The main problem is that you cannot print all elements of a dictionary in Python.
d = {'a': 1, 'b': 2, 'c': 3}
for key in d:
if key != 'b':
print(key, ":", d[key])
This code is iterating through the keys in the dictionary.
For each key, if the key is not equal to ‘b’,
then it will print out the key and its corresponding value.
Exceptions
There are a few exceptions in Python that you should be aware of. The first is the None value. This is a special value that represents an empty list or dictionary. For example, the following code prints “None” :
print ( “None” )
The second exception is the IndexError exception. This exception is raised when you try to access an element of an array that doesn’t exist. For example, the following code will raise an IndexError exception:
arr[ 0 ] = “foo”
The third exception is the TypeError exception. This exception is raised when you try to use a function or variable that doesn’t have the correct type. For example, the following code will raise a TypeError exception:
Print elements
In Python, print() is a function that prints text to the console. It takes one or more arguments, which are the text to be printed and the location where it should be printed.
print(“Hello, world!”)
