Python for 循环内 function 多个参数

Question

I'm currently stuck on a problem and looking for some community help.

I can't figure out this problem. Trying to replace {{ }} parameter within multiple strings with given dictionary values within a function.

Dictionary -

{'id' : 'nyc', 'weather':'sunny','id2':'bos','weather2':'snowy'}

string1 -

"""
It was {{weather}} in {{id}}
"""

string2 -

"""
It was {{weather2}} in {{id2}}
"""

Obviously a very simplified example...

for loop something like this -

def replace_params(qry):
    for k,v in qry_params.items():
        qry = qry.replace('{{'+k+'}}', v)
    
    return qry


replace_params(string1,string2)

So output becomes

"""
It was sunny in nyc
"""

I understand there are other approaches to this, but do need help with given problem using double {{ }}

Answer 1

As mentioned in the comments, double curly braces suggest jinja2 template. You need yto install jinja2

Then

from jinja2 import Template

data = {'id' : 'nyc', 'weather':'sunny','id2':'bos','weather2':'snowy'}

string1 = """
It was {{weather}} in {{id}}
"""

string2 = """
It was {{weather2}} in {{id2}}
"""

def render(values, *args):
    return [Template(arg).render(values).strip() for arg in args]

print(render(data, string1, string2))

Output

['It was sunny in nyc', 'It was snowy in bos']
    

All that said - if you really work with template - this is not how it should be, something like this

from jinja2 import Template

data = [{'id' : 'nyc', 'weather':'sunny'},{'id':'bos','weather':'snowy'}]
my_template = Template("It was {{weather}} in {{id}}")

def render(values, template):
    return [my_template.render(item) for item in values]

print(render(data, my_template))

You may have the loop inside the template. But for something like this it's easier ti use single braces and f-string or str.format() instead of jinja tempalte.