python if not null or empty code example

Example 1: check if string is empty python

my_str = ""
if not my_str:
  print("empty")
else:
  print("not empty")
#output: empty

Example 2: python if not null

#variable
var = "hello python"

#check is not null
if var is not NaN:
    print('Var is not null')

Example 3: python check empty string

if not myString: