diff --git a/Lib/bdb.py b/Lib/bdb.py
index 75d6113576372e..56ddfc2cf4756b 100644
--- a/Lib/bdb.py
+++ b/Lib/bdb.py
@@ -33,6 +33,7 @@ def __init__(self, skip=None):
self.breaks = {}
self.fncache = {}
self.frame_returning = None
+ self.botframe = None
self._load_breaks()
diff --git a/Lib/pdb.py b/Lib/pdb.py
index ff40f7b2476a38..84102f8f50061c 100755
--- a/Lib/pdb.py
+++ b/Lib/pdb.py
@@ -1728,6 +1728,8 @@ def main():
print("Running 'cont' or 'step' will restart the program")
t = sys.exc_info()[2]
pdb.interaction(None, t)
+ if pdb._user_requested_quit:
+ break
print("Post mortem debugger finished. The " + mainpyfile +
" will be restarted")
diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py
index 0724b666a3bf8d..f8b52823be41ae 100644
--- a/Lib/test/test_pdb.py
+++ b/Lib/test/test_pdb.py
@@ -1695,6 +1695,20 @@ def test_module_without_a_main(self):
self.assertIn("ImportError: No module named t_main.__main__",
stdout.splitlines())
+ def test_package_without_a_main(self):
+ pkg_name = 't_pkg'
+ module_name = 't_main'
+ os_helper.rmtree(pkg_name)
+ modpath = pkg_name + '/' + module_name
+ os.makedirs(modpath)
+ with open(modpath + '/__init__.py', 'w') as f:
+ pass
+ self.addCleanup(os_helper.rmtree, pkg_name)
+ stdout, stderr = self._run_pdb(['-m', modpath.replace('/', '.')], "")
+ self.assertIn(
+ "'t_pkg.t_main' is a package and cannot be directly executed",
+ stdout)
+
def test_blocks_at_first_code_line(self):
script = """
#This is a comment, on line 2
diff --git a/Misc/NEWS.d/next/Library/2021-06-29-21-17-17.bpo-44461.acqRnV.rst b/Misc/NEWS.d/next/Library/2021-06-29-21-17-17.bpo-44461.acqRnV.rst
new file mode 100644
index 00000000000000..02e25e928b9cff
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2021-06-29-21-17-17.bpo-44461.acqRnV.rst
@@ -0,0 +1 @@
+Fix bug with :mod:`pdb`'s handling of import error due to a package which does not have a ``__main__`` module
\ No newline at end of file
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