Wait for subprocess to prevent ResourceWarning

pygraphviz · Apr 13, 2018 · 14580d8 · 14580d8
1 parent 36120f2
commit 14580d8
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/pygraphviz/agraph.py b/pygraphviz/agraph.py
@@ -1326,6 +1326,7 @@ def _run_prog(self, prog='nop', args=''):
 
         for t in threads:
             t.join()
+        p.wait()
 
         if not data:
             raise IOError(b"".join(errors).decode(self.encoding))