Hi,

On Tue, 28 May 2019 15:27:43 +0430
"h.nasajpour" <h.nasajpour@pantherx.org> wrote:

> +    (source (origin
> +      (method url-fetch)
> +      (uri (pypi-uri "Flask-Cors" version))
> +      (sha256 (base32 "1v6gq4vjgyxi8q8lxawpdfhq01adb4bznnabp08ks5nzbwibz43y"))))

Strange indentation. 

> +    (arguments
> +     `(#:tests? #f))

Please add a comment with the reason.
 
> +    (propagated-inputs
> +      `(("python-six" ,python-six)
> +        ("python-flask" ,python-flask)))
> +    (home-page "https://github.com/corydolphin/flask-cors")
> +    (synopsis "A Flask extension adding a decorator for CORS support")
> +    (description
> +     "A Flask extension adding a decorator for CORS support")

Please add text to the description that describes what CORS is.
Also, the description should be full sentences.