fix #2022 util._deserialize throws AttributeError in Python 3.7

[bejohu]

No description provided.

[wing328]

Thanks for the PR but your commit (as shown in the Commits tab) is not linked to your Github account, which means this PR won't count as your contribution in https://github.com/OpenAPITools/openapi-generator/graphs/contributors.

Let me know if you need help fixing it.

Ref: https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-can-i-update-commits-that-are-not-linked-to-my-github-account

[wing328]

cc @taxpon (2017/07) @frol (2017/07) @mbohlool (2017/07) @cbornet (2017/09) @kenjones-cisco (2017/11) @tomplus (2018/10) @Jyhess (2019/01)

[wing328]

@bejohu Is this fixing the same issue as #2884 ?

[GuillaumeSmaha]

@wing328 Yes, this is the same issue.
I tried without typing-inspect because I saw https://github.com/ilevkivskyi/typing_inspect doesn't support python 3.5

[wing328]

@GuillaumeSmaha 👌

@bejohu can you test #2884 to see if it works for you as well?

git checkout -b GuillaumeSmaha-fix_python_3.7 master
git pull https://github.com/GuillaumeSmaha/openapi-generator.git fix_python_3.7

[wing328]

@GuillaumeSmaha to clarify, does your fix (#2884 ) make the Python generator works with Python 3.5 for backward-compatibility?

[GuillaumeSmaha]

@wing328 Yes, I just tried and it works for 3.5. I also fixed a dumb bug 🤦‍♂️ b232d61

[wing328]

@bejohu please try the latest master. Let us know if you still encounter any issue.