diff --git a/meshroom/core/desc/node.py b/meshroom/core/desc/node.py
index a70053f8..b0b37b80 100644
--- a/meshroom/core/desc/node.py
+++ b/meshroom/core/desc/node.py
@@ -116,7 +116,7 @@ class Node(object):
         raise NotImplementedError('No stopProcess implementation on node: {}'.format(chunk.node.name))
 
     def processChunk(self, chunk):
-        raise NotImplementedError('No processChunk implementation on node: "{}"'.format(chunk.node.name))
+        raise NotImplementedError(f'No processChunk implementation on node: "{chunk.node.name}"')
 
 
 class InputNode(Node):
diff --git a/meshroom/core/node.py b/meshroom/core/node.py
index b5c49cc5..2d92ea3f 100644
--- a/meshroom/core/node.py
+++ b/meshroom/core/node.py
@@ -23,11 +23,11 @@ from meshroom.core.attribute import attributeFactory, ListAttribute, GroupAttrib
 from meshroom.core.exception import NodeUpgradeError, UnknownNodeTypeError
 
 
-def getWritingFilepath(filepath):
+def getWritingFilepath(filepath: str) -> str:
     return filepath + '.writing.' + str(uuid.uuid4())
 
 
-def renameWritingToFinalPath(writingFilepath, filepath):
+def renameWritingToFinalPath(writingFilepath: str, filepath: str) -> str:
     if platform.system() == 'Windows':
         # On Windows, attempting to remove a file that is in use causes an exception to be raised.
         # So we may need multiple trials, if someone is reading it at the same time.
@@ -1061,7 +1061,7 @@ class BaseNode(BaseObject):
         s = self.globalStatus
         for chunk in self._chunks:
             chunk.updateStatusFromCache()
-        # logging.warning("updateStatusFromCache: {}, status: {} => {}".format(self.name, s, self.globalStatus))
+        # logging.warning(f"updateStatusFromCache: {self.name}, status: {s} => {self.globalStatus}")
         self.updateOutputAttr()
 
     def submit(self, forceCompute=False):
diff --git a/meshroom/ui/reconstruction.py b/meshroom/ui/reconstruction.py
index c96edfb1..93b7bb73 100755
--- a/meshroom/ui/reconstruction.py
+++ b/meshroom/ui/reconstruction.py
@@ -12,10 +12,14 @@ from PySide6.QtGui import QMatrix4x4, QMatrix3x3, QQuaternion, QVector3D, QVecto
 
 import meshroom.core
 import meshroom.common
+
 from meshroom import multiview
 from meshroom.common.qt import QObjectListModel
 from meshroom.core import Version
 from meshroom.core.node import Node, CompatibilityNode, Status, Position, CompatibilityIssue
+from meshroom.core.taskManager import TaskManager
+
+from meshroom.ui import commands
 from meshroom.ui.graph import UIGraph
 from meshroom.ui.utils import makeProperty
 from meshroom.ui.components.filepath import FilepathHelper
@@ -450,7 +454,7 @@ class Reconstruction(UIGraph):
         "matchProvider": ["FeatureMatching", "StructureFromMotion"]
     }
 
-    def __init__(self, undoStack, taskManager, defaultPipeline="", parent=None):
+    def __init__(self, undoStack: commands.UndoStack, taskManager: TaskManager, defaultPipeline: str="", parent: QObject=None):
         super(Reconstruction, self).__init__(undoStack, taskManager, parent)
 
         # initialize member variables for key steps of the 3D reconstruction pipeline