Maybe this question will look simple but I’m trying to look at some member

Question

Asked: June 12, 20262026-06-12T15:34:24+00:00 2026-06-12T15:34:24+00:00

Maybe this question will look simple but I’m trying to look at some member variables from within ipdb and I cannot see how.

Example:

class MyClass( object ):
    def __init__( self, p ):
        self.__p = p
        pass                   # <--- breakpoint here!

I am sure that p is correct. In the debugger I enter:

ipdb> (self.__p)

and I get the following error message:

* * *AttributeError: ‘MyClass’ object has no attribute ‘__p’

It seems that self is the class, not the instance for the debugger.

Any idea about how to perform what I do?

I use Python 2.7.3 on IPython 0.12.1 on Kubuntu 12.04 – 64 bits.

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Editorial Team · Answer 1 · 2026-06-12T15:34:25+00:00

Editorial Team

See here for the reason, this is Pythons way of having “private” variables.

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