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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _get_comparison_spec(pkgver):
    '''
    Return a tuple containing the comparison operator and the version. If no
    comparison operator was passed, the comparison is assumed to be an "equals"
    comparison, and "==" will be the operator returned.
    '''
    oper, verstr = salt.utils.pkg.split_comparison(pkgver.strip())
    if oper in ('=', ''):
        oper = '=='
    return oper, verstr