butterfly_template

后端模板(butterfly 自带)

1 模板文本

一般放在 <butterfly_project>/templates 下

<p>Welcome, {{user_name}}!</p>
<p>Products:</p>
<ul>
{% for product in product_list %}
    <li>{{ product.name }}:
        {{ product.price|format_price }}</li>
{% endfor %}
</ul>

• 文本

• 注释：{# ... #}

• 数据替换：{{ ... }}，如：{{user_name}}，{{product.name}}

• 控制结构：{% ... %}

2 渲染模板

from templite import Templite
from collections import namedtuple

def  demo(req):
    with open("./templates/host_unit.tpl", "r") as f:
        template_text = f.read()

    Product = namedtuple("Product",["name", "price"])
    product_list = [Product("Apple", 1), Product("Fig", 1.5), Product("Pomegranate", 3.25)]

    def format_price(price):
        return "$%.2f" % price

    # 解析模板
    t = Templite(template_text, {"user_name":"Charlie", "product_list":product_list}, {"format_price":format_price})
    # 渲染模板
    print t.render()

if __name__ == "__main__":
    demo()