see the 3 small piece of code, i cannot understand why it result as
this.
1.
def test():
abc="111"
def m1():
print(abc)
m1()
test()
Output: 111
2.
def test():
abc="111"
def m1():
print(abc)
abc+="222"
m1()
test()
Output:
print(abc)
UnboundLocalError: local variable 'abc' referenced before assignment
3.
def test2():
abc=[111]
def m1():
print(abc)
abc.append(222)
m1()
print(abc)
test2()
Output:
[111]
[111,222]
it seems "you cannot change the outter scope values but can use it
readonly."
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