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Format Strings in Python

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[开发(python) 所属分类 开发(python) | 发布者 店小二03 | 时间 2018 | 作者 红领巾 ] 0人收藏点击收藏

We have very powerful method str.format() in python through which you can do variable substitutions and value formatting.

Let’s understand the usage of format with couple of examples.


Format Strings in Python

Formatters work by putting in one or more replacement fields and placeholders defined by a pair of curly braces { } into a string and calling the str.format(). The value we want to put into the placeholders and concatenate with the string passed as parameters into the format function.

format() method takes any number of parameters. But, is divided into two types of parameters:

Positional parameters list of parameters that can be accessed with index of parameter inside curly braces {index} ,See the example below.


Format Strings in Python

Keyword parameters list of parameters of type key=value, that can be accessed with key of parameter inside curly braces {key}

See the example :


Format Strings in Python

we have another method of formatting string literals , as shown below:


Format Strings in Python

You could also call functions as shown below:


Format Strings in Python

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