Watch Me Code 1: Dictionary Basics

In [2]:

    

student = {} # empty dictionary


    

In [3]:

    

# set some values
student['Name'] = 'Michael'
student['GPA'] = 3.4
student['Ischool'] = True

print(student)


    

    




{'GPA': 3.4, 'Ischool': True, 'Name': 'Michael'}

In [4]:

    

# mutable
student['GPA'] = 4.0
print(student['Name'], student['GPA'])


    

    




Michael 4.0

In [1]:

    

a = {"a": "b", "x": "y", "2": 2}

print(a[2])


    

    




---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-1-192210c11917> in <module>()
      3 a = {"a": "b", "x": "y", "2": 2}
      4 
----> 5 print(a[2])
      6 
      7 

KeyError: 2

In [ ]:

    




    

In [ ]: