为变量分配新值时出错

Question

I was working with scope in python

a = 10
{
    a = 33
}

and I got this error,

File "", line 3 a= 33 ^ SyntaxError: invalid syntax

so it means block scope is only for functions in python?

Answer 1

def foo():
    a = 33
    print(f"Inside: {a}") # Inside: 33

a = 10
foo()
print(f"Outside: {a}") # Outside: 10

I think this example of function scope is the only way to get something like block scope in Python. Idea taken from OP and confirmed in Block scope in Python