英文:
assign the condition of the if statement to a variable
问题
我有一段很长的代码片段，我正在尝试缩短它。 现在我有这样的代码：
statuses = cleaned_data.get("statuses")
if statuses:
for status in statuses:
...
如果我可以在if条件内赋值cleaned_data.get("statuses")的值，就会很好，就像这样：
if cleaned_data.get("statuses") as statuses
然后继续执行。这在Python中可行吗？
英文:
I have a long snippet of code and i am trying to shorten it.
This is what I have now:
statuses = cleaned_data.get("statuses")
if statuses:
for status in statuses:
...
it would be nice if i can assign the value of cleaned_data.get("statuses") inside the if condition, like this:
if cleaned_data.get("statuses") as statuses
and carry on.
Is it doable in python?
答案1
得分: 1
你可以使用赋值表达式（也称为海象运算符）：
if statuses := cleaned_data.get("statuses"):
for status in statuses:
英文:
You can use Assignment Expression (a.k.a walrus operator):
if statuses := cleaned_data.get("statuses"):
for status in statuses:
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