[PYTHON] API clients generated are invalid

[nlarusstone]

Description

When generating the python clients for my swagger, I get import errors when trying to use them. Specifically I see the following error:

    if 'model_image_path' in params:
     ^
IndentationError: expected an indented block

Which is due to the fact that the generated code looks like the following:

        if 'name' in params:
              # noqa: E501
        if 'model_image_path' in params:
              # noqa: E501

Note that my swagger.json was autogenerated by the flask_restplus package: https://github.com/noirbizarre/flask-restplus

Swagger-codegen version

Version 3.0.16

~ $ swagger-codegen version
16:15:45.291 [main] DEBUG io.swagger.codegen.v3.cli.SwaggerCodegen - there are not options for command 'langs'
16:15:45.294 [main] DEBUG io.swagger.codegen.v3.cli.SwaggerCodegen - there are not options for command 'version'
3.0.16

Swagger declaration file content or url

https://gist.github.com/nlarusstone/a79a12b025900d9755dc0abf58b5a040

Command line used for generation

swagger-codegen generate -i swagger.json -l python -o /tmp/test

Steps to reproduce

Run swagger codegen on the swagger.json. (see above for command)
Create fresh virtualenv
Install swagger client package
Try to import swagger client from within a python shell

cd /tmp/test
mkvirtualenv clean
python setup.py install
python -c "import swagger_client"

Related issues/PRs

Couldn't find any

Suggest a fix/enhancement

It seems like the generated code is syntactically invalid python and that should be rectified. I don't know enough about the package to suggest how or where that would occur.

[mtripoli]

I confirm the same issue with the latest swagger-codegen version, 3.0.18

[nlarusstone]

This seems to work fine with version 3.0.11

[HugoMario]

thanks for reporting this issue, it's been fixed with swagger-codegen-generators#627

[H0r53]

@HugoMario - is this fix only in the current master branch and not the latest stable releases (ie: 3.0.18)? I tried using swagger-codegen via brew and the 3.0.18 jar and it still exists.

[HugoMario]

thanks @H0r53 for letting me know, i'll check and apply fix on v3

[HugoMario]

sorry @H0r53 , i got confuse, yea. these change were merged after 3.0.18 release, so they'll be added to 3.0.19