https://github.com/alemazzo/python-java-stream
Java Stream For Python
https://github.com/alemazzo/python-java-stream
functional-programming java-stream python python-functional python-stream stream
Last synced: about 2 months ago
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Java Stream For Python
- Host: GitHub
- URL: https://github.com/alemazzo/python-java-stream
- Owner: alemazzo
- License: gpl-3.0
- Created: 2021-03-03T14:18:37.000Z (about 5 years ago)
- Default Branch: main
- Last Pushed: 2022-01-04T22:09:18.000Z (about 4 years ago)
- Last Synced: 2024-09-01T01:39:59.903Z (over 1 year ago)
- Topics: functional-programming, java-stream, python, python-functional, python-stream, stream
- Language: Python
- Homepage:
- Size: 225 KB
- Stars: 9
- Watchers: 1
- Forks: 1
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELIST.md
- License: LICENSE
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Python Stream
The power of Java stream now available in Python
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## Table of Contents
- [Table of Contents](#table-of-contents)
- [About The Project](#about-the-project)
- [Built With](#built-with)
- [Getting Started](#getting-started)
- [Prerequisites](#prerequisites)
- [Installation](#installation)
- [Usage](#usage)
- [Roadmap](#roadmap)
- [Contributing](#contributing)
- [License](#license)
- [Contact](#contact)
## About The Project
**What is Stream?**
Stream represents a sequence of objects from a source, which supports aggregate operations.
Following are the characteristics of a Stream:
* **Sequence of elements** − A stream provides a set of elements of specific type in a sequential manner. A stream gets/computes elements on demand. It never stores the elements.
* **Source** − Stream takes Collections, Arrays, or I/O resources as input source.
* **Aggregate operations** − Stream supports aggregate operations like filter, map, limit, reduce, find, and so on.
* **Pipelining** − Most of the stream operations return stream itself so that their result can be pipelined. These operations are called intermediate operations and their function is to take input, process them, and return output to the target. toList() and toSet() methods are terminals operation which is normally present at the end of the pipelining operation to mark the end of the stream.
* **Automatic iterations** − Stream operations do the iterations internally over the source elements provided, in contrast to Collections where explicit iteration is required.
### Built With
* [Python](https://python.org)
## Getting Started
Follow this steps for install this tool in the right way.
### Prerequisites
That's all you need to use Streams:
* python3
```sh
sudo apt install python3
```
* pip
```sh
sudo apt install python3-pip
```
### Installation
1. Install the module with **pip**
```sh
pip install java-stream
```
2. Import the module in your project
```py
from stream import Stream
```
## Usage
Here some example of how to use Streams:
* Generate a list of 100 random numbers
```py
Stream.randint(1, 100).limit(100).toList()
```
* Print the numbers from 1 to 100
```py
Stream.integers().limit(100).forEach(print)
```
* Generate a list made of zeros with a length of 10
```py
Stream.constant(0).limit(10).toList()
```
* Generate a list of squares of the number from 1 to 20
```py
IntStream.integers().map(lambda x: x**2).limit(20).toList()
```
* Generate a set of the first 100 odds number
```py
IntStream.odds().limit(100).toSet()
```
* Generate a list of all the primes number smaller than 1000
```py
Stream.primes().takeWhile(lambda x: x < 1000).toList()
```
## Roadmap
See the [open issues](https://github.com/alemazzo/python-java-stream/issues) for a list of proposed features (and known issues).
## Contributing
Contributions are what make the open source community such an amazing place to be learn, inspire, and create. Any contributions you make are **greatly appreciated**.
1. Fork the Project
2. Create your Feature Branch (`git checkout -b feature/AmazingFeature`)
3. Commit your Changes (`git commit -m 'Add some AmazingFeature'`)
4. Push to the Branch (`git push origin feature/AmazingFeature`)
5. Open a Pull Request
## License
Distributed under the GNU License. See `LICENSE` for more information.
## Contact
Alessandro Mazzoli - [@alessandro.py](https://instagram.com/alessandro.py) - developer.alessandro.mazzoli@gmail.com
Project Link: [https://github.com/alemazzo/python-java-stream](https://github.com/alemazzo/python-java-stream)
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