def get_gkey(self, keyword):
    "Retrieve a requested global keyword\n\n        The method searches the list of global keywords\n        for a fitting keyword. In case that the requested\n        keyword exists, it is returned.\n        If not 'None' is returned\n\n        Parameters\n        ----------\n        keyword: str\n            name of the requested keyword\n\n        Returns\n        -------\n        key: str or None\n            the requested keyword or 'None'\n        "
    rkey = None
    index = self._get_gkey_index(keyword)
    if (index > (- 1)):
        return self.gkeys[index]
    else:
        return rkey
Retrieve a requested global keyword

The method searches the list of global keywords
for a fitting keyword. In case that the requested
keyword exists, it is returned.
If not 'None' is returned

Parameters
----------
keyword: str
    name of the requested keyword

Returns
-------
key: str or None
    the requested keyword or 'None'
def get_gkey(self, keyword):
    "Retrieve a requested global keyword\n\n        The method searches the list of global keywords\n        for a fitting keyword. In case that the requested\n        keyword exists, it is returned.\n        If not 'None' is returned\n\n        Parameters\n        ----------\n        keyword: str\n            name of the requested keyword\n\n        Returns\n        -------\n        key: str or None\n            the requested keyword or 'None'\n        "
    rkey = None
    index = self._get_gkey_index(keyword)
    if (index > (- 1)):
        return self.gkeys[index]
    else:
        return rkey