Details
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Type:
Bug
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Status: Open (View Workflow)
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Priority:
Blocker
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Resolution: Unresolved
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Affects Version/s: master
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Fix Version/s: None
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Component/s: PyROOT
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Labels:None
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Environment:
ROOT master@33007b74
Description
Hello,
This example, taken from the front page https://cppyy.readthedocs.io/en/latest/ gives an error on last line if cppyy under ROOT is used:
cppyy.cppdef(""" |
class MyClass { |
public: |
MyClass(int i) : m_data(i) {} |
virtual ~MyClass() {}
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virtual int add_int(int i) { return m_data + i; } |
int m_data; |
};""") |
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from cppyy.gbl import MyClass |
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m = MyClass(42) |
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cppyy.cppdef(""" |
void say_hello(MyClass* m) { |
std::cout << "Hello, the number is: " << m->m_data << std::endl; |
}""") |
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MyClass.say_hello = cppyy.gbl.say_hello
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m.say_hello()
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m.m_data = 13 |
m.say_hello()
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class PyMyClass(MyClass): |
def add_int(self, i): # python side override (CPython only)
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return self.m_data + 2*i |
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cppyy.cppdef("int callback(MyClass* m, int i) { return m->add_int(i); }") |
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cppyy.gbl.callback(m, 2) |
cppyy.gbl.callback(PyMyClass(1), 2) |
---------------------------------------------------------------------------
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TypeError Traceback (most recent call last)
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<ipython-input-23-a22c5c531ce6> in <module> |
----> 1 cppyy.gbl.callback(PyMyClass(1), 2) |
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TypeError: none of the 2 overloaded methods succeeded. Full details: |
no constructor available for 'MyClass' |
MyClass::MyClass(const MyClass&) => |
TypeError: could not convert argument 1 |
This example, however, works under standalone cppyy of the same version (1.6.2).
Similarly, this tutorial https://bitbucket.org/wlav/cppyy/src/master/doc/tutorial/CppyyTutorial.ipynb?viewer=nbviewer&fileviewer=notebook-viewer%3Anbviewer fails on In [10] if it is run under ROOT's cppyy:
--------------------------------------------------------------------------
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TypeError Traceback (most recent call last)
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<ipython-input-11-e5a39e3833ad> in <module> |
2 Integer2 = cppyy.gbl.Math.Integer2 # first time a new namespace is used, it can not be imported from |
3 v2 = vector[Integer2]() |
----> 4 v2 += [Integer2(j) for j in range(10)] |
5 |
6 # now test the effect of the pythonizor: |
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<ipython-input-11-e5a39e3833ad> in <listcomp>(.0) |
2 Integer2 = cppyy.gbl.Math.Integer2 # first time a new namespace is used, it can not be imported from |
3 v2 = vector[Integer2]() |
----> 4 v2 += [Integer2(j) for j in range(10)] |
5 |
6 # now test the effect of the pythonizor: |
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TypeError: none of the 3 overloaded methods succeeded. Full details: |
Integer2::Integer2(Math::Integer2&&) =>
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TypeError: could not convert argument 1 |
Integer2::Integer2(const Math::Integer2&) => |
TypeError: could not convert argument 1 |
Integer2::Integer2() =>
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TypeError: takes at most 0 arguments (1 given) |
The tutorial gives no error under standalone cppyy 1.6.2 (if ROOT is not installed).
Is cppyy under ROOT passing all cppyy's tests?
Cheers,
Jiri