python flask template return first 150 characters

Question

I want to create meta description on my website, in this moment i have this function for get product description :

{{ product.description|nl2br }}

Need edit this function for get only the first 150 characters for create meta description, is possible this in template ? or need create this function in views.py ?

may be a duplicate of http://stackoverflow.com/questions/2872512/python-truncate-a-long-string — Charles-Antoine Fournel, Nov 10 '15 at 10:24
is not duplicate, I'm need in flask template not in python, in python is easy, just put [0:150] — selfmarket.net, Nov 10 '15 at 10:29
so you can use , as in twig , the | truncate function http://twig.sensiolabs.org/doc/extensions/text.html — Charles-Antoine Fournel, Nov 10 '15 at 10:38

score 13 · Accepted Answer · answered Nov 10 '15 at 10:41

13

jinja2 has a filter named truncate, the documentation is here:

{{ "foo bar baz"|truncate(9) }}
-> "foo ..."

so, you can try this one:

{{ product.description | truncate(150) }}

answered Nov 10 '15 at 10:41

lord63. j

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python flask template return first 150 characters

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