2021年2月21日 · The returns of repr() and str() are identical for int x, but there's a difference between the return values for str y-- one is formal and the other is informal. One of the most …

repr actually calls a magic method __repr__ of x, which gives the string containing the representation of the value 'foo' assigned to x. So it returns 'foo' inside the string "" resulting in …

An actual repr will probably not be very helpful as the output of print([your, objects]). To qualify this, in my experience, the most useful use case of the repr function is to put a string inside …

Called by the repr() built-in function and by string conversions (reverse quotes) to compute the "official" string representation of an object. If at all possible, this should look like a valid Python …

2010年9月21日 · repr(obj) calls. obj.__repr__ the purpose of __repr__ is that it provides a 'formal' representation of the object that is supposed to be a expression that can be evaled to create …

I write this code: class Item: def __init__(self, name): self._name = name; def __str__(self): return "Item: %s" % self._name When I run print((Item("Car"),)) the ...

2013年3月12日 · If repr(A) were to just return 'A', that'd be meaningless. You are not recreating A , you'd just be referencing it then. "type('A', (object,), {})" would be closer to reflecting the class …

2017年6月3日 · Called by the repr() built-in function to compute the “official” string representation of an object. If at all possible, this should look like a valid Python expression that could be …

2021年1月30日 · For types that have a literal notation (str, int, float, list, etc.) the repr() returns a string that can be used to create the type again. That is nice , but not a requirement. The main …

2015年8月5日 · Called by the repr() built-in function and by string conversions (reverse quotes) to compute the “official” string representation of an object. If at all possible, this should look like a …