[PATCH v5 16/25] python: add mypy to pipenv

[John Snow <jsnow@redhat.com>]

0.730 appears to be about the oldest version that works with the
features we want, including nice human readable output (to make sure
iotest 297 passes), and type-parameterized Popen generics.

0.770, however, supports adding 'strict' to the config file, so require
at least 0.770.

Now that we are checking a namespace package, we need to tell mypy to
allow PEP420 namespaces, so modify the mypy config as part of the move.

mypy can now be run from the python root by typing 'mypy -p qemu'.

A note on mypy invocation: Running it as "mypy qemu/" changes the import
path detection mechanisms in mypy slightly, and it will fail. See
https://github.com/python/mypy/issues/8584 for a decent entry point with
more breadcrumbs on the various behaviors that contribute to this subtle
difference.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>
---
 python/Pipfile      |  1 +
 python/Pipfile.lock | 37 ++++++++++++++++++++++++++++++++++++-
 python/setup.cfg    |  1 +
 3 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/python/Pipfile b/python/Pipfile
index d1f7045f680..51c537b0d10 100644
--- a/python/Pipfile
+++ b/python/Pipfile
@@ -5,6 +5,7 @@ verify_ssl = true
 
 [dev-packages]
 flake8 = ">=3.6.0"
+mypy = ">=0.770"
 pylint = ">=2.6.0"
 
 [packages]
diff --git a/python/Pipfile.lock b/python/Pipfile.lock
index 869b0bdf67f..5f8aab117c3 100644
--- a/python/Pipfile.lock
+++ b/python/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "9f6d4857a6c72ad40fc1ec1e58cdb76f187a2986ac4156f0027e5eb798ec69a9"
+            "sha256": "65f010a8f2e55e9870d2b7e0d8af129516097d23abf2504f396552748b067ade"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -83,6 +83,41 @@
             ],
             "version": "==0.6.1"
         },
+        "mypy": {
+            "hashes": [
+                "sha256:0d2fc8beb99cd88f2d7e20d69131353053fbecea17904ee6f0348759302c52fa",
+                "sha256:2b216eacca0ec0ee124af9429bfd858d5619a0725ee5f88057e6e076f9eb1a7b",
+                "sha256:319ee5c248a7c3f94477f92a729b7ab06bf8a6d04447ef3aa8c9ba2aa47c6dcf",
+                "sha256:3e0c159a7853e3521e3f582adb1f3eac66d0b0639d434278e2867af3a8c62653",
+                "sha256:5615785d3e2f4f03ab7697983d82c4b98af5c321614f51b8f1034eb9ebe48363",
+                "sha256:5ff616787122774f510caeb7b980542a7cc2222be3f00837a304ea85cd56e488",
+                "sha256:6f8425fecd2ba6007e526209bb985ce7f49ed0d2ac1cc1a44f243380a06a84fb",
+                "sha256:74f5aa50d0866bc6fb8e213441c41e466c86678c800700b87b012ed11c0a13e0",
+                "sha256:90b6f46dc2181d74f80617deca611925d7e63007cf416397358aa42efb593e07",
+                "sha256:947126195bfe4709c360e89b40114c6746ae248f04d379dca6f6ab677aa07641",
+                "sha256:a301da58d566aca05f8f449403c710c50a9860782148332322decf73a603280b",
+                "sha256:aa9d4901f3ee1a986a3a79fe079ffbf7f999478c281376f48faa31daaa814e86",
+                "sha256:b9150db14a48a8fa114189bfe49baccdff89da8c6639c2717750c7ae62316738",
+                "sha256:b95068a3ce3b50332c40e31a955653be245666a4bc7819d3c8898aa9fb9ea496",
+                "sha256:ca7ad5aed210841f1e77f5f2f7d725b62c78fa77519312042c719ed2ab937876",
+                "sha256:d16c54b0dffb861dc6318a8730952265876d90c5101085a4bc56913e8521ba19",
+                "sha256:e0202e37756ed09daf4b0ba64ad2c245d357659e014c3f51d8cd0681ba66940a",
+                "sha256:e1c84c65ff6d69fb42958ece5b1255394714e0aac4df5ffe151bc4fe19c7600a",
+                "sha256:e32b7b282c4ed4e378bba8b8dfa08e1cfa6f6574067ef22f86bee5b1039de0c9",
+                "sha256:e3b8432f8df19e3c11235c4563a7250666dc9aa7cdda58d21b4177b20256ca9f",
+                "sha256:e497a544391f733eca922fdcb326d19e894789cd4ff61d48b4b195776476c5cf",
+                "sha256:f5fdf935a46aa20aa937f2478480ebf4be9186e98e49cc3843af9a5795a49a25"
+            ],
+            "index": "pypi",
+            "version": "==0.800"
+        },
+        "mypy-extensions": {
+            "hashes": [
+                "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d",
+                "sha256:2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8"
+            ],
+            "version": "==0.4.3"
+        },
         "pycodestyle": {
             "hashes": [
                 "sha256:2295e7b2f6b5bd100585ebcb1f616591b652db8a741695b3d8f5d28bdc934367",
diff --git a/python/setup.cfg b/python/setup.cfg
index a3fcf67f8d2..cdd8477292b 100644
--- a/python/setup.cfg
+++ b/python/setup.cfg
@@ -28,6 +28,7 @@ exclude = __pycache__,
 strict = True
 python_version = 3.6
 warn_unused_configs = True
+namespace_packages = True
 
 [pylint.messages control]
 # Disable the message, report, category or checker with the given id(s). You
-- 
2.29.2