Create a python file and perform the following operations on a list:

$-$ Create a list containing the elements $2,5,6,3,7,9,8$

$-$ Append $10$ to this list.

$-$ Remove $7$ from the list.

$-$ Insert $4$ at the $3$rd index.

$-$ Sort the list.

$-$ Print the list.

You can use built$-$in methods for these operations