Python 用 jinja2 替换多个值

Question

提问by user3605780

I have a variable in jinja2: test1 = "this is value1 and this is value2"

我在 jinja2 中有一个变量： test1 = "this is value1 and this is value2"

with:

和：

{{ test1 | replace("value1","my_value1")  }}

I can replace value1 but I also need to replace value2 how can I do this?

我可以替换 value1 但我也需要替换 value2 我该怎么做？

I tried:

我试过：

{{ test1 | replace("value1","my_value1") | replace("value2","my_value2") }}

But this then only replaces value2.

但这只会替换 value2。

Answer 1

Your expression seems to work just fine. If I create a template with the jinja2 expression from your question:

你的表情似乎工作得很好。如果我使用您问题中的 jinja2 表达式创建模板：

>>> import jinja2
>>> t = jinja2.Template('{{ test1 | replace("value1","my_value1") | replace("value2","my_value2") }}')

And then render it, passing in a value for test1that contains both of the target replacement strings:

然后渲染它，传入一个test1包含两个目标替换字符串的值：

>>> output = t.render(test1="this has both value1 and value2")

I get a string that has both values replaced:

我得到一个替换了两个值的字符串：

>>> print (output)
this has both my_value1 and my_value2
>>>

Answer 2

currently you can replace variable by jinja

目前你可以用jinja替换变量

{{ "Hello World"|replace("Hello", "Goodbye") }}
    -> Goodbye World

{{ "aaaaargh"|replace("a", "d'oh, ", 2) }}
    -> d'oh, d'oh, aaargh