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 qemu'.

Signed-off-by: John Snow <jsnow@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 d1f7045f68..51c537b0d1 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 eb5ae75a0c..376f95a6a8 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 +83,33 @@
             ],
             "version": "==0.6.1"
         },
+        "mypy": {
+            "hashes": [
+                "sha256:0a0d102247c16ce93c97066443d11e2d36e6cc2a32d8ccc1f705268970479324",
+                "sha256:0d34d6b122597d48a36d6c59e35341f410d4abfa771d96d04ae2c468dd201abc",
+                "sha256:2170492030f6faa537647d29945786d297e4862765f0b4ac5930ff62e300d802",
+                "sha256:2842d4fbd1b12ab422346376aad03ff5d0805b706102e475e962370f874a5122",
+                "sha256:2b21ba45ad9ef2e2eb88ce4aeadd0112d0f5026418324176fd494a6824b74975",
+                "sha256:72060bf64f290fb629bd4a67c707a66fd88ca26e413a91384b18db3876e57ed7",
+                "sha256:af4e9ff1834e565f1baa74ccf7ae2564ae38c8df2a85b057af1dbbc958eb6666",
+                "sha256:bd03b3cf666bff8d710d633d1c56ab7facbdc204d567715cb3b9f85c6e94f669",
+                "sha256:c614194e01c85bb2e551c421397e49afb2872c88b5830e3554f0519f9fb1c178",
+                "sha256:cf4e7bf7f1214826cf7333627cb2547c0db7e3078723227820d0a2490f117a01",
+                "sha256:da56dedcd7cd502ccd3c5dddc656cb36113dd793ad466e894574125945653cea",
+                "sha256:e86bdace26c5fe9cf8cb735e7cedfe7850ad92b327ac5d797c656717d2ca66de",
+                "sha256:e97e9c13d67fbe524be17e4d8025d51a7dca38f90de2e462243ab8ed8a9178d1",
+                "sha256:eea260feb1830a627fb526d22fbb426b750d9f5a47b624e8d5e7e004359b219c"
+            ],
+            "index": "pypi",
+            "version": "==0.790"
+        },
+        "mypy-extensions": {
+            "hashes": [
+                "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d",
+                "sha256:2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8"
+            ],
+            "version": "==0.4.3"
+        },
         "pycodestyle": {
             "hashes": [
                 "sha256:2295e7b2f6b5bd100585ebcb1f616591b652db8a741695b3d8f5d28bdc934367",
@@ -149,6 +176,14 @@
             "markers": "implementation_name == 'cpython' and python_version < '3.8'",
             "version": "==1.4.1"
         },
+        "typing-extensions": {
+            "hashes": [
+                "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918",
+                "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c",
+                "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"
+            ],
+            "version": "==3.7.4.3"
+        },
         "wrapt": {
             "hashes": [
                 "sha256:b62ffa81fb85f4332a4f609cab4ac40709470da05643a082ec1eb88e6d9b97d7"
diff --git a/python/setup.cfg b/python/setup.cfg
index 206e5a91dc..308805b43f 100755
--- a/python/setup.cfg
+++ b/python/setup.cfg
@@ -25,6 +25,7 @@ extend-ignore = E722  # Prefer pylint's bare-except checks to flake8's
 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
-- 
2.26.2

On Tue, Oct 20, 2020 at 03:35:52PM -0400, John Snow wrote:
> 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 qemu'.
> 
> Signed-off-by: John Snow <jsnow@redhat.com>
> ---

Reviewed-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>