Can the Python language assign values in judgment statements?

I used to do CPP and Java, but I just came into contact with Python. In Java and CPP, in order to reduce the number of function calls, it is convenient to assign values directly to the judgment conditions of while or if statements. But in Python the following code reported an error, would you like to ask Python does not allow this way? 

class Fib(object):
    def call(self, num):
        L = []
        while (length = len(L))<num:
            if length==0:
                L.append(0)
            elif length==1:
                L.append(1)
            else:
                L.append(L[-1]+L[-2])
        return L

f = Fib()
print f(10)

the while statement judgment condition of the above code where the error is reported

Python
Apr.25,2021

python3.7 is a
that can be assigned in a conditional statement. Versions of python before

cannot be

.

Previous: Vue-cli3.0 webpack configuration exclude error

Next: React-native FlatFlist only renders the first screen

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
© 2021 CodesHelper
Advertising Contact us About us
Menu