https://github.com/limix/ndarray-listener

Implementation of the Observer pattern for NumPy arrays.
https://github.com/limix/ndarray-listener

numpy observer-pattern

Last synced: about 2 months ago
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Implementation of the Observer pattern for NumPy arrays.

• Host: GitHub
• URL: https://github.com/limix/ndarray-listener
• Owner: limix
• License: mit
• Created: 2016-10-09T15:25:43.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2021-05-17T15:07:35.000Z (over 3 years ago)
• Last Synced: 2024-11-07T10:53:33.129Z (2 months ago)
• Topics: numpy, observer-pattern
• Language: Python
• Homepage:
• Size: 77.1 KB
• Stars: 1
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# ndarray-listener

Implementation of the [Observer pattern](https://en.wikipedia.org/wiki/Observer_pattern) for NumPy arrays.

## Example

```python

from numpy import array

from ndarray_listener import ndl

a = ndl(array([-0.5, 0.1, 1.1]))

class Observer(object):

  def __init__(self):

    self.called_me = False

  def __call__(self, _):

    self.called_me = True

o = Observer()

a.talk_to(o)

print(o.called_me)

a[0] = 1.2

print(o.called_me)

```

The output should be

```

False

True

```

## Install

From command line, enter

```bash

pip install ndarray-listener

```

## Running the tests

Install dependencies

```bash

pip install pytest

```

then run

```python

python -c "import ndarray_listener; ndarray_listener.test()"

```

## Documentation

[Documentation](https://ndarray-listener.readthedocs.io/en/latest/)

## Authors

* [Danilo Horta](https://github.com/horta)

## License

This project is licensed under the [MIT License](https://raw.githubusercontent.com/limix/ndarray-listener/master/LICENSE.md).