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-rw-r--r--gn3/computations/qtlreaper.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/gn3/computations/qtlreaper.py b/gn3/computations/qtlreaper.py
index 166d2dd..d1ff4ac 100644
--- a/gn3/computations/qtlreaper.py
+++ b/gn3/computations/qtlreaper.py
@@ -34,7 +34,8 @@ def create_output_directory(path: str):
     """Create the output directory at `path` if it does not exist."""
     try:
         os.mkdir(path)
-    except OSError:
+    except FileExistsError:
+        # If the directory already exists, do nothing.
         pass
 
 def run_reaper(