Why error... Tell mistake or correct plz

Question

if num = 0.4:
print("num")

Answer 1

To compare equality you use "==". "=" is a purely assignment operator and for simplicity sake, if you use assignment as a value you get errors.

Answer 2

"=" assigns a value
"==" will check conditions.

Answer 3

The mistake is from the definition of your variable. Your number has decimal point, so you have to define it properly with the "double"
Try:
if (double num ==0.4);
print(num)

Answer 4

if num == 0.4:
print("num")

Answer 5

if "num" == 0.4:
print("num")
I rewrite it as this👆👆
Still No output
What should I do to get an output
Concept?

Answer 6

What exactly do you need to do?