Make trace and doctest play nice together (issue 1429818). Will backport.
diff --git a/Lib/doctest.py b/Lib/doctest.py
index e874a26..3c977e1 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -320,8 +320,19 @@
"""
def __init__(self, out):
self.__out = out
+ self.__debugger_used = False
pdb.Pdb.__init__(self, stdout=out)
+ def set_trace(self):
+ self.__debugger_used = True
+ pdb.Pdb.set_trace(self)
+
+ def set_continue(self):
+ # Calling set_continue unconditionally would break unit test
+ # coverage reporting, as Bdb.set_continue calls sys.settrace(None).
+ if self.__debugger_used:
+ pdb.Pdb.set_continue(self)
+
def trace_dispatch(self, *args):
# Redirect stdout to the given stream.
save_stdout = sys.stdout