Using ConfigParse

[Zunbeltz Izaola]

Hi to all !

I've subclassed ConfigParse in the folowing way.

class DifracConfigParser(ConfigParser):
def __init__(self, defaults=None):
ConfigParser.__init__(self, defaults)
self.readfp(open('defaultdifrac.cfg'))

def save(self):
print "Enter save"
self.write(open('defaultdifrac.cfg','w'))
self.read(open('defaultdifrac.cfg'))
print "OUt save"


I use the values from the defaultdifrac.cfg file in my dialogs (using
wxpython) and change them via validators. After closing a dialog that
changes the values (after validating) i call de save method, but the
file is not changed.

Any Idea?

Thanks in advance

Zunbeltz


--
Zunbeltz Izaola Azkona | wmbizazz at lg dot ehu
dotes
Materia Kondentsatuaren Fisika Saila |
Zientzia eta Teknologia Fakultatea | Phone: 34946015326
Euskal Herriko Unibertsitatea |
PK 644 | Fax: 34 944648500
48080 Bilbo (SPAIN) |

 

[Peter Otten]

def save(self):
print "Enter save"
self.write(open('defaultdifrac.cfg','w'))
self.read(open('defaultdifrac.cfg'))
print "OUt save"

I would explicitly close the file before trying to read it.
.... f = file(fn, "w")
.... f.write(s)
.... if close: f.close()
.... return file(fn).read()
....''

Peter

 

[Zunbeltz Izaola]

I would explicitly close the file before trying to read it.

... f = file(fn, "w")
... f.write(s)
... if close: f.close()
... return file(fn).read()
...
''

Thanks for the sugestion but it doen't work, i don't know wy
CofigParser doesn't write the file

Zunbeltz

Peter

--
Zunbeltz Izaola Azkona | wmbizazz at lg dot ehu
dotes
Materia Kondentsatuaren Fisika Saila |
Zientzia eta Teknologia Fakultatea | Phone: 34946015326
Euskal Herriko Unibertsitatea |
PK 644 | Fax: 34 944648500
48080 Bilbo (SPAIN) |

 

[Peter Otten]

Thanks for the sugestion but it doen't work, i don't know wy
CofigParser doesn't write the file

I looked it up in the source: the read() method expects a filename or a
sequence of filenames. Incidentally that means, that every line in your
config-file is interpreted as a filename. It doesn't matter that none of
these files exist, as all IOErrors are silenced by the method.

self.readfp(open('defaultdifrac.cfg'))

or

self.read("defaultdifrac.cfg")

in your save() method instead of self.read(open('defaultdifrac.cfg')) should
fix the problem. That would of course mean that ConfigParser *does* write
the file, only doesn't read it back. Can you confirm that?

Peter

 

[A. Lloyd Flanagan]

I looked it up in the source: the read() method expects a filename or a
sequence of filenames. Incidentally that means, that every line in your
config-file is interpreted as a filename. It doesn't matter that none of
these files exist, as all IOErrors are silenced by the method.

I too looked at the source. I understand why it ignores IOErrors
(though I'm not convinced it's a good idea), but I think I see a
problem with the ConfigParse module. I would think it should raise
some error if it can't find any file at all in the list you provide.
It seems to me that would be more useful than having an empty object.

Of course, it's probably not something we could change now...

 

[Zunbeltz Izaola]

Thanks Peter and Lloyd. But the problem was on my code no on
ConfigParse. I was working in a module I think it was finished but the
problem was that after updating the values of the variables I did not
call the set funtion of the ConfigParse object.

Apologizes for bothering with silly questions :-(

Thanks again

Zunbeltz



--
Zunbeltz Izaola Azkona | wmbizazz at lg dot ehu
dotes
Materia Kondentsatuaren Fisika Saila |
Zientzia eta Teknologia Fakultatea | Phone: 34946015326
Euskal Herriko Unibertsitatea |
PK 644 | Fax: 34 944648500
48080 Bilbo (SPAIN) |