morefs provides standalone fsspec-based filesystems like:
AsyncLocalFileSystemthat provides async implementation ofLocalFileSystem.- In-memory filesystems
DictFileSystembuilt on nested dictionaries andMemFSbuilt on tries, and are much faster than fsspec'sMemoryFileSystem. OverlayFileSystemthat allows to overlay multiple fsspec-based filesystems.
You can install morefs via pip from PyPI:
$ pip install morefsYou might need to install with extras for some filesystems:
$ pip install morefs[asynclocal] # for installing aiofile dependency for AsyncLocalFileSystem
$ pip install morefs[memfs] # for installing pygtrie dependency for MemFSExtended version of LocalFileSystem that also provides async methods.
import asyncio
from morefs.asyn_local import AsyncLocalFileSystem
async def main():
fs = AsyncLocalFileSystem(auto_mkdir=False)
f = await fs.open_async("foo", mode="w")
async with f:
await f.write("foobar")
content = await fs._cat("foo")
print(content)
print(fs.cat("foo")) # you can still use sync methods
asyncio.run(main())DictFS is a nested dictionary-based, in-memory filesystem and acts more like a real LocalFileSystem.
from morefs.dict import filesystem
fs = DictFS()MemFS is a trie-based in-memory filesystem, and acts like a bucket storage.
from morefs.memory import MemFS
fs = MemFS()from morefs.overlay import OverlayFileSystem
# use localfilesystem for write, overlay all filesystems for read
fs = OverlayFileSystem(file={"auto_mkdir": True}, s3={"anon": True})
# or you can pass filesystem instances directly
# as variable positional arguments or with keyword argument `filesystems=[]`
fs = OverlayFileSystem(LocalFileSystem(), s3={"anon": True})Contributions are very welcome. To learn more, see the Contributor Guide.
Distributed under the terms of the Apache 2.0 license, morefs is free and open source software.
If you encounter any problems, please file an issue along with a detailed description.