sudhanshu gautam wrote:
<snip>
2.Now another file in which I want to extend that same parent class is here
.First code running successfully but in another one having problem
'This another source code will represent the new Entry of database'
import title
class Newstudent(Studentdatabase):
def __init__(self,name,age,standard,place,dateofbirth,sex,marks):
Studentdatabase.__init__(self,name,age,standard,place,dateofbirth,sex)
self.marks=marks
print 'The new data base has name of new students',self.name
def tell(self):
Studentdatabase.tell(self)
print 'The marks of the student is',self.marks
s1=Newstudent('Rajiv',21,'M.B.A','MUMBAI','12 JAN,1987','MALE',267)
s2=Newstudent('VIKASH',22,'M.B.A','DELHI','12 JAN 1985','MALE',234)
s3=Newstudent('SAURAV',23,'B.TECH','BIHAR','12 JAN 1984','MALE',233)
new=[s1,s2,s3]
for newstudent in new:
newstudent.tell()
Now tell me that how I can extend it
You should tell the error message that you get, not just say "an
error". So we must guess.
If you want to refer to a name (Studentdatabase) in another module, you
must import that module. Assuming some things about your sys.path, that
could be as simple as
import title
This you did correctly. Then referencing the name inside that other
module is done by using
class Newstudent(title.Studentdatabase):
Note there is another choice, suitable if there's really only a single
name you want to import:
from title import Studentdatabase
That way, the name can be used without a prefix. I usually prefer the
first form, but the second has definite uses, especially if the import
is of a module several levels down in a package hierarchy.
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