Sqlite3InMemoryConnection

class PlasmaCalcs.tools.sql_tools.Sqlite3InMemoryConnection(*, con=None, _owner_close_con_on_delete=True)

Bases: object

class which mimics a database connection to an in-memory database.

Behaves like sqlite3.connect(‘:memory:’) but will not close() upon __exit__.

Allows consistent interface with “with” blocks without losing the in-memory connection,

as long as the InMemoryConnection object itself is kept alive.

con: None or sqlite3.Connection

connection to in-memory database.

If None, creates new sqlite3.Connection to ‘:memory:’.

_owner_close_con_on_delete: bool

whether self should try to close self.con when self is about to be deleted.

Only applies if self created con, i.e. con not None during init.

Methods

__del__()	delete self; if self owns con and _owner_close_con_on_delete, close con.
__enter__()	enter "with" block; returns self (which behaves like sqlite3.Connection)
__exit__(exc_type, exc_value, traceback)	exit "with" block; does NOT close connection.
__getattr__(name)	pass through any other attribute access to self.con

__del__()

delete self; if self owns con and _owner_close_con_on_delete, close con.

__enter__()

enter “with” block; returns self (which behaves like sqlite3.Connection)

__exit__(exc_type, exc_value, traceback)

exit “with” block; does NOT close connection.

__getattr__(name)

pass through any other attribute access to self.con