Fixed how shortcuts are set in examples

Author: tleonhardt

examples/arg_print.py

@@ -19,12 +19,9 @@ class ArgumentAndOptionPrinter(cmd2.Cmd):
 
     def __init__(self):
         # Create command shortcuts which are typically 1 character abbreviations which can be used in place of a command
-        self.shortcuts.update({'$': 'aprint', '%': 'oprint'})
-
-        # Make sure to call this super class __init__ *after* setting and/or updating shortcuts
-        super().__init__()
-        # NOTE: It is critical that the super class __init__ method be called AFTER updating certain parameters which
-        # are not settable at runtime.  This includes the shortcuts, etc.
+        shortcuts = dict(self.DEFAULT_SHORTCUTS)
+        shortcuts.update({'$': 'aprint', '%': 'oprint'})
+        super().__init__(shortcuts=shortcuts)
 
     def do_aprint(self, statement):
         """Print the argument string this basic command is called with."""

examples/async_printing.py

@@ -32,7 +32,6 @@ class AlerterApp(cmd2.Cmd):
 
     def __init__(self, *args, **kwargs) -> None:
         """ Initializer """
-
         super().__init__(*args, **kwargs)
 
         self.prompt = "(APR)> "

examples/cmd_as_argument.py

@@ -29,15 +29,13 @@ class CmdLineApp(cmd2.Cmd):
     MUMBLE_LAST = ['right?']
 
     def __init__(self):
-        self.allow_cli_args = False
-        self.maxrepeats = 3
-
-        # Add stuff to shortcuts before calling base class initializer
-        self.shortcuts.update({'&': 'speak'})
-
+        shortcuts = dict(self.DEFAULT_SHORTCUTS)
+        shortcuts.update({'&': 'speak'})
         # Set use_ipython to True to enable the "ipy" command which embeds and interactive IPython shell
-        super().__init__(use_ipython=False, multiline_commands=['orate'])
+        super().__init__(use_ipython=False, multiline_commands=['orate'], shortcuts=shortcuts)
 
+        self.allow_cli_args = False
+        self.maxrepeats = 3
         # Make maxrepeats settable at runtime
         self.settable['maxrepeats'] = 'max repetitions for speak command'
 

examples/colors.py

@@ -63,14 +63,12 @@ class CmdLineApp(cmd2.Cmd):
     MUMBLE_LAST = ['right?']
 
     def __init__(self):
-        self.maxrepeats = 3
-
-        # Add stuff to shortcuts before calling base class initializer
-        self.shortcuts.update({'&': 'speak'})
-
+        shortcuts = dict(self.DEFAULT_SHORTCUTS)
+        shortcuts.update({'&': 'speak'})
         # Set use_ipython to True to enable the "ipy" command which embeds and interactive IPython shell
-        super().__init__(use_ipython=True, multiline_commands=['orate'])
+        super().__init__(use_ipython=True, multiline_commands=['orate'], shortcuts=shortcuts)
 
+        self.maxrepeats = 3
         # Make maxrepeats settable at runtime
         self.settable['maxrepeats'] = 'max repetitions for speak command'
 

examples/decorator_example.py

@@ -19,12 +19,13 @@
 class CmdLineApp(cmd2.Cmd):
     """ Example cmd2 application. """
     def __init__(self, ip_addr=None, port=None, transcript_files=None):
-        self.shortcuts.update({'&': 'speak'})
-        self.maxrepeats = 3
-
+        shortcuts = dict(self.DEFAULT_SHORTCUTS)
+        shortcuts.update({'&': 'speak'})
         # Set use_ipython to True to enable the "ipy" command which embeds and interactive IPython shell
-        super().__init__(use_ipython=False, transcript_files=transcript_files, multiline_commands=['orate'])
+        super().__init__(use_ipython=False, transcript_files=transcript_files, multiline_commands=['orate'],
+                         shortcuts=shortcuts)
 
+        self.maxrepeats = 3
         # Make maxrepeats settable at runtime
         self.settable['maxrepeats'] = 'Max number of `--repeat`s allowed'
 

examples/example.py

@@ -27,15 +27,13 @@ class CmdLineApp(cmd2.Cmd):
     MUMBLE_LAST = ['right?']
 
     def __init__(self):
-        self.maxrepeats = 3
-
-        # Add stuff to shortcuts before calling base class initializer
-        self.shortcuts.update({'&': 'speak'})
-
+        shortcuts = dict(self.DEFAULT_SHORTCUTS)
+        shortcuts.update({'&': 'speak'})
         # Set use_ipython to True to enable the "ipy" command which embeds and interactive IPython shell
-        super().__init__(use_ipython=False, multiline_commands=['orate'])
+        super().__init__(use_ipython=False, multiline_commands=['orate'], shortcuts=shortcuts)
 
         # Make maxrepeats settable at runtime
+        self.maxrepeats = 3
         self.settable['maxrepeats'] = 'max repetitions for speak command'
 
     speak_parser = argparse.ArgumentParser()

examples/pirate.py

@@ -28,15 +28,14 @@
 class Pirate(cmd2.Cmd):
     """A piratical example cmd2 application involving looting and drinking."""
     def __init__(self):
+        """Initialize the base class as well as this one"""
+        shortcuts = dict(self.DEFAULT_SHORTCUTS)
+        shortcuts.update({'~': 'sing'})
+        super().__init__(multiline_commands=['sing'], terminators=[MULTILINE_TERMINATOR, '...'], shortcuts=shortcuts)
+
         self.default_to_shell = True
         self.songcolor = Fore.BLUE
 
-        # Add stuff to shortcuts before calling base class initializer
-        self.shortcuts.update({'~': 'sing'})
-
-        """Initialize the base class as well as this one"""
-        super().__init__(multiline_commands=['sing'], terminators=[MULTILINE_TERMINATOR, '...'])
-
         # Make songcolor settable at runtime
         self.settable['songcolor'] = 'Color to ``sing`` in (black/red/green/yellow/blue/magenta/cyan/white)'
 

examples/plumbum_colors.py

@@ -66,14 +66,12 @@ class CmdLineApp(cmd2.Cmd):
     MUMBLE_LAST = ['right?']
 
     def __init__(self):
-        self.maxrepeats = 3
-
-        # Add stuff to shortcuts before calling base class initializer
-        self.shortcuts.update({'&': 'speak'})
-
+        shortcuts = dict(self.DEFAULT_SHORTCUTS)
+        shortcuts.update({'&': 'speak'})
         # Set use_ipython to True to enable the "ipy" command which embeds and interactive IPython shell
-        super().__init__(use_ipython=True, multiline_commands=['orate'])
+        super().__init__(use_ipython=True, multiline_commands=['orate'], shortcuts=shortcuts)
 
+        self.maxrepeats = 3
         # Make maxrepeats settable at runtime
         self.settable['maxrepeats'] = 'max repetitions for speak command'