CODEWITHSUNDEEP
pythonpyramidmako
Hollister
Hollister

Reputation: 3918

Pyramid setting mako.imports not working

I'm trying to use the mako.imports setting to avoid importing modules in every template file.

Originally I had a module-level block at the top of every template like:

<%!
    import logging
%>

And I'd like to replace that with a setting in the .ini file:

mako.imports = 'import logging'

This does not work as the template just throws NameError: name 'logging' is not defined when I attempt to use it.

It appears the mako.imports doesn't even get called, since a setting like:

mako.imports = 'import SpamAndEggs'

doesn't throw an error.

I'm using Pyramid 1.3 and Mako 0.7.0.

Upvotes: 4

Views: 400

Answers (2)

Hollister
Hollister

Reputation: 3918

From pylons-discuss, the syntax is:

mako.imports = 
    import logging 
    import some.other.module

Import statements separated by line breaks. I think the docs should state this with an example, as "string list" to Python people is rather different.

Thanks to Mike Merickel.

Upvotes: 2

Hollister
Hollister

Reputation: 3918

Ok, so looking at the Pyramid-generated Mako template code, it just literally outputs what's in that config setting, quotes, brackets and all.

So, the syntax has to be:

mako.imports = import logging

with multiple imports as:

mako.imports = import logging, some.other.module

and not any of these:

mako.imports = 'import logging'
mako.imports = ['import logging', 'some.other.module']
mako.imports = import logging, import some.other.module

The last throws a mako.exceptions.SyntaxException since it's not valid Python, but the first 2 fail silently, doing nothing, since they just output a literal as a line of code.

I didn't infer this from the documentation that reads "String list of Python statements, typically individual “import” lines" (but maybe I just didn't understand it correctly).

Thanks to Mike Bayer for his post on Mako.

Upvotes: 1

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