Python3: use int instead of long
Python3: use int instead of long

Using int for long int should not cause issues since python2.4.
c.f. https://docs.python.org/2.6/whatsnew/2.4.html#pep-237-unifying-long-integers-and-integers

Signed-off-by: IWAMOTO Toshihiro <8e41ae29694291a01b8efca6b4a0005a87ddb93e@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <93dac1fe9c4b2a3957982200319981492ad4976e@lab.ntt.co.jp>

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