python - 将文本中的变量名称替换为该变量的值

Question

我有一个模板，它使用占位符来表示将要填充的不同内容。假设该模板具有:

"This article was written by AUTHOR, who is solely responsible for its content."

作者姓名存储在变量author中。

所以我当然这样做:

wholeThing = wholeThing.replace('AUTHOR', author)

问题是我有 10 个这样的自命名变量，如果我能像这样，为了简洁而只使用 4 个变量，那就更经济了:

def(self-replace):
    ...
    return

wholeThing = wholeThing.self-replace('AUTHOR', 'ADDR', 'PUBDATE', 'MF_LINK')

Answer 1

使用 Python 3.6+，您可能会发现格式化字符串文字 ( PEP 498 ) 非常高效:

# data from @bohrax

d = {"publication": "article", "author": "Me"}
template = f"This {d['publication']} was written by {d['author']}, who is solely responsible for its content."

print(template)

This article was written by Me, who is solely responsible for its content.