pyfzf

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This doesn't write to a temporary file before prompting, it communicates with the subprocess directly given any iterator, sending lines as they're processed.

It also lets you send any fzf CLI options as args/kwargs, or decorate a function which returns an iterator to use as fzf input (see below for examples)

A python wrapper for junegunn's fzf.

Requirements

• Python 3.6+
• fzf

Note: fzf must be installed and available on $PATH.

Installation

pip install pyfzf_iter

Usage

from pyfzf.pyfzf import FzfPrompt

fzf = FzfPrompt()
fzf = FzfPrompt(default_options="--reverse")

If fzf is not available on PATH, you can specify a location

fzf = FzfPrompt('/path/to/fzf')

Simply pass a sequence of items to the prompt function to invoke fzf

fzf.prompt(range(0,10))

You can pass additional positional arguments to fzf.

fzf.prompt(range(0,10), '--multi', '--cycle')
fzf.prompt(range(0,50), 'multi', 'cycle', height='20%')
fzf.prompt(range(0,50), 'x', 'i', 'm', '--tac')

Items are streamed to the fzf process one line at a time, you can pass any sort of iterator or generator as the first argument. For example, a file object, or a glob of files to search for, displaying a preview:

fzf.prompt(open("README.md"), "-m", delimiter="")

from pathlib import Path
fzf.prompt(Path(".").rglob("*.md"), "-m", r"--preview='cat {}'")

Items are delimited with \n by default, you can also change the delimiter (useful for multiline items):

>>> fzf.prompt(["5\n10", "15\n20"], '--read0', '-m', delimiter='\0')
['15\n20']

You can also wrap a decorate a function with wrap, which then runs fzf when you call the function:

from pyfzf import FzfPrompt

fzf = FzfPrompt()

@fzf.wrap("--tac")
def items(n: int):
    return range(n)

# prompts you to pick one of the items with fzf
items(n=50)