From 50131e137eeab8572872caa85d7907486ddbcb28 Mon Sep 17 00:00:00 2001
From: jesko <rattle@nullteilerfrei.de>
Date: Tue, 28 Nov 2023 11:27:03 +0100
Subject: [PATCH] prevent accidental use of non-int typecodes

---
 refinery/lib/chunks.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/refinery/lib/chunks.py b/refinery/lib/chunks.py
index f10ab0fb17..ffabd48e79 100644
--- a/refinery/lib/chunks.py
+++ b/refinery/lib/chunks.py
@@ -11,9 +11,7 @@
 
 
 _BIG_ENDIAN = sys.byteorder == 'big'
-_TYPE_CODES = {
-    array.array(t).itemsize: t for t in array.typecodes if t.isupper()
-}
+_TYPE_CODES = {array.array(t).itemsize: t for t in 'BHILQ'}
 
 
 def unpack(data: bytes, blocksize: int, bigendian: bool = False, step: int = 0) -> Iterable[int]: