On Wed, Dec 16, 2020 at 09:11:18AM -0000, Local-State wrote:
> This seems okay, but when there are more than 10 arguments need to set
> their default values as correlated member variables (with the same
> name at most times), it'll be very painful and the codes turn out to
> be quite ugly.
If the code is ugly, that is a hint that having a method with more than
ten arguments is ugly.
But it isn't *very* ugly; each test only requires one line, or two if
you spread it out, and very simple code:
def method(self, spam, eggs, cheese, tomato, aardvark):
if spam is None: spam = self.spam
if eggs is None: eggs = self.eggs
# etc
A bit tedious to write, but it's clear and obvious.
> I wish a clean coding style, so I write something like this
> ```python
> def func(self, a: int = 'self'):
> for k, v in process(a=a, b=b):
> eval(f'{k} = v')
> a += 1
> return a
>
> def process(self, **kwargs):
> return {k: getattr(self, k) if (v == 'self' and k in
> self.__dict__.keys()) else v for k, v in kwargs.items()}
> ```
> That seems absolutely much worse for sure!
Indeed. There is nothing "clean" about that.
Are you sure it works? `eval(f'{k} = v')` will give a SyntaxError:
>>> eval('name = 1')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<string>", line 1
name = 1
^
SyntaxError: invalid syntax
--
Steve
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