def assignValue(self, value):
if not self.data.flags.writeable:<EOL><INDENT>raise RuntimeError("<STR_LIT>")<EOL><DEDENT>self.data.itemset(value)<EOL>
Assign a scalar value to a `netcdf_variable` of length one.

Parameters
----------
value : scalar
    Scalar value (of compatible type) to assign to a length-one netcdf
    variable. This value will be written to file.

Raises
------
ValueError
    If the input is not a scalar, or if the destination is not a length-one
    netcdf variable.