python 文件大小

 

1. os.path.getsize(file_path)：file_path爲文件路徑

import os
os.path.getsize('d:/svn/bin/SciLexer.dll')
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2. 遍歷文件夾，將所有文件大小加和， os.walk()遍歷文件夾

 

import os
from os.path import join, getsize


def getdirsize(dir):
    size = 0
    for root, dirs, files in os.walk(dir):
        size += sum([getsize(join(root, name)) for name in files])
    return size

 

2.將文件大小進行格式化

 

def size_format(size):
    if size < 1000:
        return '%i' % size + 'size'
    elif 1000 <= size < 1000000:
        return '%.1f' % float(size/1000) + 'KB'
    elif 1000000 <= size < 1000000000:
        return '%.1f' % float(size/1000000) + 'MB'
    elif 1000000000 <= size < 1000000000000:
        return '%.1f' % float(size/1000000000) + 'GB'
    elif 1000000000000 <= size:
        return '%.1f' % float(size/1000000000000) + 'TB'