Page 1 - demo_vp

LIST AND TUPLE METHODS

L=[13,45,67,78,89,123]

Sr method Example with list Working Is same method
no applicable on
tuple
1 index() L.index(67) Returns index of first matched Yes
element
2 append() L.append(565) Add a a single element at end no
3 extend() L.extend(L1) Multiple elements are added given in no
form of list
4 insert() L.insert(<pos>,element) Inserts element at given position no
5 pop() L.pop(<index>) If no index is specified ,last element is no
removed
6 remove() L.remove(<value>) Removes the first occurrence of no
element
7 clear() L.clear() Removes all elements from list and no
returns empty list
8 count() L.count(<element>) Counts occurrence of element Yes
9 reverse() L.reverse() In place reversal of list No
10 Sort() L.sort() In place sorting No
11 len() L.len() Finds length o fa list Yes
12 max() max(<List>) Finds element of maximum value Yes
13 min() min(<list>) Finds element of minimum value Yes

LESSON 3 :FUNCTIONS IN PYTHON

Need of functions: For large programs it is very difficult and cumbersomefor a

programmer to keep track of data and control statements . Therefore to divide large programs
into different smaller modules ,we define functions. These functions work on given small data
,process it ,and return result.

It is systematic way of problem solving . divide the problem into smaller parts , write a function
for it, and then integrate all the functions .

Functions can be categorized into following 3 types

1