2to3: apply exec fixer results.

This changes the `exec` command to the `exec` function.

1 files changed, 2 insertions, 2 deletions

diff --git a/doc/sphinxext/plot_directive.py b/doc/sphinxext/plot_directive.py
index a91b436a7..7fa827664 100644
--- a/doc/sphinxext/plot_directive.py
+++ b/doc/sphinxext/plot_directive.py
@@ -456,8 +456,8 @@ def run_code(code, code_path, ns=None):
             if ns is None:
                 ns = {}
             if not ns:
-                exec setup.config.plot_pre_code in ns
-            exec code in ns
+                exec(setup.config.plot_pre_code, ns)
+            exec(code, ns)
         except (Exception, SystemExit) as err:
             raise PlotError(traceback.format_exc())
     finally: