test_lazy_exports

Importing this package must stay cheap, and its exports must stay honest.

Every model in this stack is a ccflow model, and importing ccflow imports csp and pandas: about 0.9 s. A package that imports its model modules at import time puts all of that in front of anything that merely imports it – including hydra’s searchpath plugin, which imports the config package to discover what is installed and reads none of these names.

Attributes

INIT

Functions

_type_checking_imports() → dict[str, tuple[str, ...]]	What the TYPE_CHECKING block declares, read from the source.
test_the_declaration_and_the_type_checking_block_agree() → None	The two exist for different readers -- the resolver and a type
test_every_exported_name_resolves() → None	A name declared here and missing from its submodule would raise on
test_an_unknown_name_still_raises_attribute_error() → None
test_importing_the_package_stays_cheap() → None	Run in a fresh interpreter, because this one has already imported

Module Contents

test_lazy_exports.INIT

test_lazy_exports._type_checking_imports() → dict[str, tuple[str, ...]]

What the TYPE_CHECKING block declares, read from the source.

test_lazy_exports.test_the_declaration_and_the_type_checking_block_agree() → None

The two exist for different readers – the resolver and a type checker – and a name in one and not the other is a name that imports for one of them and fails for the other.

test_lazy_exports.test_every_exported_name_resolves() → None

A name declared here and missing from its submodule would raise on first access, which is a broken import nobody sees until a caller reaches for it. Resolve all of them now.

test_lazy_exports.test_an_unknown_name_still_raises_attribute_error() → None

test_lazy_exports.test_importing_the_package_stays_cheap() → None

Run in a fresh interpreter, because this one has already imported everything.