diff --git a/b_asic/port.py b/b_asic/port.py
index 33443860dca0f4219dad7854fe06e4c41d5a1af9..9b60a6fc4d308132c702e79a0e3cf99a2e630f63 100644
--- a/b_asic/port.py
+++ b/b_asic/port.py
@@ -68,8 +68,9 @@ class Port(ABC):
     @abstractmethod
     def add_signal(self, signal: Signal) -> None:
         """
-        Connect this port to the entered signal. If the entered signal isn't connected to
-        this port then connect the entered signal to the port as well.
+        Connect this port to the entered signal. If the entered signal is not
+        connected to this port then connect the entered signal to the port as
+        well.
         """
         raise NotImplementedError
 
diff --git a/b_asic/schedule.py b/b_asic/schedule.py
index f7b3f498c566c3df50c351a4b47300938dd12384..17b22d9690973e36423837b19ae76737335d65d5 100644
--- a/b_asic/schedule.py
+++ b/b_asic/schedule.py
@@ -369,7 +369,7 @@ class Schedule:
             for outport in outports:
                 op = outport.operation
                 if op.graph_id not in self._start_times:
-                    # Schedule the operation if it doesn't have a start time yet.
+                    # Schedule the operation if it does not have a start time yet.
                     op_start_time = 0
                     for inport in op.inputs:
                         assert (
diff --git a/b_asic/scheduler_gui/compile.py b/b_asic/scheduler_gui/compile.py
index 473526f01243ba30403d7719f3f0b1f0cd74077b..d8cfe326ddb349e152e51f3c41bee56318a20830 100644
--- a/b_asic/scheduler_gui/compile.py
+++ b/b_asic/scheduler_gui/compile.py
@@ -70,7 +70,10 @@ def compile_rc(*filenames: str) -> None:
         if rcc is None:
             rcc = shutil.which("pyrcc5")
             arguments = f"-o {outfile} {filename}"
-        assert rcc, "PySide2 compiler failed, can't find rcc"
+        assert rcc, (
+            "Qt Resource compiler failed, cannot find pyside2-rcc, rcc, or"
+            " pyrcc5"
+        )
 
         os_ = sys.platform
         if os_.startswith("linux"):  # Linux
@@ -141,7 +144,10 @@ def compile_ui(*filenames: str) -> None:
             if uic_ is None:
                 uic_ = shutil.which("pyuic5")
                 arguments = f"-o {outfile} {filename}"
-            assert uic_, "PySide2 compiler failed, can't find uic"
+            assert uic_, (
+                "Qt User Interface Compiler failed, cannot find pyside2-uic,"
+                " uic, or pyuic5"
+            )
 
             os_ = sys.platform
             if os_.startswith("linux"):  # Linux
diff --git a/b_asic/scheduler_gui/logger.py b/b_asic/scheduler_gui/logger.py
index ee5ffa49821b3bc59dadab31f7f75bd3b453d30a..c85792a4d4dea633938febda5155b789722ac355 100644
--- a/b_asic/scheduler_gui/logger.py
+++ b/b_asic/scheduler_gui/logger.py
@@ -39,7 +39,7 @@ Usage:
      - 40
 
 The last `exception(str)` is used to capture exceptions output, that normally
-won't be captured.
+will not be captured.
 See https://docs.python.org/3/howto/logging.html for more information.
 
 Log Uncaught Exceptions:
@@ -50,12 +50,9 @@ import logging
 import logging.handlers
 import os
 import sys
-import traceback
 from logging import Logger
 from types import TracebackType
-from typing import Optional, Type, Union
-
-from qtpy import QtCore, QtWidgets
+from typing import Type, Union
 
 
 def getLogger(
diff --git a/b_asic/scheduler_gui/main_window.py b/b_asic/scheduler_gui/main_window.py
index dc5b086b6716e05249e90d8e677276e368ed70c0..936d4ebcbc8630e55192649f1b4371372f0bd2c5 100644
--- a/b_asic/scheduler_gui/main_window.py
+++ b/b_asic/scheduler_gui/main_window.py
@@ -404,7 +404,7 @@ class MainWindow(QMainWindow, Ui_MainWindow):
             buttons: list[QAbstractButton] = box.buttons()
             buttons[0].setText(self.tr("&Exit"))
             buttons[1].setText(self.tr("&Cancel"))
-            checkbox = QCheckBox(self.tr("Don't ask again"))
+            checkbox = QCheckBox(self.tr("Do not ask again"))
             box.setCheckBox(checkbox)
             ret = box.exec_()
 
diff --git a/b_asic/signal_flow_graph.py b/b_asic/signal_flow_graph.py
index dc867e093355a35cc9ab10208e73f2204792b336..aae96f37f38b61697f27210caea93c3e135c3af0 100644
--- a/b_asic/signal_flow_graph.py
+++ b/b_asic/signal_flow_graph.py
@@ -971,7 +971,7 @@ class SFG(AbstractOperation):
             for outport in curr_iter_ports:
                 for signal in outport.signals:
                     new_inport = signal.destination
-                    # Don't traverse over delays.
+                    # Do not traverse over delays.
                     if new_inport is not None and not isinstance(
                         new_inport.operation, Delay
                     ):