Runtime Config

The zwitch interface controls the kind and level of information messages that
are displayed to stderr. Options are controlled by, e.g.
zwitch.zefhub_communication_output(True) and are read by
zwitch.zefhub_communication_output(). The options are:

zwitch.<...>	Default	Purpose
short_output	True	cause the info output to be more concise
zefhub_communication_output	True	show messages about connections with ZefHub.
graph_event_output	True	show messages about graph updates
extra_quiet	False	when True will suppress other messages that do not fit into the categories above

Controlling behavior

Some more low-level options are also available that affect behavior rather than output:

zwitch.<...>	Default	Purpose
allow_dynamic_entity_type_definitions	False
allow_dynamic_relation_type_definitions	False
allow_dynamic_enum_type_definitions	False	these three options override whether ET, RT, or EN creation is allowed. Primarily used for service jobs.
default_rollback_empty_tx	True	If True, any transaction which is empty is undone, leaving the graph in exactly the same state before opening the transaction.
default_wait_for_tx_finish	True	If True, the closing of a transaction is blocking until all of the data is processed. When a function that closes a transaction returns, the read_head and write_head will be in sync.