Jupyter Kernel Conformance

Kernel responds to heartbeat ping within timeout

Kernel sends iopub_welcome on XPUB subscription (JEP 65)

Kernel returns valid kernel_info_reply with status ok

kernel_info_reply contains non-empty language_info.name

kernel_info_reply contains non-empty protocol_version

Execute code that prints produces stream message on stdout

Execute code that prints to stderr produces stream message

Execute valid code returns execute_reply with status ok

Kernel broadcasts busy then idle status on iopub during execution

Kernel broadcasts execute_input on iopub when executing

Kernel responds to shutdown request and terminates cleanly

Kernel can produce display_data messages for rich output

Kernel can update existing displays via update_display_data

Expression evaluation produces execute_result on iopub

Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)

Kernel can request input from frontend via stdin channel

Kernel supports comm open/msg/close lifecycle

Kernel responds to interrupt request on control channel

Execution count increments with each execute_request

All response messages contain correct parent_header