Lists

tr_sehirler = ['adana', 'ankara', 'istanbul']
 
print(tr_sehirler[0])
 
tr_sehirler[1] = 'balikesir'

When you create a list like this, the order is preserved.

Nested Lists

list1 = ['a', 'b', 'c']
list2 = ['z', 'y', 'x']
 
nested_list = [list1, list2]

When you print nested_list[0], it will print all list1 When you print nested_list[0][1], it will print ‘b’

Functions

Docs

List Manipulation

append()

To add an item to the end of the list, you use this function.

tr_sehirler.append('denizli')

insert()

Insert an item to a specified location

tr_sehirler.insert(0,'zonguldak') # insert as the first of the list
tr_sehirler.insert(1,'adiyaman') # insert as the second of the list

extend()

Add another list to the existing list

tr_sehirler.extend(['bursa', 'burdur', 'tokat'])

sum()

Sum of all the numbers in a list

random.choice(list)

Choose a random item from a given list

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list()

Turns a string into a list by individual characters

word = pencil
my_list = list(word)
# ['p','e',....]

join()

It is used to join stuff. It can also be used to convert strings into text

xs = ['1', '2', '3']
s = ''.join(xs)

count()

Count how many times that item appears in the a list

points = [1,1,2,2,3,3,3,3]
x = points.count(3)
# x is 4

index()

Give the position of an item in a list

Circular transclusion detected: Python/Basics/Built-in-Functions

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