Re: [Pythoncard-users] Import a file in TextArea

[Alex T. <al...@tw...>]

Brian Mahoney wrote:

>
> In the "for" loop of file f  the statement
> base.desc.text = line
> is SETTING base.desc.text to the latest value of line,
> I think you want to be APPENDING the value of each line
>
> for line in f:           #  f  is enough,  no readlines() is necessary
>     base.desc.text += line    #  appending
>
Although correct, this is perhaps not as efficient as it could be - 
string append isn't terribly fast in Python anyway, and updating the 
text in the component is a *lot* of work, done for each line. You could 
instead do:

lines = []
for line in f:
    lines.append(line)
base.desc.text = "".join(lines)

and it will do large files apparently instantaneously (as opposed to > 
10 seconds for the line-by-line method).

-- 
Alex Tweedly       http://www.tweedly.net



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