Could someone with a better grasp of the material chime in to help iron this out so that we can possibly include it as either a tutorial or wiki material? I have to confess to not being familiar enough with the material to be able to add anything meaningful beyond helping to translate to the proper format for inclusion on wgo. :)
On Fri, Feb 21, 2014 at 6:38 PM, Stephen Kiel <snick.kiel@xxxxxxxxx> wrote:
Pat,
I did look into the DIR-SEPARATOR (DIR_SEPARATOR on python?) constant. It did not appear to be documented anywhere in the gimp docs that I could find with a search engine. From an old scheme script I found posted I was able to find the following:
The DIR-SEPARATOR constant appears to be just a "/" on platforms where the OS is Linux and "\" on platforms where the OS is Windows. The following is pasted from a Script-Fu Console and a Python-Fu Console (Linux).
*** Script-Fu Console
Welcome to TinyScheme
Copyright (c) Dimitrios Souflis
Script-Fu Console - Interactive Scheme Development
> (string-append "Yaba" DIR-SEPARATOR "Daba" DIR-SEPARATOR "Doo")
"Yaba/Daba/Doo"
*** PYTHON CONSOLE
GIMP 2.8.10 Python Console
Python 2.7.5 (default, Feb 11 2014, 10:29:30)
[GCC 4.8.2 20131212 (Red Hat 4.8.2-7)]
>>> import os
>>> print os.sep
/
>>> from gimpfu import *
>>> print DIR_SEPARATOR
Traceback (most recent call last):
File "<input>", line 1, in <module>
NameError: name 'DIR_SEPARATOR' is not defined
>>> print DIR-SEPARATOR
Traceback (most recent call last):
File "<input>", line 1, in <module>
NameError: name 'DIR' is not defined
>>> if DIR_SEPARATOR == "/":
... print "YES"
...
Traceback (most recent call last):
File "<input>", line 1, in <module>
NameError: name 'DIR_SEPARATOR' is not defined
>>>
In python, os.sep does the same job that we would expect from
what we see in the scheme example except it has the following
advantages:
It seems like os.sep would be a much better design choice *IF* we actually needed to determine a platform portable directory separator. As far as I can tell, we don't.
- It is documented
- It has a wide user base, so it should be robust
- It works in any python shell, so you can debug programs using wide range of tools.
- It works.
In the code I use python functions that take care of the separator.
e.g.
srcFile = os.path.join(srcPath, srcFile)
Python sticks in the right separator for the host OS.
From my point of view, it seems like using the DIR_SEPARATOR and manually concatenating strings would make the code clumsy. I did not see anywhere where knowing what the separator character was would be
an advantage.
I wanted to keep the focus of the tutorial on Automation and not get sidetracked too much on design and architecture. It is worth while to note that if you can design a block of code (like autoBase.py) that does not use the gimpfu library, you can run it on any python shell and use any debugging tools at your disposal. This is a real advantage over debugging in Gimp. So I view using a gimp constant instead of a python library function (os.sep) as kind of a mistake.
Please let me know if I missed something.
Stephen
On 2/20/2014 1:03 PM, Pat David wrote:
Stephen,
Just a couple of notes. There are some concerns about the introduction of the term "macro" in the tutorial and the sense with which it's used.
Also, saul has asked me to relay to you: "have him look into the DIR-SEPARATOR constant. Using it would obviate about half of his code."
If you can take a look at DIR-SEPARATOR to see if perhaps it can help streamline things a bit, that would be great. I'm also hoping others might be able to chime in with other suggestions as well.
There is a consideration of moving this to the wiki as opposed to wgo as well.
On Thu, Feb 20, 2014 at 1:37 PM, Pat David <patdavid@xxxxxxxxx> wrote:
Stephen,
I've converted the tutorial to HTML to fit the website. I've pushed it up along with the assets, and am now just waiting on someone to poke wgo for it to show up. Keep an eye on the tutorials page.
On Thu, Feb 20, 2014 at 1:29 PM, Stephen Kiel <snick.kiel@xxxxxxxxx> wrote:
Pat,
Thanks. Let me know if there are any issues.
StephenOn Feb 20, 2014 7:27 AM, "Pat David" <patdavid@xxxxxxxxx> wrote:
Hi Stephen!
You can just leave it as an ODT file. I'll make the stylistic changes required to fit the website HTML.
Give me a little time and I'll make the conversion and get it up to test.
Thanks for the contribution!
--
pat david
--
pat david
--
pat david
-- Stephen Kiel 26602 Strafford Mission Viejo, CA 92692 Mobile/SMS (949) 702-1993 Home (949) 367-2915 snick.kiel@xxxxxxxxx http://stephenkiel.blogspot.com/
pat david
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