The main difference between __str__ and __repr__ is that __str__ should return a string that is easy for humans to read, while __repr__ should return a string that is more machine-readable and is intended to be used for debugging. For example, __repr__ might return something like...
Python内置函数repr()和str()分别调用object.repr(self)和object.str(self)方法。第一个函数计算对象的官方表示,而第二个函数返回对象的非正式表示。对于整数对象,这两个函数的结果是相同的。>>> x = 1 >>> repr(x) '1' >>> str(x) '1'
First, let me reiterate the main points in Alex’s post: The default implementation is useless (it’s hard to think of one which wouldn’t be, but yeah) __repr__goal is to be unambiguous __str__goal is to be readable Container’s__str__uses contained objects’__repr__ >>>classF...
其他重要花絮知道: __str__上内置的容器使用__repr__ ,而不是__str__ ,因为它包含的项目。并且,尽管在典型的文档中找到了关于该主题的文字,但几乎没有人__repr__将对象的__repr__作为一个字符串, eval可以用它来构建一个相等的对象(它太难了,而且不知道相关模块是如何实际导入的它实际上是不可能的)。
Opposite Variations of Sets and Bytes Mutability in Built-in Types: A Summary Common Mutability-Related Gotchas Mutability in Custom Classes Techniques to Control Mutability in Custom Classes Conclusion Frequently Asked Questions Mark as Completed Share Recommended Video CourseDifferences Between Pyt...
1.The vide shws gd deeds such as visiting an elderly neighbr and asking if they need anything,letting a restaurant manager knw just hw great their waiter r waitress is,helping a classmate with their studies,asking smene wh lks lst if they need directins,and ffering t help ut with sme...
In a manner and on a scale unknown in France, politicians in Germany interfered in an unprecedented fashion with the university curriculum around 1930. The Thuringian minister of culture and member of the Nationalsozialistische Deutsche Arbeiterpartei (NSDAP), Wilhelm Frick, created a chair for the...
First, among plenty studies that have done in the electric field, research on the electricity consumption pattern between heavy and light industry is rare. So far as we know, this is the first paper to focus on the industrial difference of power load from a policy perspective. Second, as a...
Through the attraction between the brighter and less bright fireflies, the fireflies will eventually gather around the brightest firefly, which can realize the optimization of the objective function. We can use FA search methods to obtain the optimal result that satisfies Formula (18): N JNLS(x)...
1.%s,%r的区别在进行格式化输出时,%r与 %s的区别就好比 repr() 函数处理对象与 str() 函数处理对象的差别。%s ⇒ str(),比较智能;%r⇒ repr(),处理较为简单和直接;处理一些简单对象时,二者几乎没有差别,本文重点列举一些二者的差异化用法:1.1 处理字符串时 >> s = 'world' >> print('hello %s'%...