create dynamic instance

[Ray]

class Test:
def __init__(self):
self.value=0
def change(self, val):
self.value=val

if __name__=='__main__':
for x in range(10):
x=Test()
"""
the question is how do i call x.value outside of that for loop?
something like
print x.value ?
"""

thanks for any help.

 

[MRAB]

class Test:
def __init__(self):
self.value=0
def change(self, val):
self.value=val

if __name__=='__main__':
for x in range(10):
x=Test()
"""
the question is how do i call x.value outside of that for loop?
something like
print x.value ?
"""

thanks for any help.

Have you tried it?

Why are you using the same name for the loop variable and the instance
you're creating?

 

[Ray]

Have you tried it?

Why are you using the same name for the loop variable and the instance
you're creating?

yes. I need to create instance. the code above is just a example.
on real code, it read a dict, and create the instance from dict.keys()
name.
that dict is build dynamic from database.

 

[Andre Alexander Bell]

if __name__=='__main__':
for x in range(10):
x=Test()
"""
the question is how do i call x.value outside of that for loop?
something like
print x.value ?
"""

You would have to keep references to your Test objects (untested code):

if __name__ == '__main__':
test_objects = []
for x in range(10):
test_objects[x] = Test()
print test_objects[0].value
...

You may want to rewrite this as a list comprehension

if __name__ == '__main__':
test_objects = [Test() for i in range(10)]
print test_objects[0].value


Andre

 

[Ray]

thanks a lot. I was really stupid.
of course I should keep a references to use it later.