Empty array python

Python declare array of size n

>>> n = 5                     #length of list
>>> list = [None] * n         #populate list, length n with n entries "None"
>>> print(list)
[None, None, None, None, None]

>>> list.append(1)            #append 1 to right side of list
>>> list = list[-n:]          #redefine list as the last n elements of list
>>> print(list)
[None, None, None, None, 1]

>>> list.append(1)            #append 1 to right side of list
>>> list = list[-n:]          #redefine list as the last n elements of list
>>> print(list)
[None, None, None, 1, 1]

>>> list.append(1)            #append 1 to right side of list
>>> list = list[-n:]          #redefine list as the last n elements of list
>>> print(list)
[None, None, 1, 1, 1]

Source: stackoverflow.com

Empty array python

import numpy
my_array = numpy.zeros(shape=(row,column))

Similar codes

0 vote94 views1 answer
Text color python tkinter
Python
0 vote103 views1 answer
Python write list to excel file
Python
0 vote98 views1 answer
Extract all namespace from xml file python
Python
0 vote100 views1 answer
Find rows in dataframe from another dataframe python
Python
0 vote94 views1 answer
Relative path django
Python
0 vote108 views1 answer
Rc.local raspberry pi
Python
2 votes172 views3 answers
Django queryset to list
Python Django
2 votes99 views1 answer
Pygame rect collisions
Python
4 votes104 views1 answer
How to loop the length of an array pytoh
Python
0 vote96 views1 answer
PANDAS BIGGER PLOTS
Python