1. 1. 1. Problem

Currently, fedora-easy-karma uses a PkgHelper class that modifies the global behavior of the `dnf.package.Package` class by dynamically injecting a `_getitem_` method:

```
dnf.package.Package._getitem_ = lambda self, key: getattr(self, key)
```

This practice is dangerous and can lead to unexpected side effects elsewhere in the application or any libraries using DNF.

1. 1. 1. Possible solution

Refactor PkgHelper into a new design that wraps the `dnf.package.Package` object in a safe local wrapper class.

The wrapper should:

• provide the same convenience (pkg["name"] and pkg.name both work),

• avoid modifying any DNF internal objects globally.

`PackageWrapper` will be a small wrapper class that proxies both attribute access and index access to the underlying dnf.package.Package instance.

`Packages`: the `PkgHelper` will be renamed so that the name tells more about what we can expext from this class. It will stay the same, but will use the `PackageWrapper` to enable the previous functionality.