可重用的库以获得人类可读的文件大小？ [英] Reusable library to get human readable version of file size?

问题描述

网络上有各种各样的代码片段，可为您提供从字节大小返回人类可读大小的功能：

There are various snippets on the web that would give you a function to return human readable size from bytes size:

>>> human_readable(2048)
'2 kilobytes'
>>>

但是有Python库提供此功能吗？

But is there a Python library that provides this?

推荐答案

通过简单的实现解决了上述任务太少，需要库的问题：

Addressing the above "too small a task to require a library" issue by a straightforward implementation:

def sizeof_fmt(num, suffix='B'):
    for unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']:
        if abs(num) < 1024.0:
            return "%3.1f%s%s" % (num, unit, suffix)
        num /= 1024.0
    return "%.1f%s%s" % (num, 'Yi', suffix)

支持：

• 所有当前已知的二进制前缀


• 负数和正数


• 大于1000 Yobibytes的数字


• 任意单位（也许您想

• all currently known binary prefixes
• negative and positive numbers
• numbers larger than 1000 Yobibytes
• arbitrary units (maybe you like to count in Gibibits!)

例如：

>>> sizeof_fmt(168963795964)
'157.4GiB'

通过弗雷德·西雷拉（Fred Cirera）

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