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#!/usr/bin/env python
"""
Example of using the control-space key binding for auto completion.
"""
from prompt_toolkit import prompt
from prompt_toolkit.completion import WordCompleter
from prompt_toolkit.key_binding import KeyBindings
animal_completer = WordCompleter(
[
"alligator",
"ant",
"ape",
"bat",
"bear",
"beaver",
"bee",
"bison",
"butterfly",
"cat",
"chicken",
"crocodile",
"dinosaur",
"dog",
"dolphin",
"dove",
"duck",
"eagle",
"elephant",
"fish",
"goat",
"gorilla",
"kangaroo",
"leopard",
"lion",
"mouse",
"rabbit",
"rat",
"snake",
"spider",
"turkey",
"turtle",
],
ignore_case=True,
)
kb = KeyBindings()
@kb.add("c-space")
def _(event):
"""
Start auto completion. If the menu is showing already, select the next
completion.
"""
b = event.app.current_buffer
if b.complete_state:
b.complete_next()
else:
b.start_completion(select_first=False)
def main():
text = prompt(
"Give some animals: ",
completer=animal_completer,
complete_while_typing=False,
key_bindings=kb,
)
print("You said: %s" % text)
if __name__ == "__main__":
main()
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