python检测空间储存剩余大小和指定文件夹内存占用的实例

import os
def check_memory(path, style='M'):
 i = 0
 for dirpath, dirname, filename in os.walk(path):
  for ii in filename:
   i += os.path.getsize(os.path.join(dirpath,ii))
 if style == 'M':
  memory = i / 1024. / 1024.
  print '%.2f MB' % memory
 else:
  memory = i / 1024. / 1024./ 1024.
  print '%.4f GB' % memory

import ctypes
import os
import platform
import sys
def get_free_space_mb(folder):
 """ Return folder/drive free space (in bytes)
 """
 if platform.system() == 'Windows':
  free_bytes = ctypes.c_ulonglong(0)
  ctypes.windll.kernel32.GetDiskFreeSpaceExW(ctypes.c_wchar_p(folder), None, None, ctypes.pointer(free_bytes))
  return free_bytes.value/1024/1024/1024 
 else:
  st = os.statvfs(folder)
  return st.f_bavail * st.f_frsize/1024/1024/1024.

def disk_stat(path):
 import os
 hd={}
 disk = os.statvfs(path)
 percent = (disk.f_blocks - disk.f_bfree) * 100 / (disk.f_blocks -disk.f_bfree + disk.f_bavail) + 1
 return percent
print disk_stat('.')