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Project description
(This is work in progress. Many things work, but APIs can change.)
prompt_toolkit is a Library for building interactive command lines in Python.
It could be a replacement for readline. It’s Pure Python, and has some advanced features:
Syntax highlighting of the input while typing. (Usually with a Pygments lexer.)
Multiline input
Advanced code completion
Both Emacs and Vi keybindings (Similar to readline), including reverse and forward incremental search
Both Python 2.7 and Python 3
Works well with Unicode double width characters. (Chinese input.)
Installation
pip install prompt-toolkit
The Python repl
Run ptpython to get an interactive Python prompt with syntaxt highlighting, code completion, etc…
If you prefer to have Vi keybindings (which currently are more completely implemented than the Emacs bindings), run ptpython --vi.
Using as a library
This is a library which allows you to build highly customizable input prompts. Every step (from key bindings, to line behaviour until the renderer can be customized.)
The simplest example looks like this:
from prompt_toolkit import CommandLine
from prompt_toolkit.line import Exit
def main():
# Create CommandLine instance
cli = CommandLine()
try:
while True:
code_obj = cli.read_input()
print('You said: ' + code_obj.text)
except Exit: # Quit on Ctrl-D keypress
return
if __name__ == '__main__':
main()
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