python basic.py

#Write a Python program to get the Python version you are using.  
import sys
print("Python version")
print (sys.version)
print("Version info.")
print (sys.version_info)


#Write a Python program to display the current date and time.
Sample Output :
Current date and time :
2014-07-05 14:34:14

import datetime
now = datetime.datetime.now()
print ("Current date and time : ")
print (now.strftime("%Y-%m-%d %H:%M:%S"))

#Write a Python program which accepts the radius of a circle from the user and compute the area. 
 Sample Output :
r = 1.1
Area = 3.8013271108436504
from math import pi
r = float(input ("Input the radius of the circle : "))
print ("The area of the circle with radius " + str(r) + " is: " + str(pi * r**2))

#Write a Python program which accepts the user's first and last name and print them in reverse order with a space between them 
fname = input("Input your First Name : ")
lname = input("Input your Last Name : ")
print ("Hello  " + lname + " " + fname)

#Write a Python program which accepts a sequence of comma-separated numbers from user and generate a list and a tuple with those numbers
Sample data : 3, 5, 7, 23
Output :
List : ['3', ' 5', ' 7', ' 23']
Tuple : ('3', ' 5', ' 7', ' 23')

values = input("Input some comma seprated numbers : ")
list = values.split(",")
tuple = tuple(list)
print('List : ',list)
print('Tuple : ',tuple)


Write a Python program to accept a filename from the user and print the extension of that. 
Sample filename : abc.java
Output : java

filename = input("Input the Filename: ")
f_extns = filename.split(".")
print ("The extension of the file is : " + repr(f_extns[-1]))

Write a Python program that accepts an integer (n) and computes the value of n+nn+nnn. 
Sample value of n is 5
Expected Result : 615
a = int(input("Input an integer : "))
n1 = int( "%s" % a )
n2 = int( "%s%s" % (a,a) )
n3 = int( "%s%s%s" % (a,a,a) )
print (n1+n2+n3)


10. Write a Python program to convert seconds to day, hour, minutes and seconds.  
time = float(input("Input time in seconds: "))
day = time // (24 * 3600)
time = time % (24 * 3600)
hour = time // 3600
time %= 3600
minutes = time // 60
time %= 60
seconds = time
print("d:h:m:s-> %d days :%d hours:%d minutes:%d seconds" % (day, hour, minutes, seconds))