J
Jason Friedman
Hi, what is the difference between:
def MyClass(object):
pass
and
def MyClass():
pass
def MyClass(object):
pass
and
def MyClass():
pass
A
Alf P. Steinbach
* Jason Friedman:
If you really meant 'def', then the first is a routine taking one argument, and
the second is a routine of no arguments.
If you meant 'class' instead of 'def', then it depends on the Python version.
In Py2 the first then defines a new-style class, while the second defines an
old-style class. E.g. you can see some difference by checking with 'isinstance'.
In Py3 there's no difference.
Cheers & hth.,
- Alf
If you really meant 'def', then the first is a routine taking one argument, and
the second is a routine of no arguments.
If you meant 'class' instead of 'def', then it depends on the Python version.
In Py2 the first then defines a new-style class, while the second defines an
old-style class. E.g. you can see some difference by checking with 'isinstance'.
In Py3 there's no difference.
Cheers & hth.,
- Alf
S
Steve Holden
Interesting. I actually read "class" for "def" and replied accordingly.Alf said:
As can plainly be seen ...
regards
Steve
A
Alf P. Steinbach
* Steve Holden:
Yes, the names act as comments about intent.
Such comments can be misleading about what the code actually does.
Since I think you're very interested in the human aspect of this I suggest you
try to find information about how master chess players remember chess boards. As
I recall, they find it really difficult to remember random boards, while boards
that represent actual chess games are remembered at a glance. Indicating that
what's remembered is at a much higher level of abstraction than piece positions.
Cheers,
- Alf
Yes, the names act as comments about intent.
Such comments can be misleading about what the code actually does.
Since I think you're very interested in the human aspect of this I suggest you
try to find information about how master chess players remember chess boards. As
I recall, they find it really difficult to remember random boards, while boards
that represent actual chess games are remembered at a glance. Indicating that
what's remembered is at a much higher level of abstraction than piece positions.
Cheers,
- Alf
E
Ethan Furman
Steve said:
Funny, so did I.
I'm sure it had something to do with the subject line.
~Ethan~