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SF patch #685738 by Michael Stone.

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This changes the default __new__ to refuse arguments iff tp_init is the
default __init__ implementation -- thus making it a TypeError when you
try to pass arguments to a constructor if the class doesn't override at
least __init__ or __new__.
This commit is contained in:
Guido van Rossum 2003-02-13 16:30:16 +00:00
parent 0c016a9590
commit 298e421453
4 changed files with 39 additions and 12 deletions
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16
Lib/test/test_descr.py
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@ -3694,8 +3694,8 @@ def subclass_right_op():
def __rdiv__(self, other):
return "C.__rdiv__"
vereq(C(1) / 1, "C.__div__")
vereq(1 / C(1), "C.__rdiv__")
vereq(C() / 1, "C.__div__")
vereq(1 / C(), "C.__rdiv__")
# Case 3: subclass of new-style class; here it gets interesting
@ -3705,8 +3705,8 @@ def subclass_right_op():
def __rdiv__(self, other):
return "D.__rdiv__"
vereq(D(1) / C(1), "D.__div__")
vereq(C(1) / D(1), "D.__rdiv__")
vereq(D() / C(), "D.__div__")
vereq(C() / D(), "D.__rdiv__")
# Case 4: this didn't work right in 2.2.2 and 2.3a1
@ -3715,10 +3715,10 @@ def subclass_right_op():
vereq(E.__rdiv__, C.__rdiv__)
vereq(E(1) / 1, "C.__div__")
vereq(1 / E(1), "C.__rdiv__")
vereq(E(1) / C(1), "C.__div__")
vereq(C(1) / E(1), "C.__div__") # This one would fail
vereq(E() / 1, "C.__div__")
vereq(1 / E(), "C.__rdiv__")
vereq(E() / C(), "C.__div__")
vereq(C() / E(), "C.__div__") # This one would fail
def dict_type_with_metaclass():
if verbose: