here's an example of a simple command line application that uses the cmd module, and demonstrates how to implement tab-completion for arguments:
import cmd
class MyApp(cmd.Cmd):
def do_greet(self, name):
"""
Greets a person with their name.
"""
print(f"Hello, {name}!")
def complete_greet(self, text, line, begidx, endidx):
"""
Tab-completion function for the greet command.
"""
return [name for name in ["John", "Jane", "Bob"] if name.startswith(text)]
if __name__ == "__main__":
MyApp().cmdloop()
This example defines a simple command greet that takes a single argument, a name. The complete_greet function is used to provide tab-completion for the name argument. In this example, it returns a list of three names ("John", "Jane", "Bob") that match the text entered by the user so far.
To test the tab-completion, start the application and enter the greet command followed by a space. Then press the tab key. The names that match the text entered so far should be displayed as suggestions.
The cmd module provides a built-in way to handle command-line arguments using the argparse module. You can use the do_command() method and the arg_string variable to access the arguments passed to a command, and the completenames() method to provide tab-completion for arguments. Here's an example:
import cmd
class Example(cmd.Cmd):
def do_greet(self, arg):
'''greet <name> - Greet the person with the provided name.'''
print(f"Hello, {arg}!")
def complete_greet(self, text, line, begidx, endidx):
'''Tab-completion for the "greet" command.'''
names = ["John", "Mary", "Mike", "Sarah"]
if text:
return [name for name in names if name.startswith(text)]
else:
return names
Example().cmdloop()
here's an example of a simple command line application that uses the cmd module, and demonstrates how to implement tab-completion for arguments:
This example defines a simple command greet that takes a single argument, a name. The complete_greet function is used to provide tab-completion for the name argument. In this example, it returns a list of three names ("John", "Jane", "Bob") that match the text entered by the user so far.
To test the tab-completion, start the application and enter the greet command followed by a space. Then press the tab key. The names that match the text entered so far should be displayed as suggestions.
The cmd module provides a built-in way to handle command-line arguments using the argparse module. You can use the do_command() method and the arg_string variable to access the arguments passed to a command, and the completenames() method to provide tab-completion for arguments. Here's an example: