bpo-31071: Avoid masking original TypeError in call with * unpacking (#2957)

when other arguments are passed.

1 files changed, 16 insertions, 0 deletions

diff --git a/Lib/test/test_extcall.py b/Lib/test/test_extcall.py
index 043df01311..2c1848337b 100644
--- a/Lib/test/test_extcall.py
+++ b/Lib/test/test_extcall.py
@@ -163,6 +163,10 @@ right error message? (Also check with other iterables.)
     Traceback (most recent call last):
       ...
     TypeError: myerror
+    >>> g(*range(1), *(broken() for i in range(1)))
+    Traceback (most recent call last):
+      ...
+    TypeError: myerror
 
     >>> class BrokenIterable1:
     ...     def __iter__(self):
@@ -172,6 +176,10 @@ right error message? (Also check with other iterables.)
     Traceback (most recent call last):
       ...
     TypeError: myerror
+    >>> g(*range(1), *BrokenIterable1())
+    Traceback (most recent call last):
+      ...
+    TypeError: myerror
 
     >>> class BrokenIterable2:
     ...     def __iter__(self):
@@ -182,6 +190,10 @@ right error message? (Also check with other iterables.)
     Traceback (most recent call last):
       ...
     TypeError: myerror
+    >>> g(*range(1), *BrokenIterable2())
+    Traceback (most recent call last):
+      ...
+    TypeError: myerror
 
     >>> class BrokenSequence:
     ...     def __getitem__(self, idx):
@@ -191,6 +203,10 @@ right error message? (Also check with other iterables.)
     Traceback (most recent call last):
       ...
     TypeError: myerror
+    >>> g(*range(1), *BrokenSequence())
+    Traceback (most recent call last):
+      ...
+    TypeError: myerror
 
 Make sure that the function doesn't stomp the dictionary