There is a difference in the first invert_res_block

[Sucran]

this version of tonylins https://github.com/tonylins/pytorch-mobilenet-v2/blob/212d47f1ebd66d6a34f6765aeb0e5abd1966321d/MobileNetV2.py#L30
has a difference with your version.

[Sucran]

I can not tell which one is correct, both two versions are work, now I follow the tonylins' version.