[PATCH v1 15/15] configure: Bump the minimum required Python version to 3.6

[Alex Bennée]

From: Thomas Huth <thuth@redhat.com>

All our supported build platforms have Python 3.6 or newer nowadays, and
there are some useful features in Python 3.6 which are not available in
3.5 yet (e.g. the type hint annotations which will allow us to statically
type the QAPI parser), so let's bump the minimum Python version to 3.6 now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200923162908.95372-1-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 docs/conf.py                  | 4 ++--
 configure                     | 4 ++--
 tests/qemu-iotests/iotests.py | 2 --
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index 0dbd90dc1124..8aeac40124cb 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -36,9 +36,9 @@ from sphinx.errors import ConfigError
 # In newer versions of Sphinx this will display nicely; in older versions
 # Sphinx will also produce a Python backtrace but at least the information
 # gets printed...
-if sys.version_info < (3,5):
+if sys.version_info < (3,6):
     raise ConfigError(
-        "QEMU requires a Sphinx that uses Python 3.5 or better\n")
+        "QEMU requires a Sphinx that uses Python 3.6 or better\n")
 
 # The per-manual conf.py will set qemu_docdir for a single-manual build;
 # otherwise set it here if this is an entire-manual-set build.
diff --git a/configure b/configure
index b81868cf0231..c5f1b3bec6a8 100755
--- a/configure
+++ b/configure
@@ -1964,8 +1964,8 @@ fi
 
 # Note that if the Python conditional here evaluates True we will exit
 # with status 1 which is a shell 'false' value.
-if ! $python -c 'import sys; sys.exit(sys.version_info < (3,5))'; then
-  error_exit "Cannot use '$python', Python >= 3.5 is required." \
+if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
+  error_exit "Cannot use '$python', Python >= 3.6 is required." \
       "Use --python=/path/to/python to specify a supported Python."
 fi
 
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 91e4a5712609..f48460480a99 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -40,8 +40,6 @@ sys.path.append(os.path.join(os.path.dirname(__file__), '..', 
'..', 'python'))
 from qemu import qtest
 from qemu.qmp import QMPMessage
 
-assert sys.version_info >= (3, 6)
-
 # Use this logger for logging messages directly from the iotests module
 logger = logging.getLogger('qemu.iotests')
 logger.addHandler(logging.NullHandler())
-- 
2.20.1