"Ryan Krauss" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
Is there a way for a Python instance to access its own code
(especially the __init__ method)? And if there is, is there a clean
way to write the modified code back to a file? I assume that if I
can get the code as a list of strings, I can output it to a file
easily enough.
You are talking about writing code from and to a file. I think I had a
similar problem, because I wanted a python class to contains some persistent
runtime variables (fx the date of last backup) I didn't found a solution in
the python library so I wrote a little class myself:
import cPickle
class Persistent:
def __init__(self,filename):
self.filename=filename
def save(self):
f=file(self.filename, 'wb')
try:
for i in vars(self):
val=vars(self)[i]
if not i[0:2]=='__':
cPickle.dump(i,f)
cPickle.dump(val,f)
finally:
f.close()
def load(self):
f=file(self.filename)
try:
while True:
name=cPickle.load(f)
value=cPickle.load(f)
setattr(self,name,value)
except EOFError:
f.close()
f.close()
You just use it like (the file has to exist - easy to change):
p=Persistent('file.obj')
p.load()
p.a=0.12345
p.b=0.21459
p.save()
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