Retrieve value of netCDF global attribute by name in Python

Question

How do I retrieve the value of a global attribute from a netCDF file in Python by its name?

I have tried:

value = ncfile.getncattr(ncfile, global_attribute_name)

but I get the error:

NameError: name 'global_attribute_name' is not defined

I have also read the section of the netCDF4 API documentation that deals with global attributes, but I'm sure there's something I don't understand with the syntax.

Can anyone help? I'm an R user moving over to Python, please be gentle.

SuperStormer · Accepted Answer · 2020-12-01 05:42:23Z

3

This is how it worked for me:

value = ncfile.getncattr('my_attr')

edited Dec 1, 2020 at 5:42

SuperStormer

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answered Dec 1, 2020 at 0:51

Thomas Hearty

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Comments

titusjan · Accepted Answer · 2020-05-18 09:18:19Z

2

global_attribute_name is a parameter. You should replace it with the name of the attribute you are trying to retrieve, wrapped in quotes. So, let's say the name of the attribute is my_attr, then use

value = ncfile.getncattr(ncfile, 'my_attr')

answered May 18, 2020 at 9:18

titusjan

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1 Comment

Alison Bennett Over a year ago

Thank-you. I did try that, but received another error - probably related to something else in the script I'm working on. I'll accept your answer though. Cheers.

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