1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/dis.py b/Lib/dis.py
index ea50f56..ccbd65b 100644
--- a/Lib/dis.py
+++ b/Lib/dis.py
@@ -384,7 +384,7 @@ def _disassemble_bytes(code, lasti=-1, varnames=None, names=None,
                        constants=None, cells=None, linestarts=None,
                        *, file=None, line_offset=0):
     # Omit the line number column entirely if we have no line number info
-    show_lineno = linestarts is not None
+    show_lineno = bool(linestarts)
     if show_lineno:
         maxlineno = max(linestarts.values()) + line_offset
         if maxlineno >= 1000: