| Name | readchar JSON |
| Version |
4.2.1
JSON |
| download |
| home_page | None |
| Summary | Library to easily read single chars and key strokes |
| upload_time | 2024-11-04 18:28:07 |
| maintainer | None |
| docs_url | None |
| author | None |
| requires_python | >=3.8 |
| license | MIT Licence Copyright (c) 2022 Miguel Angel Garcia Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicence, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| keywords |
characters
keystrokes
stdin
command line
|
| VCS |
 |
| bugtrack_url |
|
| requirements |
No requirements were recorded.
|
| Travis-CI |
No Travis.
|
| coveralls test coverage |
|
[](https://github.com/magmax/python-readchar)
[](https://pypi.python.org/pypi/readchar)
[](https://pypi.python.org/pypi/readchar)
[](LICENCE) <br>
[](https://github.com/magmax/python-readchar/actions/workflows/run-tests.yaml?query=branch%3Amaster)
[](https://coveralls.io/github/magmax/python-readchar?branch=master)
[](https://pypi.python.org/pypi/readchar)
# python-readchar
Library to easily read single chars and keystrokes.
Born as a [python-inquirer](https://github.com/magmax/python-inquirer) requirement.
## Installation
simply install it via `pip`:
```bash
pip install readchar
```
Or download the source code from [PyPi](https://pypi.python.org/pypi/readchar).
## Usage
Simply read a character or keystroke:
```python
import readchar
key = readchar.readkey()
```
React to different kinds of key-presses:
```python
from readchar import readkey, key
while True:
k = readkey()
if k == "a":
# do stuff
if k == key.DOWN:
# do stuff
if k == key.ENTER:
break
```
## Documentation
There are just two methods:
### `readchar.readchar() -> str`
Reads one character from `stdin`, returning it as a string with length 1. Waits until a
character is available.
As only ASCII characters are actually a single character, you usually want to use the
next function, that also handles longer keys.
### `readchar.readkey() -> str`
Reads the next keystroke from `stdin`, returning it as a string. Waits until a keystroke
is available.
A keystroke can be:
- single characters as returned by `readchar()`. These include:
- character for normal keys: <kbd>a</kbd>, <kbd>Z</kbd>, <kbd>9</kbd>,...
- special characters like <kbd>ENTER</kbd>, <kbd>BACKSPACE</kbd>, <kbd>TAB</kbd>,...
- combinations with <kbd>CTRL</kbd>: <kbd>CTRL</kbd>+<kbd>A</kbd>,...
- keys that are made up of multiple characters:
- characters for cursors/arrows: <kbd>🡩</kbd>, <kbd>🡪</kbd>, <kbd>🡫</kbd>,
<kbd>🡨</kbd>
- navigation keys: <kbd>INSERT</kbd>, <kbd>HOME</kbd>,...
- function keys: <kbd>F1</kbd> to <kbd>F12</kbd>
- combinations with <kbd>ALT</kbd>: <kbd>ALT</kbd>+<kbd>A</kbd>,...
- combinations with <kbd>CTRL</kbd> and <kbd>ALT</kbd>:
<kbd>CTRL</kbd>+<kbd>ALT</kbd>+<kbd>SUPR</kbd>,...
> **Note** <kbd>CTRL</kbd>+<kbd>C</kbd> will not be returned by `readkey()`, but instead
> raise a `KeyboardInterupt`. If you want to handle it yourself, use `readchar()`.
### `readchar.key` module
This submodule contains a list of available keys to compare against. The constants are
defined depending on your operating system, so it should be fully portable. If a key is
listed here for your platform, `readkey()` can read it, and you can compare against it.
### `readchar.config` class
This static class contains configurations for `readchar`. It holds constants that are
used in other parts of the code as class attributes. You can override/change these to
modify its behaviour. Here is a description of the existing attributes:
<dl>
<dt><code>INTERRUPT_KEYS</code></dt>
<dd>
List of keys that will result in `readkey()` raising a `KeyboardInterrupt`. <br>
*Default:* `[key.CTRL_C]`
</dd>
</dl>
## OS Support
This library actively supports these operating systems:
- Linux
- Windows
Some operating systems are enabled, but not actively tested or supported:
- macOS
- FreeBSD / OpenBSD
Theoretically every Unix based system should work, but they will not be actively tested.
It is also required that somebody provides initial test results before the OS is enabled
and added to the list. Feel free to open a PR for that.
Thank you!
## How to contribute
You have an issue problem or found a bug? You have a great new idea or just want to fix
a typo? Great :+1:. We are happy to accept your issue or pull request, but first, please
read our
[contribution guidelines](https://github.com/magmax/python-readchar/blob/master/CONTRIBUTING.md).
They will also tell you how to write code for this repo and how to properly prepare an
issue or a pull request.
______________________________________________________________________
*Copyright (c) 2014-2022 Miguel Ángel García*
Raw data
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