Metadata-Version: 2.4
Name: cramjam
Version: 2.8.4
Requires-Dist: black==22.3.0 ; extra == 'dev'
Requires-Dist: numpy ; extra == 'dev'
Requires-Dist: pytest>=5.30 ; extra == 'dev'
Requires-Dist: pytest-xdist ; extra == 'dev'
Requires-Dist: pytest-benchmark ; extra == 'dev'
Requires-Dist: hypothesis ; extra == 'dev'
Provides-Extra: dev
License-File: LICENSE
Summary: Thin Python bindings to de/compression algorithms in Rust
Keywords: compression,decompression,snappy,zstd,bz2,gzip,lz4,brotli,deflate,blosc2
Author: Miles Granger <miles59923@gmail.com>
Author-email: Miles Granger <miles59923@gmail.com>
License: MIT
Requires-Python: >=3.8
Description-Content-Type: text/markdown; charset=UTF-8; variant=GFM
Project-URL: homepage, https://github.com/milesgranger/pyrus-cramjam
Project-URL: documentation, https://docs.rs/cramjam/latest/cramjam
Project-URL: repository, https://github.com/milesgranger/pyrus-cramjam

# cramjam

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[![Downloads](https://pepy.tech/badge/cramjam/month)](https://pepy.tech/project/cramjam)

[API Documentation](https://docs.rs/cramjam)

### Install
```commandline
pip install --upgrade cramjam  # Requires no Python or system dependencies!
```

### CLI

A CLI interface is available as [`cramjam-cli`](https://github.com/cramjam/cramjam-cli)

### libcramjam

A Rust crate and C friendly library available at [libcramjam](https://github.com/cramjam/libcramjam)

---

Extremely thin and easy-to-install Python bindings to de/compression algorithms in Rust.
Allows for using algorithms such as Snappy, without any system or other python dependencies.

---

##### Benchmarks

Some basic benchmarks are available [in the benchmarks directory](./benchmarks/README.md)

---

Available algorithms:

- [X] Snappy&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`cramjam.snappy`
- [X] Brotli&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`cramjam.brotli`
- [X] Bzip2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`cramjam.bzip2`
- [X] Lz4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`cramjam.lz4`
- [X] Gzip&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`cramjam.gzip`
- [X] Deflate&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`cramjam.deflate`
- [X] ZSTD&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`cramjam.zstd`
- [X] XZ / LZMA&nbsp;&nbsp;`cramjam.xz`
- [X] Blosc2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`cramjam.experimental.blosc2`
- [X] IGzip&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`cramjam.experimental.igzip` (only on 64-bit targets)

All available for use as:

```python
>>> import cramjam
>>> import numpy as np
>>> compressed = cramjam.snappy.compress(b"bytes here")
>>> decompressed = cramjam.snappy.decompress(compressed)
>>> decompressed
cramjam.Buffer(len=10)  # an object which implements the buffer protocol
>>> bytes(decompressed)
b"bytes here"
>>> np.frombuffer(decompressed, dtype=np.uint8)
array([ 98, 121, 116, 101, 115,  32, 104, 101, 114, 101], dtype=uint8)
```

Where the API is `cramjam.<compression-variant>.compress/decompress` and accepts 
`bytes`/`bytearray`/`numpy.array`/`cramjam.File`/`cramjam.Buffer` / `memoryview` objects.

**de/compress_into**
Additionally, all variants support `decompress_into` and `compress_into`. 
Ex.
```python
>>> import numpy as np
>>> from cramjam import snappy, Buffer
>>>
>>> data = np.frombuffer(b'some bytes here', dtype=np.uint8)
>>> data
array([115, 111, 109, 101,  32,  98, 121, 116, 101, 115,  32, 104, 101,
       114, 101], dtype=uint8)
>>>
>>> compressed = Buffer()
>>> snappy.compress_into(data, compressed)
33  # 33 bytes written to compressed buffer
>>>
>>> compressed.tell()  # Where is the buffer position?
33  # goodie!
>>>
>>> compressed.seek(0)  # Go back to the start of the buffer so we can prepare to decompress
>>> decompressed = b'0' * len(data)  # let's write to `bytes` as output
>>> decompressed
b'000000000000000'
>>>
>>> snappy.decompress_into(compressed, decompressed)
15  # 15 bytes written to decompressed
>>> decompressed
b'some bytes here'
```

