Bases: _DeferredImportIndicatorBase
Placeholder indicating if an import was successful.
This object serves as a placeholder for the Boolean indicator if a
deferred module import was successful. Casting this instance to
bool will cause the import to be attempted. The actual import logic
is here and not in the DeferredImportModule to reduce the number of
attributes on the DeferredImportModule.
DeferredImportIndicator supports limited logical expressions
using the & (and) and | (or) binary operators. Creating
these expressions does not trigger the import of the corresponding
DeferredImportModule instances, although casting the
resulting expression to bool() will trigger any relevant
imports.
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__init__(name, error_message, catch_exceptions, minimum_version, original_globals, callback, importer, deferred_submodules)[source]
Methods
__init__(name, error_message, ...)
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replace_self_in_globals(_globals)
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resolve()
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Member Documentation