support python 3.9,3.10

[shenweichen]

• support python 3.9,3.10
• update multi head self attention

[codecov[bot]]

Codecov Report

Base: 95.31% // Head: 94.45% // Decreases project coverage by -0.85% :warning:

Coverage data is based on head (11c37f3) compared to base (9564e05). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #495 +/- ## ========================================== - Coverage 95.31% 94.45% -0.86% ========================================== Files 60 41 -19 Lines 3158 2563 -595 ========================================== - Hits 3010 2421 -589 + Misses 148 142 -6 ``` | Flag | Coverage Δ | | |---|---|---| | pytest | `94.45% <100.00%> (-0.86%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://codecov.io/gh/shenweichen/DeepCTR/pull/495?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6) | Coverage Δ | | |---|---|---| | [deepctr/layers/sequence.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci9sYXllcnMvc2VxdWVuY2UucHk=) | `93.72% <100.00%> (+0.20%)` | :arrow_up: | | [deepctr/estimator/utils.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci9lc3RpbWF0b3IvdXRpbHMucHk=) | `83.33% <0.00%> (-12.70%)` | :arrow_down: | | [deepctr/estimator/feature\_column.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci9lc3RpbWF0b3IvZmVhdHVyZV9jb2x1bW4ucHk=) | `97.05% <0.00%> (-2.95%)` | :arrow_down: | | [deepctr/\_\_init\_\_.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci9fX2luaXRfXy5weQ==) | | | | [deepctr/feature\_column.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci9mZWF0dXJlX2NvbHVtbi5weQ==) | | | | [deepctr/models/deepfm.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci9tb2RlbHMvZGVlcGZtLnB5) | | | | [deepctr/models/xdeepfm.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci9tb2RlbHMveGRlZXBmbS5weQ==) | | | | [deepctr/utils.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci91dGlscy5weQ==) | | | | [deepctr/models/deepfefm.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci9tb2RlbHMvZGVlcGZlZm0ucHk=) | | | | [deepctr/layers/\_\_init\_\_.py](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6#diff-ZGVlcGN0ci9sYXllcnMvX19pbml0X18ucHk=) | | | | ... and [13 more](https://codecov.io/gh/shenweichen/DeepCTR/pull/495/diff?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6) | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=%E6%B5%85%E6%A2%A6)

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