From 4a6d5737ccde3fb009bc5bd62220d5d0dc355b83 Mon Sep 17 00:00:00 2001
From: Martin Durant <martindurant@users.noreply.github.com>
Date: Fri, 22 Nov 2024 11:35:16 -0500
Subject: [PATCH] x for abstract file (#1756)

---
 fsspec/spec.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fsspec/spec.py b/fsspec/spec.py
index 4e8d2fdd0..ad8703b26 100644
--- a/fsspec/spec.py
+++ b/fsspec/spec.py
@@ -1740,7 +1740,7 @@ def __init__(
 
         self.kwargs = kwargs
 
-        if mode not in {"ab", "rb", "wb"}:
+        if mode not in {"ab", "rb", "wb", "xb"}:
             raise NotImplementedError("File mode not supported")
         if mode == "rb":
             if size is not None: