def _gen_fill_zeros(name):
name = name.strip('<STR_LIT>')<EOL>if '<STR_LIT>' in name:<EOL><INDENT>fill_value = np.inf<EOL><DEDENT>elif '<STR_LIT>' in name:<EOL><INDENT>fill_value = np.nan<EOL><DEDENT>else:<EOL><INDENT>fill_value = None<EOL><DEDENT>return fill_value<EOL>
Find the appropriate fill value to use when filling in undefined values
in the results of the given operation caused by operating on
(generally dividing by) zero.

Parameters
----------
name : str

Returns
-------
fill_value : {None, np.nan, np.inf}