Fifo wrapper class

fifo.py

import os
import tempfile


class Fifo:
    def __init__(self, name=None, delete=True):
        self.delete = delete
        self.name = name if name else tempfile.mktemp()
        os.mkfifo(self.name)
        self._file = None

    def __iter__(self):
        with open(self.name) as f:
            for line in f:
                yield line
        if self.delete:
            os.remove(self.name)

Example:

import sh


output_file = io_utils.Fifo()
sh.hmmsearch('--domtblout', output_file.name, profiles_file, validation_data, _bg=True)
for line in output_file:
    print(line.strip())