I think you should be using some function to push in the data, not
referencing it with an offset address and then trying to push in.
The Python documents should give you the required information about the
same.
--
Sayantan Bhattacharya
[Sent from pine@dev-machine]
On Sun, 19 Aug 2018, ankur gupta wrote:
Dear Sayantan, Mohit
Tried executing by implementing following change
class STUDENT:
no_of_students=0
def __init__(self,roll,name,present,absent):
self.roll=roll
self.name=name
self.present=present
self.absent=absent
STUDENT.no_of_students+=1
std= []
n='Y'
i=0
while n=='Y' or n=='y':
roll=input("ENTER NAME: ")
name=input("ENTER ROLL NO:")
present=input("ENTER NO. OF DAYS PRESENT:")
absent=input("ENTER NO. OF DAYS ABSENT:")
std[i] = STUDENT(roll,name,present,absent)
n=input("ENTER MORE RECORDS (Y/y)?...")
i+1
Received following error code
ankur@ankur-Lenovo-G50-80:~/PycharmProjects$ cd /home/ankur/PycharmProjects ; env
"PYTHONIOENCODING=UTF-8"
"PYTHONUNBUFFERED=1" /home/ankur/anaconda3/bin/python
/home/ankur/.vscode/extensions/ms-python.python-2018.4.0/pythonFiles/PythonTools/visualstudio_py_launcher.py
/home/ankur/PycharmProjects 39355 34806ad9-833a-4524-8cd6-18ca4aa74f14
RedirectOutput,RedirectOutput
"/home/ankur/PycharmProjects/STUDENTS ATTENDANCE.PY"
ENTER NAME: ANKUR
ENTER ROLL NO:1ENTER NO. OF DAYS PRESENT:12ENTER NO. OF DAYS ABSENT:8Traceback
(most recent call last):
File "/home/ankur/PycharmProjects/STUDENTS ATTENDANCE.PY", line 18, in
<module>
std[i] = STUDENT(roll,name,present,absent)
IndexError: list assignment index out of range
Pastebin page has been removed therefor attaching file along the mail
Thanks
Ankur Gupta
On Sun, Aug 19, 2018 at 3:59 PM Sayantan <skb655...@gmail.com> wrote:
Hello Ankur,
A few things before we take the program in context:
1. Always paste the code in a page(pastebin/paste.ubuntu.com & the like)
so that the indentation remains proper. This will help the members to
easily figure out the issue with the code.
2. Always refer to the error message provided by the interpreter before
you approach an audience. You, may have in this case, already done that.
This is just a suggestion.
Now, back to the code, the error is because there is no
definition/information about 'std' in the code. The interpreter doesn't
know in this case the type of 'std' itself. As a result, when you are
trying to push a value into the std[i] variable/memory(a collection is
what you have in mind), the interpreter is spewing this error message.
Defining std = [] or the specific collection type(dict/tuple) would
resolve this error.
--
Sayantan Bhattacharya
[Sent from pine@dev-machine]
On Sun, 19 Aug 2018, ankur gupta wrote:
> ---------- Forwarded message ---------
> From: ankur gupta <ankurim...@gmail.com>
> Date: Sun, Aug 19, 2018 at 3:07 PM
> Subject: Please help with this code
> To: <bangpypers@python.org>
>
>
> Dear Sir
> I am new to python programing, I am getting error while executing this
> code. I want to generate multiple instance using while loop to store
data
> following is the code
>
> class STUDENT:
> no_of_students=0
> def __init__(self,roll,name,present,absent):
> self.roll=roll
> self.name=name
> self.present=present
> self.absent=absent
> STUDENT.no_of_students+=1
>
> n='Y'
> i=0
> while n=='Y' or n=='y':
> roll=input("ENTER NAME: ")
> name=input("ENTER ROLL NO:")
> present=input("ENTER NO. OF DAYS PRESENT:")
> absent=input("ENTER NO. OF DAYS ABSENT:")
> std[i] = STUDENT(roll,name,present,absent)
> n=input("ENTER MORE RECORDS (Y/y)?...")
> i+1
>
>
> GETTING THIS ERROR
>
> ankur@ankur-Lenovo-G50-80:~/PycharmProjects$ cd
/home/ankur/PycharmProjects
> ; env "PYTHONIOENCODING=UTF-8" "PYTHO
> NUNBUFFERED=1" /home/ankur/anaconda3/bin/python
> /home/ankur/.vscode/extensions/ms-python.python-2018.4.0/pythonFi
> les/PythonTools/visualstudio_py_launcher.py /home/ankur/PycharmProjects
> 42323 34806ad9-833a-4524-8cd6-18ca4aa74f1
> 4 RedirectOutput,RedirectOutput "/home/ankur/PycharmProjects/STUDENTS
> ATTENDANCE.PY"
> ENTER NAME: ANKUR
> ENTER ROLL NO:1
> ENTER NO. OF DAYS PRESENT:12
> ENTER NO. OF DAYS ABSENT:8
> Traceback (most recent call last):
> File "/home/ankur/PycharmProjects/STUDENTS ATTENDANCE.PY", line 17, in
> <module>
> std[i] = STUDENT(roll,name,present,absent)
> NameError: name 'std' is not defined
>
>
> THANKS IN ADVANCE
> ANKUR GUPTA
> _______________________________________________
> BangPypers mailing list
> BangPypers@python.org
> https://mail.python.org/mailman/listinfo/bangpypers
>
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