Perl To Python Migration

CLASSES

Perl provides a very simple method for creating classes and allowing you to create objects off of those classes. We can summarize Perl's approach to creating classes in three points:

• An object is simply a reference.

• A class is simply a package.

• A method is simply a subroutine.

For example, to create a new class and the constructor method required to create a new object, in this case an object for tracking banking accounts, is as simple as:

package Account;
sub new
{
    my ($package, $name, $balance) = @_;
    my $self = {'Name' => $name,
                'Balance' => $balance};
    bless $self, $package;
    return $self;
}

sub deposit
{
    my ($self, $value) = @_;
    $self->{'Balance'} += $value;
}

sub withdraw
{
    my ($self, $value) = @_;
    $self->{'Balance'} -= $value;
}