' Hello Python! ' * 6
' Hello Python! Hello Python! Hello Python! Hello Python! Hello Python! Hello Python! '
import os os.getcwd()
%pwd
'/home/cobalt/iPython'
import sys
print(sys.platform)
linux
import math
math.pi
3.141592653589793
import random
random.choice([1,2,3,4,5,6])
3
D = {'food': 'Spam', 'quantity': 4, 'color': 'pink'}
D['food']
'Spam'
D = {}
D['name'] = 'Bob' # Create keys by assignment
D['job'] = 'dev'
D['age'] = 40
D
{'age': 40, 'job': 'dev', 'name': 'Bob'}
T = (1, 2, 3, 4) # A 4-item tuple
len(T)
4
T + (5, 6) # Concatenation
(1, 2, 3, 4, 5, 6)
T[3]
4
a = 12
a ** 2
144
print("The result is {0:d}.".format(_))
The result is 144.