fix formatting

jdidion · Jan 6, 2022 · 555efbd · 555efbd
1 parent 6ce1411
commit 555efbd
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/xphyle/__init__.py b/xphyle/__init__.py
@@ -1238,9 +1238,9 @@ def xopen(
         if mode.readable:
             target = check_readable_file(target)
             if validate or guess_format:
-                guess = FORMATS.guess_format_from_file_header(
-                    target
-                ) or FORMATS.guess_compression_format(target)
+                guess = FORMATS.guess_format_from_file_header(target)
+                if guess is None:
+                    guess = FORMATS.guess_compression_format(target)
         else:
             target = check_writable_file(target)
             # If overwrite=False, check that the file doesn't already exist