在Python中格式化多行字符串的最优雅的方式

我有一个多行字符串，我想用自己的变量改变它的某些部分。我真的不喜欢用+运算符拼凑相同的文本。有更好的选择吗？在Python中格式化多行字符串的最优雅的方式

例如（内部引号是必需的）：

line = """Hi my name is "{0}". 
I am from "{1}". 
You must be "{2}"."""

我希望能够利用这个多次以形成一个较大的字符串，这将是这样的：

Hi my name is "Joan". 
I am from "USA". 
You must be "Victor". 

Hi my name is "Victor". 
I am from "Russia". 
You must be "Joan".

是有没有办法做这样的事情：

txt == "" 
for ...: 
    txt += line.format(name, country, otherName)

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2014-02-18 Joan Venge

info = [['ian','NYC','dan'],['dan','NYC','ian']] 
>>> for each in info: 
    line.format(*each) 


'Hi my name is "ian".\nI am from "NYC".\nYou must be "dan".' 
'Hi my name is "dan".\nI am from "NYC".\nYou must be "ian".'

星号运算符将将列表解压缩到format方法中。

来源

2014-02-18 20:10:47 IanAuld

line = """Hi my name is "{0}". 
I am from "{1}". 
You must be "{2}".""" 

tus = (("Joan","USA","Victor"), 
     ("Victor","Russia","Joan")) 

lf = line.format # <=== wit, direct access to the right method 

print '\n\n'.join(lf(*tu) for tu in tus)

结果

Hi my name is "Joan". 
I am from "USA". 
You must be "Victor". 

Hi my name is "Victor". 
I am from "Russia". 
You must be "Joan".

来源

2014-02-18 20:29:04 eyquem

除了列表中，您还可以使用字典。如果你有很多变量需要一次跟踪，这很有用。

text = """\ 
Hi my name is "{person_name}" 
I am from "{location}" 
You must be "{person_met}"\ 
""" 
person = {'person_name': 'Joan', 'location': 'USA', 'person_met': 'Victor'} 

print text.format(**person)

请注意，我输入文本的方式不同，因为它可以让我更容易地排列文本。你必须在开头的“”“和结尾的”“”之前添加一个'\'。

现在，如果你在列表中有几本词典，你可以很容易地做到

people = [{'person_name': 'Joan', 'location': 'USA', 'person_met': 'Victor'}, 
      {'person_name': 'Victor', 'location': 'Russia', 'person_met': 'Joan'}] 

alltext = "" 
for person in people: 
    alltext += text.format(**person)

或使用列表理解

alltext = [text.format(**person) for person in people]

来源

2014-02-18 20:33:03 abnowack

在Python中格式化多行字符串的最优雅的方式

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