environment/lib/python2.7/site-packages/IPython/zmq/kernelmanager.py
def validate_string_list(lst):
    """Validate that the input is a list of strings.

    Raises ValueError if not."""
    if not isinstance(lst, list):
        raise ValueError('input %r must be a list' % lst)
    for x in lst:
        if not isinstance(x, basestring):
            raise ValueError('element %r in list must be a string' % x)
def validate_string_list(lst):
    """Validate that the input is a list of strings.

    Raises ValueError if not."""
    if not isinstance(lst, list):
        raise ValueError('input %r must be a list' % lst)
    for x in lst:
        if not isinstance(x, basestring):
            raise ValueError('element %r in list must be a string' % x)
Validate that the input is a list of strings.

    Raises ValueError if not.