disable palette, min python version 3.9

Author: learnbyexample

AwkExercises/awk_exercises.py

@@ -13,6 +13,7 @@
 SCRIPT_DIR = Path(__file__).parent.resolve()
 
 class AwkExercisesApp(App):
+    ENABLE_COMMAND_PALETTE = False
     CSS_PATH = SCRIPT_DIR.joinpath('awk_exercises.css')
     BINDINGS = [
         Binding('ctrl+s', 'show_solution', 'Solution', show=True),
@@ -172,9 +173,7 @@ def set_cmd(self, cmd):
         self.process_user_cmd()
 
     def trim(self, text):
-        if text.endswith('\n'):
-            text = text[:-1]
-        return text
+        return text.removesuffix('\n')
 
     def save_progress(self):
         cmd = self.i_cmd.value

AwkTutorial/awk_tutorial.py

@@ -11,6 +11,7 @@
 SCRIPT_DIR = Path(__file__).parent.resolve()
 
 class AwkTutorialApp(App):
+    ENABLE_COMMAND_PALETTE = False
     CSS_PATH = SCRIPT_DIR.joinpath('awk_tutorial.css')
     BINDINGS = [
         Binding('ctrl+p', 'previous', 'Previous', show=True),
@@ -115,9 +116,7 @@ def set_cmd(self, cmd):
         self.process_user_cmd()
 
     def trim(self, text):
-        if text.endswith('\n'):
-            text = text[:-1]
-        return text
+        return text.removesuffix('\n')
 
     def l_cmd_output_style(self, color, title, subtitle):
         self.l_cmd_output.styles.color = color

GrepExercises/grep_exercises.py

@@ -13,6 +13,7 @@
 SCRIPT_DIR = Path(__file__).parent.resolve()
 
 class GrepExercisesApp(App):
+    ENABLE_COMMAND_PALETTE = False
     CSS_PATH = SCRIPT_DIR.joinpath('grep_exercises.css')
     BINDINGS = [
         Binding('ctrl+s', 'show_solution', 'Solution', show=True),
@@ -186,9 +187,7 @@ def set_cmd(self, cmd):
         self.process_user_cmd()
 
     def trim(self, text):
-        if text.endswith('\n'):
-            text = text[:-1]
-        return text
+        return text.removesuffix('\n')
 
     def save_progress(self):
         cmd = self.i_cmd.value

SedExercises/sed_exercises.py

@@ -13,6 +13,7 @@
 SCRIPT_DIR = Path(__file__).parent.resolve()
 
 class SedExercisesApp(App):
+    ENABLE_COMMAND_PALETTE = False
     CSS_PATH = SCRIPT_DIR.joinpath('sed_exercises.css')
     BINDINGS = [
         Binding('ctrl+s', 'show_solution', 'Solution', show=True),
@@ -172,9 +173,7 @@ def set_cmd(self, cmd):
         self.process_user_cmd()
 
     def trim(self, text):
-        if text.endswith('\n'):
-            text = text[:-1]
-        return text
+        return text.removesuffix('\n')
 
     def save_progress(self):
         cmd = self.i_cmd.value