[duplicate-code] Fix crash when analysing empty function with docstring

Closes #4648

1 files changed, 7 insertions, 1 deletions

diff --git a/pylint/checkers/similar.py b/pylint/checkers/similar.py
index 967796b2b..5f421f054 100644
--- a/pylint/checkers/similar.py
+++ b/pylint/checkers/similar.py
@@ -218,7 +218,13 @@ def stripped_lines(
             if isinstance(n, (astroid.FunctionDef, astroid.AsyncFunctionDef))
         ]
         signature_lines = set(
-            chain(*(range(func.fromlineno, func.body[0].lineno) for func in functions))
+            chain(
+                *(
+                    range(func.fromlineno, func.body[0].lineno)
+                    for func in functions
+                    if func.body
+                )
+            )
         )
 
     strippedlines = []