[EMAIL PROTECTED] schrieb:
> Hi,
>
> I'm using Jython in combination with java.
>
> I wrote a jython skript, which calls a function from another jython
> module called library.py.
>
> So, executing the function genData() in skript .py runs without
> problem but if I execute the same function again, the data from the
> first run is stored somehow and is added to the new data.
>
> So, if you look at the result:
> #1 in DatenTypen.py return an empty list each time the program runs.
> Ok ... clear so far
> #2 in library.py returns an empty list, when the program runs for the
> first time ... but when the function is
> called again, the list contains an element. Each time you call the
> function again, one element is added!
> Why?? out.abschnitte should be the same as printed in #1 or not?
>
> Here is the code:
>
> skript.py
> ======
> from library import *
>
> def genData():
>
>
> out=DMS_sendFiles_ein_Abschnitt([["testdata1.test","testdata2.test","testdata3.test"]])
>
> return out
>
> library.py
> =======
> from DatenTypen import AusgangsDatenDeichMonitor
> from DatenTypen import DMS_Abschnitt
> from DatenTypen import DMS_GeoData
> from DatenTypen import DMS_GeoDataFile
>
> def DMS_sendFiles_ein_Abschnitt(filelist):
>
> out=AusgangsDatenDeichMonitor()
>
> print "out.abschnitte: "+str(out.abschnitte) #2
>
> abschnitt=DMS_Abschnitt()
>
> for f in filelist:
> data=DMS_GeoData()
>
> for layer in f:
>
> datalayer=DMS_GeoDataFile()
>
> datalayer.dateiname=layer
>
> datalayer.dateiinhalt="TEST"
>
> data.layerFiles.append(datalayer)
>
> abschnitt.bildSequenze.append(data)
>
> out.abschnitte.append(abschnitt)
>
> return out
>
> DatenTypen.py
> ===========
>
> class AusgangsDatenDeichMonitor:
>
> abschnitte=[]
>
> def __init__(self):
> abschnitte=[]
> print "Abschnitt in DatenTypen: "+str(abschnitte) #1
>
> class DMS_Abschnitt:
>
> bildSequenze=[]
>
> def __init__(self):
> abschnittsNummer=0
> bildSequenze=[]
>
> class DMS_GeoData:
>
> layerFiles=[]
>
> def __init__(self):
> layerFiles=[]
>
> class DMS_GeoDataFile:
>
> dateiinhalt="dateiinhalt"
>
> dateiname="dateiname"
>
> zipped=False
>
> def __init__(self):
> dateiinhalt="dateiinhalt"
> dateiname="dateiname"
> zipped=False
>
> So, I read about deleting Instances with "del" ... but it does not
> work at all.
>
> Any Ideas?
I think you should read a python-tutorial. The above code looks as if
you believe that
class Foo:
name = value
def __init__(self):
name = other_value
will create a class Foo, which then has instances with the property
"name", and that this is bound to other_value. Python isn't doing that.
name in the above example (and e.g. abschnitte in yours) are
class-attributes. That means that ALL instances of Foo share that name!!!
What you have to do is this:
class Foo:
def __init__(self, other_value):
self.name = other_value
please note the self in front of name!
Or, within your example:
class AusgangsDatenDeichMonitor:
def __init__(self):
self.abschnitte=[]
print "Abschnitt in DatenTypen: "+str(abschnitte) #1
There are a great many tutorials for python + OO out there - go read one
(or several).
Regards,
Diez
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