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-rw-r--r--Lib/test/test_extcall.py87
1 files changed, 69 insertions, 18 deletions
diff --git a/Lib/test/test_extcall.py b/Lib/test/test_extcall.py
index 1f7f63042e..6b6c12de2e 100644
--- a/Lib/test/test_extcall.py
+++ b/Lib/test/test_extcall.py
@@ -66,17 +66,17 @@ Verify clearing of SF bug #733667
>>> g()
Traceback (most recent call last):
...
- TypeError: g() takes at least 1 argument (0 given)
+ TypeError: g() missing 1 required positional argument: 'x'
>>> g(*())
Traceback (most recent call last):
...
- TypeError: g() takes at least 1 argument (0 given)
+ TypeError: g() missing 1 required positional argument: 'x'
>>> g(*(), **{})
Traceback (most recent call last):
...
- TypeError: g() takes at least 1 argument (0 given)
+ TypeError: g() missing 1 required positional argument: 'x'
>>> g(1)
1 () {}
@@ -151,7 +151,7 @@ What about willful misconduct?
>>> g(1, 2, 3, **{'x': 4, 'y': 5})
Traceback (most recent call last):
...
- TypeError: g() got multiple values for keyword argument 'x'
+ TypeError: g() got multiple values for argument 'x'
>>> f(**{1:2})
Traceback (most recent call last):
@@ -263,29 +263,80 @@ the function call setup. See <http://bugs.python.org/issue2016>.
>>> f(**x)
1 2
-A obscure message:
+Too many arguments:
- >>> def f(a, b):
- ... pass
- >>> f(b=1)
+ >>> def f(): pass
+ >>> f(1)
+ Traceback (most recent call last):
+ ...
+ TypeError: f() takes 0 positional arguments but 1 was given
+ >>> def f(a): pass
+ >>> f(1, 2)
Traceback (most recent call last):
...
- TypeError: f() takes exactly 2 arguments (1 given)
+ TypeError: f() takes 1 positional argument but 2 were given
+ >>> def f(a, b=1): pass
+ >>> f(1, 2, 3)
+ Traceback (most recent call last):
+ ...
+ TypeError: f() takes from 1 to 2 positional arguments but 3 were given
+ >>> def f(*, kw): pass
+ >>> f(1, kw=3)
+ Traceback (most recent call last):
+ ...
+ TypeError: f() takes 0 positional arguments but 1 positional argument (and 1 keyword-only argument) were given
+ >>> def f(*, kw, b): pass
+ >>> f(1, 2, 3, b=3, kw=3)
+ Traceback (most recent call last):
+ ...
+ TypeError: f() takes 0 positional arguments but 3 positional arguments (and 2 keyword-only arguments) were given
+ >>> def f(a, b=2, *, kw): pass
+ >>> f(2, 3, 4, kw=4)
+ Traceback (most recent call last):
+ ...
+ TypeError: f() takes from 1 to 2 positional arguments but 3 positional arguments (and 1 keyword-only argument) were given
-The number of arguments passed in includes keywords:
+Too few and missing arguments:
- >>> def f(a):
- ... pass
- >>> f(6, a=4, *(1, 2, 3))
+ >>> def f(a): pass
+ >>> f()
Traceback (most recent call last):
...
- TypeError: f() takes exactly 1 positional argument (5 given)
- >>> def f(a, *, kw):
- ... pass
- >>> f(6, 4, kw=4)
+ TypeError: f() missing 1 required positional argument: 'a'
+ >>> def f(a, b): pass
+ >>> f()
Traceback (most recent call last):
...
- TypeError: f() takes exactly 1 positional argument (3 given)
+ TypeError: f() missing 2 required positional arguments: 'a' and 'b'
+ >>> def f(a, b, c): pass
+ >>> f()
+ Traceback (most recent call last):
+ ...
+ TypeError: f() missing 3 required positional arguments: 'a', 'b', and 'c'
+ >>> def f(a, b, c, d, e): pass
+ >>> f()
+ Traceback (most recent call last):
+ ...
+ TypeError: f() missing 5 required positional arguments: 'a', 'b', 'c', 'd', and 'e'
+ >>> def f(a, b=4, c=5, d=5): pass
+ >>> f(c=12, b=9)
+ Traceback (most recent call last):
+ ...
+ TypeError: f() missing 1 required positional argument: 'a'
+
+Same with keyword only args:
+
+ >>> def f(*, w): pass
+ >>> f()
+ Traceback (most recent call last):
+ ...
+ TypeError: f() missing 1 required keyword-only argument: 'w'
+ >>> def f(*, a, b, c, d, e): pass
+ >>> f()
+ Traceback (most recent call last):
+ ...
+ TypeError: f() missing 5 required keyword-only arguments: 'a', 'b', 'c', 'd', and 'e'
+
"""
import sys