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Fixed wrong typehinting

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This commit is contained in:
Jaime van Kessel 2017-05-02 17:00:26 +02:00
parent 3dae6b4bbf
commit 58ab9dcd09
1 changed files with 3 additions and 1 deletions
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4
cura/Settings/CuraStackBuilder.py
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@ -10,6 +10,8 @@ from UM.Settings.ContainerRegistry import ContainerRegistry
from .GlobalStack import GlobalStack
from .ExtruderStack import ExtruderStack
from .CuraContainerStack import CuraContainerStack
from typing import Optional
## Contains helper functions to create new machines.
class CuraStackBuilder:
@ -20,7 +22,7 @@ class CuraStackBuilder:
#
# \return The new global stack or None if an error occurred.
@classmethod
def createMachine(cls, name: str, definition_id: str) -> GlobalStack:
def createMachine(cls, name: str, definition_id: str) -> Optional[GlobalStack]:
registry = ContainerRegistry.getInstance()
definitions = registry.findDefinitionContainers(id = definition_id)
if not definitions: