Help with super()

[Christopher J. Bottaro]

Why don't this code work?

import PRI

class Poscdnld_PYIO(PRI.BasicBatch):

def __init__(self, *argv):
super(Poscdnld_PYIO, self).__init__(*argv)

x = Poscdnld_PYIO()

I get this exception:
File "poscdnld_pyio.py", line 52, in __init__
super(Poscdnld_PYIO, self).__init__(*argv)
TypeError: super() argument 1 must be type, not classobj

What am I doing wrong? Thanks.

 

[Peter Otten]

Why don't this code work?

import PRI

class Poscdnld_PYIO(PRI.BasicBatch):

def __init__(self, *argv):
super(Poscdnld_PYIO, self).__init__(*argv)

x = Poscdnld_PYIO()

I get this exception:
File "poscdnld_pyio.py", line 52, in __init__
super(Poscdnld_PYIO, self).__init__(*argv)
TypeError: super() argument 1 must be type, not classobj

What am I doing wrong? Thanks.

super() does not work with classic classes:
.... def __init__(self):
.... super(A, self).__init__()
....Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "<stdin>", line 3, in __init__
TypeError: super() argument 1 must be type, not classobj

whereas:
.... def __init__(self):
.... super(A, self).__init__()
....<__main__.A object at 0x402ac02c>

Invoking

def __init__(self, *argv):
PRI.BasicBatch.__init__(self, *argv)

explicitly instead works as well unless you need cooperative methods which
are only possible with newstyle classes.

Peter

 

[Steven Bethard]

Why don't this code work?

import PRI

class Poscdnld_PYIO(PRI.BasicBatch):

def __init__(self, *argv):
super(Poscdnld_PYIO, self).__init__(*argv)

x = Poscdnld_PYIO()

I get this exception:
File "poscdnld_pyio.py", line 52, in __init__
super(Poscdnld_PYIO, self).__init__(*argv)
TypeError: super() argument 1 must be type, not classobj

What am I doing wrong? Thanks.

I don't know what PRI is, but I suspect that PRI.BasicBatch is a classic
class, not a new-style class. The super function only works for
new-style classes:
.... def __init__(self):
.... super(C, self).__init__()
....Traceback (most recent call last):
File "<interactive input>", line 1, in ?
.... def __init__(self):
.... super(C, self).__init__()
....

 

[Florian Lindner]

I don't know what PRI is, but I suspect that PRI.BasicBatch is a classic
class, not a new-style class. The super function only works for
new-style classes:

Never heard of new-stype and classiv-class... What are the differences?

Thx,

Florian

 

[Andy Gross]

Florian,

See: http://www.python.org/doc/newstyle.html

/arg

 

[Christopher J. Bottaro]

Thank you everyone for the help, that cleared it up for me.