[PATCH core-updates] gnu: python-s3transfer: Fix build with Python 3.8.

> * gnu/packages/python-web.scm (python-s3transfer)[arguments]: Add a 'patch

> phase to fix a test to work under Python 3.8.

> ---

> gnu/packages/python-web.scm | 9 +++++++++

> 1 file changed, 9 insertions(+)

>

> diff --git a/gnu/packages/python-web.scm b/gnu/packages/python-web.scm

> index 27749246d8..56887ef9d4 100644

> --- a/gnu/packages/python-web.scm

> +++ b/gnu/packages/python-web.scm

> @@ -2204,6 +2204,15 @@ Betamax.")

> (arguments

> `(#:phases

> (modify-phases %standard-phases

> + (add-after 'unpack 'patch

> + (lambda _

> + ;; There's a small issue with one test with Python 3.8, this

> + ;; change has been suggested upstream:

> + ;; https://github.com/boto/s3transfer/pull/164

> + (substitute* "tests/unit/test_s3transfer.py"

> + (("super\\(FailedDownloadParts, self\\)\\.submit\\(function\\)")

> + "futures.Future()"))

> + #t))

> (replace 'check

> (lambda _

> ;; Some of the 'integration' tests require network access or