Python check if variable exists, including None

Question

I have a jinja2 template being processed that includes:

<td>{{ '' if group[2] }} {{ group[2] }}</td>

I'm trying to add the to all items that contain group[2]. I want to include entries where a value exists including None. Currently the following is produced:

How can I modify {{ '' if group[2] }} so it runs for variables that have values including None.

Tbh unclear what your asking. is that even valid jinja2 code? — K DawG, Jul 11 '17 at 18:23
How do I mark a question as "already answered"? https://stackoverflow.com/questions/3842690/in-jinja2-how-do-you-test-if-a-variable-is-undefined — thegreatemu, Jul 11 '17 at 18:23
@thegreatemu I marked the other question as answering what I need, cheers. — Philip Kirkbride, Jul 11 '17 at 18:26

score 5 · Accepted Answer · answered Jul 11 '17 at 18:26

5

You can achieve that using Jinja2's is defined test:

<td>{{ '' if group[2] is defined }} {{ group[2] }}</td>

answered Jul 11 '17 at 18:26

Bovarysme

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Python check if variable exists, including None

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