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('.')