Merge pull request #572 from rhpvorderman/patch-3

Force xopen to use the main thread when cores==1
marcelm · Oct 6, 2021 · d75f110 · d75f110
2 parents d31f8b1 + 02b42c1
commit d75f110
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/cutadapt/__main__.py b/src/cutadapt/__main__.py
@@ -1021,7 +1021,7 @@ def warn_if_en_dashes(args):
 
 
 def estimate_compression_threads(cores: int) -> Optional[int]:
-    return max(0, min(cores, 4))
+    return max(0, min(cores - 1, 4))
 
 
 def is_any_output_stdout(args):