pybase64 1.0.0

快速Base64实现

此项目是libbase64上的包装。

它旨在为base64编码/解码提供一种快速的base64实现。

安装

pip install pybase64

用法

pybase64使用与PythonBase64“现代接口”（在Python2.4中引入）相同的API，以便于集成。

为了获得最快的解码速度，建议尽可能使用pybase64.b64decode和validate=True。

importpybase64print(pybase64.b64encode(b'>>>foo???',altchars='_:'))# b'Pj4_Zm9vPz8:'print(pybase64.b64decode(b'Pj4_Zm9vPz8:',altchars='_:',validate=True))# b'>>>foo???'# Standard encoding helpersprint(pybase64.standard_b64encode(b'>>>foo???'))# b'Pj4+Zm9vPz8/'print(pybase64.standard_b64decode(b'Pj4+Zm9vPz8/'))# b'>>>foo???'# URL safe encoding helpersprint(pybase64.urlsafe_b64encode(b'>>>foo???'))# b'Pj4-Zm9vPz8_'print(pybase64.urlsafe_b64decode(b'Pj4-Zm9vPz8_'))# b'>>>foo???'

还提供了一个命令行工具。它有编码、解码和基准子命令。

usage: pybase64 [-h] [-V] {benchmark,encode,decode} ...

pybase64 command-line tool.

positional arguments:
  {benchmark,encode,decode}
                        tool help
    benchmark           -h for usage
    encode              -h for usage
    decode              -h for usage

optional arguments:
  -h, --help            show this help message and exit
  -V, --version         show program's version number and exit

关于Read the Docs的完整文档。

基准

运行python 3.7.2、apple llvm版本10.0.0（clang-1000.11.45.5）、macosx10.14.2，英特尔酷睿i7-4870hq@2.50ghz

pybase64 0.5.0 (C extension active - AVX2)
bench: altchars=None, validate=False
pybase64._pybase64.encodebytes:   1734.776 MB/s (13,271,472 bytes -> 17,928,129 bytes)
pybase64._pybase64.b64encode:     4039.539 MB/s (13,271,472 bytes -> 17,695,296 bytes)
pybase64._pybase64.b64decode:     1854.423 MB/s (17,695,296 bytes -> 13,271,472 bytes)
base64.encodebytes:                 78.352 MB/s (13,271,472 bytes -> 17,928,129 bytes)
base64.b64encode:                  539.840 MB/s (13,271,472 bytes -> 17,695,296 bytes)
base64.b64decode:                  287.826 MB/s (17,695,296 bytes -> 13,271,472 bytes)
bench: altchars=None, validate=True
pybase64._pybase64.b64encode:     4156.607 MB/s (13,271,472 bytes -> 17,695,296 bytes)
pybase64._pybase64.b64decode:     4107.997 MB/s (17,695,296 bytes -> 13,271,472 bytes)
base64.b64encode:                  559.342 MB/s (13,271,472 bytes -> 17,695,296 bytes)
base64.b64decode:                  143.674 MB/s (17,695,296 bytes -> 13,271,472 bytes)
bench: altchars=b'-_', validate=False
pybase64._pybase64.b64encode:     2786.776 MB/s (13,271,472 bytes -> 17,695,296 bytes)
pybase64._pybase64.b64decode:     1124.136 MB/s (17,695,296 bytes -> 13,271,472 bytes)
base64.b64encode:                  322.427 MB/s (13,271,472 bytes -> 17,695,296 bytes)
base64.b64decode:                  205.195 MB/s (17,695,296 bytes -> 13,271,472 bytes)
bench: altchars=b'-_', validate=True
pybase64._pybase64.b64encode:     2806.271 MB/s (13,271,472 bytes -> 17,695,296 bytes)
pybase64._pybase64.b64decode:     2740.456 MB/s (17,695,296 bytes -> 13,271,472 bytes)
base64.b64encode:                  314.709 MB/s (13,271,472 bytes -> 17,695,296 bytes)
base64.b64decode:                  121.803 MB/s (17,695,296 bytes -> 13,271,472 bytes)

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