On Fri, Jun 17, 2016 at 11:42 AM boB Stepp wrote:
> On Thu, Jun 16, 2016 at 11:40 AM, Alan Gauld via Tutor
> wrote:
> > On 16/06/16 16:38, boB Stepp wrote:
> >
> >> class FTPFiles(FTP, object):
> >> """FTP files to Windows server location(s)."""
>
> I was struggling to come up with a good na
On 17/06/16 16:41, boB Stepp wrote:
>> Inheritance is a powerful tool but it carries lots of potential for
>> problems too,...
>
> I looked up LSP last night. I can see how I can easily get burned
> even on something seemingly simple. One example, which I imagine is
> often used, is of a square
I guess I did not emphasize enough that I was just starting to think
through this. The code I posted yesterday was more in the way of
exploratory code, trying to understand how to implement inheritance,
using new-style classes (I am trying to integrate the work with Python
3 at home as much as pos
On Thu, Jun 16, 2016 at 11:40 AM, Alan Gauld via Tutor wrote:
> On 16/06/16 16:38, boB Stepp wrote:
>
>> class FTPFiles(FTP, object):
>> """FTP files to Windows server location(s)."""
>
> OK, First comment. You describe this as an action(verb)
> rather than a noun. Classes should represent nou
Some futher thoughts:
On Thu, Jun 16, 2016 at 10:38:13AM -0500, boB Stepp wrote:
> class FTPFiles(FTP, object):
> """FTP files to Windows server location(s)."""
>
> def __init__(self, host=server_ip, user=user, passwd=passwd):
> """Initialize FTPFiles object. Normally the default
On Thu, Jun 16, 2016 at 10:38:13AM -0500, boB Stepp wrote:
> I am extremely gradually trying to dip my big toe into the waters of
> writing classes.
[...]
> What I learned today:
>
> 1) FTP from ftplib appears to be an old-style class.
>
> 2) I can't just use "class FTPFiles(FTP)" or I will b
On 16/06/16 16:38, boB Stepp wrote:
> class FTPFiles(FTP, object):
> """FTP files to Windows server location(s)."""
OK, First comment. You describe this as an action(verb)
rather than a noun. Classes should represent nouns
(objects) not actions. FTP represents a protocol
connection with which
I am extremely gradually trying to dip my big toe into the waters of
writing classes. I have a little bit of extra time at work today, so
I thought I would start writing a class to replace a bunch of shell
FTP scripts I've used in various programs that would be flexible
enough to be reused whereve
