blocks|key|1555709|text|使用pip+install+psutil安装psutil。然后，您可以使用以下命令获取可用空间量(字节)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1555710|import+psutil
print(psutil.disk_usage(".").free)|code-block|syntax|javascript|1555711|entityMap|0|LINK|mutability|MUTABLE|url|https://pypi.org/project/psutil/^0|2|I|M|6|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Install <a href="https://pypi.org/project/psutil/" rel="noreferrer">psutil</a> using <code>pip install psutil</code>. Then you can get the amount of free space in bytes using:

<pre class="lang-python prettyprint-override"><code>import psutil
print(psutil.disk_usage(".").free)
</code></pre>

blocks|key|1770749|text|您可以在windows上使用wmi模块，在unix上使用os.statvfs。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1770750|对于窗口|1770751|import+wmi

c+=+wmi.WMI+()
for+d+in+c.Win32_LogicalDisk():
++++print(+d.Caption,+d.FreeSpace,+d.Size,+d.DriveType)|code-block|syntax|javascript|1770752|适用于unix或linux|1770753|from+os+import+statvfs

statvfs(path)|1770754|entityMap|0|LINK|mutability|MUTABLE|url|https://pypi.python.org/pypi/WMI/^0|E|3|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|13|8|@]|9|@]|C|$I|J]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

You could use the <a href="https://pypi.python.org/pypi/WMI/">wmi</a> module for windows and os.statvfs for unix

for window

<pre><code>import wmi

c = wmi.WMI ()
for d in c.Win32_LogicalDisk():
 print( d.Caption, d.FreeSpace, d.Size, d.DriveType)
</code></pre>

for unix or linux

<pre><code>from os import statvfs

statvfs(path)
</code></pre>

blocks|key|1770898|text|如果您运行的是python3：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1770899|使用带有os.path.realpath('/')名称正则化的shutil.disk_usage()：|offset|length|style|CODE|1770900|from+os+import+path
from+shutil+import+disk_usage

print([i+/+1000000+for+i+in+disk_usage(path.realpath('/'))])|code-block|syntax|javascript|1770901|或|1770902|total_bytes,+used_bytes,+free_bytes+=+disk_usage(path.realpath('D:\\Users\\phannypack'))

print(total_bytes+/+1000000)+#+for+Mb
print(used_bytes+/+1000000)
print(free_bytes+/+1000000)|1770903|为您提供总空间、已用空间和可用空间(+MB+)。|1770904|entityMap^0|0|4|L|V|J|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]|$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|12|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|13|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

<h1>If you're running python3:</h1>

Using <code>shutil.disk_usage()</code>with <code>os.path.realpath('/')</code> name-regularization works:

<pre><code>from os import path
from shutil import disk_usage

print([i / 1000000 for i in disk_usage(path.realpath('/'))])
</code></pre>

Or

<pre><code>total_bytes, used_bytes, free_bytes = disk_usage(path.realpath('D:\\Users\\phannypack'))

print(total_bytes / 1000000) # for Mb
print(used_bytes / 1000000)
print(free_bytes / 1000000)
</code></pre>

giving you the total, used, &amp; free space in MB.

blocks|key|1770636|text|如果你不想添加另一个依赖，你可以在windows中使用ctype直接调用win32函数调用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1770637|import+ctypes

free_bytes+=+ctypes.c_ulonglong(0)

ctypes.windll.kernel32.GetDiskFreeSpaceExW(ctypes.c_wchar_p(u'c:\\'),+None,+None,+ctypes.pointer(free_bytes))

if+free_bytes.value+==+0:
+++print+'dont+panic'|code-block|syntax|javascript|1770638|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you dont like to add another dependency you can for windows use ctypes to call the win32 function call directly. 

