Fix zarr sync (#1663)

hoodmane · oeway · web-flow · commit 4f2ace4b8708 · 2024-02-14T13:09:41.000+01:00
This patch removes fasteners and disables zarr.sync which uses process and thread

Co-authored-by: Wei Ouyang &lt;oeway007@gmail.com&gt;
diff --git a/pyproject.toml b/pyproject.toml
@@ -14,7 +14,7 @@ requires-python = ">=3.9"
 dependencies = [
     'asciitree',
     'numpy>=1.21.1',
-    'fasteners',
+    'fasteners; sys_platform != "emscripten"',
     'numcodecs>=0.10.0',
 ]
 dynamic = [
diff --git a/zarr/sync.py b/zarr/sync.py
@@ -3,8 +3,6 @@
 from threading import Lock
 from typing import Protocol
 
-import fasteners
-
 
 class Synchronizer(Protocol):
     """Base class for synchronizers."""
@@ -49,6 +47,8 @@ def __init__(self, path):
         self.path = path
 
     def __getitem__(self, item):
+        import fasteners
+
         path = os.path.join(self.path, item)
         lock = fasteners.InterProcessLock(path)
         return lock

Original file line number	Diff line number	Diff line change
`@@ -14,7 +14,7 @@ requires-python = ">=3.9"`
`14`	`14`	`dependencies = [`
`15`	`15`	`'asciitree',`
`16`	`16`	`'numpy>=1.21.1',`
`17`		`- 'fasteners',`
	`17`	`+ 'fasteners; sys_platform != "emscripten"',`
`18`	`18`	`'numcodecs>=0.10.0',`
`19`	`19`	`]`
`20`	`20`	`dynamic = [`