Python C-API: how to define nested classes?
Hi, I'm currently writing a C extension module for python using the raw C-API. I would like to be able to define nested classes like in the following python code class A: class B: def __init__(self): self.i = 2 def __init__(self): self.b = A.B() a = A() b = A.B() print(a.b.i) print(b.i) How can I create such nested class with the C-API? Serge WEINSTOCK ___ This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and delete this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is prohibited. Please refer to http://www.bnpparibas.co.uk/en/email-disclaimer/ for additional disclosures. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python C-API: how to define nested classes?
Serge WEINSTOCK於 2013年5月16日星期四UTC+8下午4時55分07秒寫道： Hi, I'm currently writing a C extension module for python using the raw C-API. I would like to be able to define nested classes like in the following python code class A: class B: def __init__(self): self.i = 2 def __init__(self): self.b = A.B() a = A() b = A.B() print(a.b.i) print(b.i) How can I create such nested class with the C-API? Serge WEINSTOCK ___ This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and delete this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is prohibited. Please refer to http://www.bnpparibas.co.uk/en/email-disclaimer/ for additional disclosures. The nested class is just defining the scope of the nested class object that can be used solely in all outer proper classes. It is not very useful in a language which supports dynamical run-time attribute binding in the instance level. in the outer -- http://mail.python.org/mailman/listinfo/python-list
Re: Python C-API: how to define nested classes?
Serge WEINSTOCK, 16.05.2013 10:55: I'm currently writing a C extension module for python using the raw C-API. I would like to be able to define nested classes like in the following python code class A: class B: def __init__(self): self.i = 2 def __init__(self): self.b = A.B() a = A() b = A.B() print(a.b.i) print(b.i) How can I create such nested class with the C-API? Assuming you really mean Python classes and not extension types, you might get away with defining them separately and then assigning A.B = B Recent Python versions added a __qualname__ attribute for classes that you might want to fix up in this case. If you need better compatibility, consider writing your code in Cython. Stefan -- http://mail.python.org/mailman/listinfo/python-list
