Bump minimum python version to 3.5

m-kuhn · nyalldawson · commit 526ef598c222 · 2021-01-20T09:25:47.000+10:00
To get proper support for type hints
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -916,6 +916,10 @@ endif()
 # Python build dependency
 
 find_package(PythonLibrary REQUIRED)
+set(MIN_PYTHON_VERSION "3.5")
+if(${PYTHON_SHORT_VERSION} VERSION_LESS ${MIN_PYTHON_VERSION})
+    message(FATAL_ERROR "Python version ${PYTHON_SHORT_VERSION} is too old. Minimum Python version is ${MIN_PYTHON_VERSION}.")
+endif()
 
 set(MIN_PYTHON_VERSION "3.6")
 if(${PYTHON_SHORT_VERSION} VERSION_LESS ${MIN_PYTHON_VERSION})
diff --git a/INSTALL.md b/INSTALL.md
@@ -118,7 +118,7 @@ Optional dependencies:
 * for georeferencer - GSL >= 1.8
 * for PostGIS support - PostgreSQL >= 8.0.x
 * for gps plugin - gpsbabel
-* for mapserver export and PyQGIS - Python >= 3.3
+* for mapserver export and PyQGIS - Python >= 3.5
 * for python support - SIP >= 4.12, PyQt >= 5.3 must match Qt version, Qscintilla2
 * for qgis mapserver - FastCGI
 * for oracle provider - Oracle OCI library
