bpo-36232: Improve error message on dbm.open() when the db doesn't exist (GH-12060)
diff --git a/Lib/dbm/__init__.py b/Lib/dbm/__init__.py
index 6831a84..f65da52 100644
--- a/Lib/dbm/__init__.py
+++ b/Lib/dbm/__init__.py
@@ -82,7 +82,8 @@
# file doesn't exist and the new flag was used so use default type
mod = _defaultmod
else:
- raise error[0]("need 'c' or 'n' flag to open new db")
+ raise error[0]("db file doesn't exist; "
+ "use 'c' or 'n' flag to create a new db")
elif result == "":
# db type cannot be determined
raise error[0]("db type could not be determined")
diff --git a/Misc/NEWS.d/next/Library/2019-03-20-15-13-18.bpo-36366.n0eav_.rst b/Misc/NEWS.d/next/Library/2019-03-20-15-13-18.bpo-36366.n0eav_.rst
index a435048..8d1f9d9 100644
--- a/Misc/NEWS.d/next/Library/2019-03-20-15-13-18.bpo-36366.n0eav_.rst
+++ b/Misc/NEWS.d/next/Library/2019-03-20-15-13-18.bpo-36366.n0eav_.rst
@@ -1,4 +1,4 @@
Calling ``stop()`` on an unstarted or stopped :func:`unittest.mock.patch`
object will now return `None` instead of raising :exc:`RuntimeError`,
making the method idempotent.
-Patch byKarthikeyan Singaravelan.
+Patch by Karthikeyan Singaravelan.
diff --git a/Misc/NEWS.d/next/Library/2019-04-06-20-25-25.bpo-36232.SClmhb.rst b/Misc/NEWS.d/next/Library/2019-04-06-20-25-25.bpo-36232.SClmhb.rst
new file mode 100644
index 0000000..25290be
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2019-04-06-20-25-25.bpo-36232.SClmhb.rst
@@ -0,0 +1,2 @@
+Improve error message when trying to open existing DBM database that
+actually doesn't exist. Patch by Marco Rougeth.