Issue #5633: Fixed timeit when the statement is a string and the setup is not.

1 files changed, 4 insertions, 3 deletions

diff --git a/Lib/timeit.py b/Lib/timeit.py
index cf7446d8c1..0b1c601c97 100755
--- a/Lib/timeit.py
+++ b/Lib/timeit.py
@@ -65,7 +65,7 @@ default_timer = time.perf_counter
 # in Timer.__init__() depend on setup being indented 4 spaces and stmt
 # being indented 8 spaces.
 template = """
-def inner(_it, _timer):
+def inner(_it, _timer{init}):
     {setup}
     _t0 = _timer()
     for _i in _it:
@@ -119,9 +119,10 @@ class Timer:
             stmt = reindent(stmt, 8)
             if isinstance(setup, str):
                 setup = reindent(setup, 4)
-                src = template.format(stmt=stmt, setup=setup)
+                src = template.format(stmt=stmt, setup=setup, init='')
             elif callable(setup):
-                src = template.format(stmt=stmt, setup='_setup()')
+                src = template.format(stmt=stmt, setup='_setup()',
+                                      init=', _setup=_setup')
                 ns['_setup'] = setup
             else:
                 raise ValueError("setup is neither a string nor callable")