Could you explain why the following generates 4 same elements list?

[fl]

Hi,

I cannot reason out why the code:
////////
def mpl():
    return [lambda x : i * x for i in range(4)]
    
print [m(2) for m in mpl()]
/////////

has result:

[6, 6, 6, 6]


I have tried to simplify the above code to an easy understanding form,
but fails. Either the modified code does not work, or it does not show
relation to the original code.
 
Could you explore it a little for me to understand it easier?

Thanks in advance.