Function write_all

tests/test_wallet.py:1295–1299

Wrapper, since os.write can do partial writes

(fd, bytestr)

def write_all(fd, bytestr):
    """Wrapper, since os.write can do partial writes"""
    off = 0
    while off < len(bytestr):
        off += os.write(fd, bytestr[off:])


class HsmTool(TailableProc):