Question

Is there a way to copy AMI from one AWS account to another AWS account using boto

Answer 1

Copying isn’t possible. You may however  share the AMI from one account to another. Try this:

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/sharingamis-explicit.html

http://boto3.readthedocs.io/en/latest/reference/services/ec2.html#EC2.Client.modify_image_attribute

Answer 2

You could share the AMI from one account to another. Try this:

Sharing an AMI with Specific AWS Accounts

Does that do what you want it to do?

Here it is in boto3.

After sharing the image, perhaps then you can copy it with boto3.