问题描述
我正在寻找一种在Python中创建虚拟文件系统以创建目录和文件的方法,然后再将这些目录和文件写入磁盘.
I'm looking for a way to create a virtual file system in Python for creating directories and files, before writing these directories and files to disk.
使用 PyFilesystem ,我可以使用以下内容构建内存文件系统:
Using PyFilesystem I can construct a memory filesystem using the following:
>>> import fs
>>> dir = fs.open_fs('mem://')
>>> dir.makedirs('fruit')
SubFS(MemoryFS(), '/fruit')
>>> dir.makedirs('vegetables')
SubFS(MemoryFS(), '/vegetables')
>>> with dir.open('fruit/apple.txt', 'w') as apple: apple.write('braeburn')
...
8
>>> dir.tree()
├── fruit
│ └── apple.txt
└── vegetables
理想情况下,我希望能够执行以下操作:
Ideally, I want to be able to do something like:
dir.write_to_disk('<base path>')
将此结构写入磁盘,其中<base path>
是将在其中创建此结构的父目录.
To write this structure to disk, where <base path>
is the parent directory in which this structure will be created.
据我所知,PyFilesystem无法实现这一目标.还有什么我可以代替的,还是我必须自己实现?
As far as I can tell, PyFilesystem has no way of achieving this. Is there anything else I could use instead or would I have to implement this myself?
推荐答案
您可以使用 fs.copy.copy_fs()
可以从一个文件系统复制到另一个文件系统,或 fs.move.move_fs()
一起移动文件系统.
You can use fs.copy.copy_fs()
to copy from one filesystem to another, or fs.move.move_fs()
to move the filesystem altogether.
鉴于PyFilesystem还在基础系统文件系统周围进行了抽象- OSFS
-实际上,这是默认协议,您只需要复制内存文件系统( MemoryFS
),实际上,您会将其写入磁盘:
Given that PyFilesystem also abstracts around the underlying system filesystem - OSFS
- in fact, it's the default protocol, all you need is to copy your in-memory filesystem (MemoryFS
) to it and, in effect, you'll have it written to the disk:
import fs
import fs.copy
mem_fs = fs.open_fs('mem://')
mem_fs.makedirs('fruit')
mem_fs.makedirs('vegetables')
with mem_fs.open('fruit/apple.txt', 'w') as apple:
apple.write('braeburn')
# write to the CWD for testing...
with fs.open_fs(".") as os_fs: # use a custom path if you want, i.e. osfs://<base_path>
fs.copy.copy_fs(mem_fs, os_fs)
这篇关于如何构造内存中的虚拟文件系统,然后将此结构写入磁盘的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!