ValueError: too many values to unpack

too many values to unpack

这种错误是指一个tuple值赋给一个tuple变量时，变量个数不够造成的。如：
a, b = (1, 2, 3)

 

for example: if ditc_a is dict, following code will get this error

for key, value in ditc_a:

    ...

 

 

Correct:

for key, value in ditc_a.items():

    ...