<pre><code>import ctypes

free_bytes = ctypes.c_ulonglong(0)

ctypes.windll.kernel32.GetDiskFreeSpaceExW(ctypes.c_wchar_p(u'c:\\'), None, None, ctypes.pointer(free_bytes))

if free_bytes.value == 0:
 print 'dont panic'
</code></pre>

blocks|key|1770858|text|在Python3.3中，您可以使用Windows和UNIX标准库中的shutil.disk_usage("/").free+:)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1770859|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.python.org/3/library/shutil.html#shutil.disk_usage^0|Y|R|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

From Python 3.3 you can use <a href="https://docs.python.org/3/library/shutil.html#shutil.disk_usage" rel="noreferrer">shutil.disk_usage("/").free</a> from standard library for both Windows and UNIX :)

blocks|key|1770691|text|一个很好的跨平台方法是使用psutil：http://pythonhosted.org/psutil/#disks+(请注意，您需要psutil+0.3.0或更高版本)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1770692|entityMap|0|LINK|mutability|MUTABLE|url|http://pythonhosted.org/psutil/#disks^0|K|11|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

A good cross-platform way is using psutil: <a href="http://pythonhosted.org/psutil/#disks" rel="nofollow">http://pythonhosted.org/psutil/#disks</a>
(Note that you'll need psutil 0.3.0 or above).

blocks|key|1770537|text|对于类Unix平台(包括OS+)，os.statvfs()函数是获取这些信息的更好方法。Python文档中写着“可用性:+Unix”，但值得检查一下它是否也可以在您的Python版本中在Windows上运行(即，.文档可能不是最新的)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1770538|否则，您可以使用pywin32库直接调用GetDiskFreeSpaceEx函数。|1770539|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.python.org/2.7/library/os.html|1|http://sourceforge.net/projects/pywin32/|2|http://msdn.microsoft.com/en-us/library/aa364937(VS.85).aspx^0|H|C|0|0|8|7|1|K|I|2|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]]|C|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@$A|W|B|X|1|Y]|$A|Z|B|10|1|11]]|C|$]]|$1|F|3|-4|5|6|7|12|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]|P|$5|I|J|K|C|$L|Q]]]]

The <a href="https://docs.python.org/2.7/library/os.html" rel="nofollow noreferrer">os.statvfs()</a> function is a better way to get that information for Unix-like platforms (including OS X). The Python documentation says "Availability: Unix" but it's worth checking whether it works on Windows too in your build of Python (ie. the docs might not be up to date).

Otherwise, you can use the <a href="http://sourceforge.net/projects/pywin32/" rel="nofollow noreferrer">pywin32</a> library to directly call the <a href="http://msdn.microsoft.com/en-us/library/aa364937(VS.85).aspx" rel="nofollow noreferrer">GetDiskFreeSpaceEx</a> function.

blocks|key|1770803|text|下面的代码在windows上返回正确的值|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1770804|import+win32file++++

def+get_free_space(dirname):
++++secsPerClus,+bytesPerSec,+nFreeClus,+totClus+=+win32file.GetDiskFreeSpace(dirname)
++++return+secsPerClus+*+bytesPerSec+*+nFreeClus|code-block|syntax|javascript|1770805|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Below code returns correct value on windows

<pre><code>import win32file 

def get_free_space(dirname):
 secsPerClus, bytesPerSec, nFreeClus, totClus = win32file.GetDiskFreeSpace(dirname)
 return secsPerClus * bytesPerSec * nFreeClus
</code></pre>

blocks|key|1555516|text|我不知道有什么跨平台的方法来实现这一点，但也许对你来说，一个好的变通办法是编写一个包装器类来检查操作系统，并为每个操作系统使用最好的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1555517|对于Windows，在win32扩展中有GetDiskFreeSpaceEx方法。|offset|length|1555518|entityMap|0|LINK|mutability|MUTABLE|url|http://aspn.activestate.com/ASPN/docs/ActivePython/2.2/PyWin32/win32api__GetDiskFreeSpaceEx_meth.html^0|0|K|I|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

I Don't know of any cross-platform way to achieve this, but maybe a good workaround for you would be to write a wrapper class that checks the operating system and uses the best method for each.

For Windows, there's the <a href="http://aspn.activestate.com/ASPN/docs/ActivePython/2.2/PyWin32/win32api__GetDiskFreeSpaceEx_meth.html" rel="nofollow noreferrer">GetDiskFreeSpaceEx</a> method in the win32 extensions.

I need a way to determine the space remaining on a disk volume using python on linux, Windows and OS X. I'm currently parsing the output of the various system calls (df, dir) to accomplish this - is there a better way?

Cross-platform space remaining on volume using python

Windows

Python

Unix

我需要一种在linux，Windows和OS X上使用python来确定磁盘卷上剩余空间的方法。我目前正在解析各种系统调用(df，dir)的输出来实现这一点--有没有更好的方法？

问使用python保留卷上的跨平台空间
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