Source code for labgrid.driver.common

import attr
import subprocess

from ..binding import BindingError, BindingMixin
from .exception import ExecutionError

[docs]class Driver(BindingMixin): """ Represents a driver which is used externally or by other drivers. It implements functionality based on directly accessing the Resource or by building on top of other Drivers. Life cycle: - create - bind (n times) - activate - usage - deactivate """ def __attrs_post_init__(self): super().__attrs_post_init__() if is None: raise BindingError("Drivers can only be created on a valid target")
[docs]def check_file(filename, *, command_prefix=[]): if + ['test', '-r', filename]) != 0: raise ExecutionError("File {} is not readable".format(filename))