blocks|key|4109416|text|看看这里：http://en.wikipedia.org/wiki/Environment_variable#User_management_variables。用户目录下的任何内容都是好的。如果它适用于所有用户，那么它应该是：%25ALLUSERSPROFILE%25。如果是针对特定用户的，请确保权限是正确的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4109417|有关其他Windows版本的更多信息，请查看MSDN。环境变量可能因系统而异。|4109418|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Environment_variable#User_management_variables^0|5|23|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

Have a look here: <a href="http://en.wikipedia.org/wiki/Environment_variable#User_management_variables" rel="nofollow noreferrer">http://en.wikipedia.org/wiki/Environment_variable#User_management_variables</a>. Anything that's under the users directory is good. If its for all users, then it should be: %ALLUSERSPROFILE%. If its for a specific user, make sure the permissions are right.

Check out MSDN for more info about other Windows Versions. Environment variables can vary from systems to systems.

blocks|key|3263848|text|在Windows中，您可以将应用程序文件放在许多地方。This+page会显示一个列表(这个枚举是特定于.Net的，但大多数特殊文件夹通常都是Windows上的标准文件夹)。基本上，你需要决定是否每个用户都需要一个缓存，只为本地机器，每个应用程序或共享，等等。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3263849|我没有太多使用python的经验，所以我不能特别帮助如何获得这些路径，但我相信在这里有更多知识的人可以。|3263850|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.environment.specialfolder.aspx^0|R|9|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

There are a number a places you can put your application files in Windows. <a href="http://msdn.microsoft.com/en-us/library/system.environment.specialfolder.aspx" rel="nofollow noreferrer">This page</a> shows a list (this enum is .Net specific but most of the special folders are standard on Windows in general). Basically you'll need to decide if you need a cache per user, only for the local machine, per application or shared, etc.

I don't have much experience with python so I cannot specifically help with how to get these paths, but I'm sure someone more knowledgeable here can.

blocks|key|884397|text|Windows应用程序存储其(永久)应用程序数据的标准位置由%25APPDATA%25+(当前用户)或%25ALLUSERSPROFILE%25+(所有用户)环境变量引用。你可以使用，例如(仅仅是初级的并且不是非常优雅的错误检查！)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|884398|import+os
app_path+=+os.getenv("APPDATA")+%2B+"\\MyApplicationData"
try:
++++os.mkdir(app_path)
except+WindowsError:
++++#+already+exists|code-block|syntax|javascript|884399|现在，您有了自己的应用程序目录。|884400|entityMap^0|U|9|1B|H|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

The standard location for Windows application to store their (permanent) application data is referenced by the <code>%APPDATA%</code> (current user) or <code>%ALLUSERSPROFILE%</code> (all users) environment variables. You can access them using, e.g. (only rudimentary and not very elegant error checking!):

<pre><code>import os
app_path = os.getenv("APPDATA") + "\\MyApplicationData"
try:
 os.mkdir(app_path)
except WindowsError:
 # already exists
</code></pre>

Now you have your own directory for your app.

blocks|key|884348|text|也许tempfile模块提供了您需要的东西。它使用Windows临时目录(可能不在网络驱动器上)，但您可以根据需要指定一个目录。此外，出于安全原因，此模块应该是正确的工具-如果使用tempfile.mkstemp()，则只有创建用户ID才能对文件进行读写。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|884349|噢。我看到您刚刚编辑了您的问题，并且您需要在应用程序调用之间保持文件持久性。那么tempfile就不那么理想了(即使您可以选择在两次调用之间不删除缓存)。|884350|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.python.org/library/tempfile.html^0|2|8|2I|I|2|8|0|0|14|8|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

Perhaps the <a href="http://docs.python.org/library/tempfile.html" rel="nofollow noreferrer"><code>tempfile</code></a> module provides what you need. It uses the Windows Temp directory (which probably is not on a network drive) but you can specify a directory if you want to. Also for security reasons this module should be the right tool - if you use <code>tempfile.mkstemp()</code> the file is readable and writable only by the creating user ID.

Oh. I see you have just edited your question and that you need file persistence between invocations of the app. Then <code>tempfile</code> is not that ideal (even though you could choose not to delete your cache between invocations).

blocks|key|42466|text|wx.StandardPaths模块包含返回文件系统中各种标准位置的方法，并透明地尝试在Unix、Mac和Windows下做“正确的事情”。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|42467|entityMap|0|LINK|mutability|MUTABLE|url|http://wxpython.org/docs/api/wx.StandardPaths-class.html^0|0|G|0|G|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

The <a href="http://wxpython.org/docs/api/wx.StandardPaths-class.html" rel="nofollow noreferrer"><code>wx.StandardPaths</code></a> module contains methods that return various standard locations in the file system and transparently tries to do "the right thing" under Unix, Mac OS X, and Windows.

blocks|key|4109512|text|一个方便的软件包是appdirs，它支持Windows和大多数其他操作系统。例如，为"Author“发布的"MyApp”版本1.0创建缓存目录为：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4109513|import+os
from+appdirs+import+user_cache_dir

dirname+=+user_cache_dir("AppName",+"Author",+"v1.0")
#+C:\Users\username\AppData\Local\Author\AppName\Cache\v1.0

#+create+it,+if+it+doesn't+exist
os.makedirs(dirname,+exist_ok=True)|code-block|syntax|javascript|4109514|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/ActiveState/appdirs^0|9|7|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

A handy package for this is <a href="https://github.com/ActiveState/appdirs" rel="nofollow noreferrer">appdirs</a>, which support Windows and most other operating systems. For example, to create a cache directory for &quot;MyApp&quot; version 1.0 published by &quot;Author&quot; is:
<pre><code>import os
from appdirs import user_cache_dir

dirname = user_cache_dir(&quot;AppName&quot;, &quot;Author&quot;, &quot;v1.0&quot;)
# C:\Users\username\AppData\Local\Author\AppName\Cache\v1.0

# create it, if it doesn't exist
os.makedirs(dirname, exist_ok=True)
</code></pre>

blocks|key|3263784|text|应用程序是否有用户可以指定的首选项、设置或选项？如果是，则添加一个选项，用户可以在该选项中指定数据的位置，默认值为当前Windows临时目录。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3263785|他们总是有可能在临时目录的驱动器上没有足够的空间，并且需要使用不同的驱动器/目录。|3263786|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Does the app have any preferences, settings or options that the user can specify? If so, add an option where the user can specify the location of the data, with a default of the current Windows temp directory.

There's always a chance they may not have enough space on the drive with the temp directory, and would need to use a different drive/directory.

My application caches some data on disk. Because the cache may be large, it should not be stored on a network drive. It should persist between invocations of the application. I have a mechanism for the user to choose a location, but would like the default to be sensible and "the right thing" for the platform.

What is the appropriate location for such a cache? Is there an API for determining the appropriate location? How do I call it from Python?

Appropriate location for my application's cache on Windows

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我的应用程序在磁盘上缓存了一些数据。由于缓存可能很大，因此不应将其存储在网络驱动器上。它应该在应用程序的调用之间持久化。我有一个机制，让用户选择一个位置，但希望默认是合理的和“正确的东西”的平台。这样的缓存的合适位置是什么？是否有用于确定适当位置的API？如何在Python中调用它？

问我的应用程序缓存在Windows上的适当位置
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