added type guards for MemoryFileSystem and name property to MemoryFile class

fsspec/implementations/memory.py

@@ -7,6 +7,7 @@
 from typing import Any, ClassVar
 
 from fsspec import AbstractFileSystem
+from fsspec.utils import stringify_path
 
 logger = logging.getLogger("fsspec.memoryfs")
 
@@ -25,6 +26,9 @@ class MemoryFileSystem(AbstractFileSystem):
 
     @classmethod
     def _strip_protocol(cls, path):
+        path = stringify_path(path)
+        if "\\" in path:
+            path = path.replace("\\", "/")
         if path.startswith("memory://"):
             path = path[len("memory://") :]
         if "::" in path or "://" in path:
@@ -280,6 +284,10 @@ def __init__(self, fs=None, path=None, data=None):
     def size(self):
         return self.getbuffer().nbytes
 
+    @property
+    def name(self):
+        return self.path.rsplit("/", 1)[-1]
+
     def __enter__(self):
         return self
 

fsspec/implementations/tests/test_memory.py

@@ -3,7 +3,7 @@
 import pytest
 
 from fsspec.implementations.local import LocalFileSystem, make_path_posix
-
+from pathlib import Path
 
 def test_1(m):
     m.touch("/somefile")  # NB: is found with or without initial /
@@ -363,3 +363,10 @@ def test_cp_two_files(m):
         "/target/file0",
         "/target/file1",
     ]
+
+def test_open_path(m):
+    with m.open("/myfile/foo/bar", "wb") as f:
+        f.write(b"some\nlines\nof\ntext")
+
+    path = Path("/myfile/foo/bar")
+    assert m.read_text(path) == "some\nlines\nof\ntext"