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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 _fulfills_version_spec(version, version_spec):
    '''
    Check version number against version specification info and return a
    boolean value based on whether or not the version number meets the
    specified version.
    '''
    for oper, spec in version_spec:
        if oper is None:
            continue
        if not salt.utils.versions.compare(ver1=version, oper=oper, ver2=spec, cmp_func=_pep440_version_cmp):
            return False
    return True