Python:常見error彙總

TypeError: string indices must be integers 
#TypeError:字符串索引必須是整數

TypeError: 'str' object does not support item assignment
#TypeError:“str”對象不支持項分配

test_dict = {}
test_dict['a'] = 'a'
test_dict['a']['b'] = 'b'
print(test_dict)

KeyError: 'network'