b64-stream

b64-stream is a Python binding for the b64-stream. This is Base64 stream encode/decode library.

Installation

pip install b64-stream

Getting started

b64-stream implements classes:

1. Base64StreamDecode
2. Base64StreamEncode

Every class has:

0. __init__(buffer_size: int = 2000) - buffer_size used by create buffer for update method for new encoded/decoded chunk.
1. buffer_size - size of buffer
2. total - total encoded/decoded bytes
3. clear() - reset state to initial
4. update(chunk) - processing chunk
5. finalize() - end of processing

Usage examples

Decode data

from b64_stream import Base64StreamDecode

chunks = [b'MTIzNDU2', b'NzEyMzQ1Njc=']
result = []
decoder = Base64StreamDecode()
for chunk in chunks:
    for r_chunk in decoder.update(chunk):
        result.append(r_chunk)
decoder.finalize()

Encode data

from b64_stream import Base64StreamEncode

chunks = [b'1234567', b'1234567']
encoder = Base64StreamEncode()
result = []
for chunk in chunks:
    for r_chunk in encoder.update(chunk):
        result.append(r_chunk)
result.append(encoder.finalize())

License

b64-stream is licensed under the Apache 2.0 License.