.fileno())
        ch = sys.stdin.read(1)
    finally:
        termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
    return ch

print("Press any key to continue...")
char = getch()
print(f"\nYou pressed: {char}")
```

[[programming/python/python]]