Python modules

Modules in python

#use import statement to import modules
import random
r = random.randint(1,10)
#use from-import statements to import functions
from random import randint
r = randint(1,10)
#use from module import * statement to import all functions
from random import *
r = randint(1,10)

Python modules

A programmer usually prefer the predefined functions and variables for document,
Modules are collection of several diffrent definitions(functions and variables)
and statements.Or to put simply The files with ".py" appended at the name of the
source code,the user can import that module(files) or specific function fromthat
module into the file.
programmer use the module,complete project in less time and more efficient way.
programmer generally import either the module which user saved with ".py" or can
use some standard module like random,queue,array,math,profile,statistics etc....
just type "help('modules')" and you can see all standard modules in interactive
mode.
-------------------------------------------------------------------------------
 Eg--> # here entire math universe will come into the program 
>>> import math
>>> math.cos(60)# math.cos()
-0.9524129804151563
>>> math.ceil(6.12)#math.ceil()
7
>>> math.log2(4)#math.log2()
2.0
-------------------------------------------------------------------------------
#but if you want specific built in function then use "from".
 Eg--> # only perticular function will come from the math module.
>>> from math import sqrt,sin
>>> sqrt(9)#math module will be undefine since only function sqrt,sin defined
3.0
>>> sin(60)# sin is imported from math and "math." is not required
-0.3048106211022167
>>> cos(60)# cos is not part of the built in function that imported from math.
'''Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    cos(60)
NameError: name 'cos' is not defined'''
>>> math.cos(60)# this gives error because math has not been imported
'''Traceback (most recent call last):
  File "<pyshell#4>", line 1, in <module>
    math.cos(60)
NameError: name 'math' is not defined'''
-------------------------------------------------------------------------------

Modules in python

import  pandas as pd:

Similar codes

1 vote265 views1 answer
Install flake8 python
Python
0 vote298 views0 answer
Python
1 vote347 views1 answer
Task timed out after 3.00 seconds aws lambda python
Python
0 vote323 views2 answers
3.81/(1000*1000*100)
Python
1 vote312 views1 answer
How to open an external file in python
Python
2 votes310 views2 answers
How to check if user is using main file or importing the file and using in python
Python
0 vote331 views1 answer
How to discover which index labels are in other
Python
4 votes344 views2 answers
__call__ python
Python
0 vote334 views1 answer
Python get filename from path glob without extension
Python
0 vote350 views1 answer
Sapi5 python
Python

Python modules

Modules in python

Python modules

Modules in python

Install flake8 python

Task timed out after 3.00 seconds aws lambda python

3.81/(10001000100)

How to open an external file in python

How to check if user is using main file or importing the file and using in python

How to discover which index labels are in other

call python

Python get filename from path glob without extension

Sapi5 python