Hello,

I have just created new RHEL VM in VMWare Player. I can not run "yum update -y" because it is not currently registered with Red Hat Website. When I try to register with "subscription-manager register --username <username> --password <password> ...." I get the following message:

'NoneType' object is not subscriptable.

I get this message with both RHEL 8 as well as RHEL7 VMs.

What do I need to do ?

Any thoughts ?

Call Red Hat?

I do not have Red Hat subscription and doing of my own VM. CanI still call Red Hat ?

No, If you do not have a paid subscription you can not get updates. Use CentOS instead.

I thought you were getting the error while trying to start a RH subscription. I misunderstood.

If you're going to use Red Hat, you need to have a subscription. Else, as michaelk said, use CentOS.

A subscriptable object is any object that implements the __getitem__ special method (think lists, dictionaries). It is an object that records the operations done to it and it can store them as a "script" which can be replayed. You are trying to subscript an object which you think is a list or dict, but actually is None. NoneType is the type of the None object which represents a lack of value, for example, a function that does not explicitly return a value will return None. 'NoneType' object is not subscriptable is the one thrown by python when you use the square bracket notation object[key] where an object doesn't define the __getitem__ method . You might have noticed that the method sort() that only modify the list have no return value printed – they return the default None. This is a design principle for all mutable data structures in Python.