From Associative Array to Dictionary

Associative arrays in PERL are called dictionaries in Python.

Here is a PERL program using an associative array.

%A = (“john”, 39, “mark”, 170);

print $A{“john”},”\n”;
print %A,”\n”;

Its equivalent Python code is shown below.

A = {‘john’: 12, ‘mark’: 170}

print A['john']
print A

Iterating over keys and values

Keyword ‘in’

The keyword ‘in’ can be used to iterate over the keys or values.

age={}
age['john']=12
age['paul']=77

print 12 in age
print ‘john’ in age

Keyword - del

The keyword del can be used to delete a member of a dictionary.

age={}
age['john']=12
age['paul']=77

print age
del age['john']
print age