python/qemu: add isort to pipenv

isort 5.0.0 through 5.0.4 has a bug that causes it to misinterpret
certain "from ..." clauses that are not related to imports.

isort < 5.1.1 has a bug where it does not handle comments near import
statements correctly.

Require 5.1.2 or greater.

isort can be run (in "check" mode) with 'isort -c qemu' from the python
root. isort can also be used to fix/rewrite import order automatically
by using 'isort qemu'.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Message-id: 20210527211715.394144-25-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>

python/Pipfile

@@ -5,6 +5,7 @@ verify_ssl = true
 
 [dev-packages]
 flake8 = ">=3.6.0"
+isort = ">=5.1.2"
 mypy = ">=0.770"
 pylint = ">=2.8.0"
 

python/Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "14d171b3d86759e1fdfb9e55f66be4a696b6afa8f627d6c4778f8398c6a66b98"
+            "sha256": "8173290ad57aab0b722c9b4f109519de4e0dd7cd1bad1e16806b78bb169bce08"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -46,7 +46,7 @@
                 "sha256:0a943902919f65c5684ac4e0154b1ad4fac6dcaa5d9f3426b732f1c8b5419be6",
                 "sha256:2bb1680aad211e3c9944dbce1d4ba09a989f04e238296c87fe2139faa26d655d"
             ],
-            "markers": "python_version >= '3.6' and python_version < '4.0'",
+            "index": "pypi",
             "version": "==5.8.0"
         },
         "lazy-object-proxy": {