Fixes hostpython build with macOS venv

.travis.yml

@@ -52,7 +52,7 @@ jobs:
         # installs java 1.8, android's SDK/NDK and p4a
         - make -f ci/makefiles/osx.mk
         - export JAVA_HOME=/Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home
-      script: make testapps-no-venv/armeabi-v7a
+      script: make testapps/armeabi-v7a
     - <<: *testapps
       name: Rebuild updated recipes
       script: travis_wait 30 make docker/run/make/rebuild_updated_recipes

Makefile

@@ -47,14 +47,6 @@ testapps/%: virtualenv
     python setup.py apk --sdk-dir $(ANDROID_SDK_HOME) --ndk-dir $(ANDROID_NDK_HOME) \
     --arch=$($@_APP_ARCH)
 
-testapps-no-venv/%:
-	pip3 install Cython==0.28.6
-	pip3 install -e .
-	$(eval $@_APP_ARCH := $(shell basename $*))
-	cd testapps/on_device_unit_tests/ && \
-    python3 setup.py apk --sdk-dir $(ANDROID_SDK_HOME) --ndk-dir $(ANDROID_NDK_HOME) \
-    --arch=$($@_APP_ARCH)
-
 clean:
 	find . -type d -name "__pycache__" -exec rm -r {} +
 	find . -type d -name "*.egg-info" -exec rm -r {} +

pythonforandroid/recipes/hostpython3/__init__.py

@@ -4,6 +4,7 @@
 from os.path import exists, join, isfile
 
 from pythonforandroid.logger import shprint
+from pythonforandroid.patching import is_version_lt
 from pythonforandroid.recipe import Recipe
 from pythonforandroid.util import (
     BuildInterruptingException,
@@ -35,6 +36,10 @@ class Hostpython3Recipe(Recipe):
     '''The default url to download our host python recipe. This url will
     change depending on the python version set in attribute :attr:`version`.'''
 
+    patches = (
+        ('patches/pyconfig_detection.patch', is_version_lt("3.8.3")),
+    )
+
     @property
     def _exe_name(self):
         '''

pythonforandroid/recipes/hostpython3/patches/pyconfig_detection.patch

@@ -0,0 +1,13 @@
+diff -Nru Python-3.8.2/Lib/site.py Python-3.8.2-new/Lib/site.py
+--- Python-3.8.2/Lib/site.py    2020-04-28 12:48:38.000000000 -0700
++++ Python-3.8.2-new/Lib/site.py        2020-04-28 12:52:46.000000000 -0700
+@@ -487,7 +487,8 @@
+                     if key == 'include-system-site-packages':
+                         system_site = value.lower()
+                     elif key == 'home':
+-                        sys._home = value
++                        # this is breaking pyconfig.h path detection with venv
++                        print('Ignoring "sys._home = value" override')
+
+         sys.prefix = sys.exec_prefix = site_prefix
+

pythonforandroid/recipes/python3/__init__.py

@@ -8,7 +8,7 @@
 from shutil import copy2
 
 from pythonforandroid.logger import info, warning, shprint
-from pythonforandroid.patching import version_starts_with
+from pythonforandroid.patching import version_starts_with, is_version_lt
 from pythonforandroid.recipe import Recipe, TargetPythonRecipe
 from pythonforandroid.util import (
     current_directory,
@@ -55,6 +55,8 @@ class Python3Recipe(TargetPythonRecipe):
     name = 'python3'
 
     patches = [
+        ('patches/pyconfig_detection.patch', is_version_lt("3.8.3")),
+
         # Python 3.7.1
         ('patches/py3.7.1_fix-ctypes-util-find-library.patch', version_starts_with("3.7")),
         ('patches/py3.7.1_fix-zlib-version.patch', version_starts_with("3.7")),

pythonforandroid/recipes/python3/patches/pyconfig_detection.patch

@@ -0,0 +1,13 @@
+diff -Nru Python-3.8.2/Lib/site.py Python-3.8.2-new/Lib/site.py
+--- Python-3.8.2/Lib/site.py    2020-04-28 12:48:38.000000000 -0700
++++ Python-3.8.2-new/Lib/site.py        2020-04-28 12:52:46.000000000 -0700
+@@ -487,7 +487,8 @@
+                     if key == 'include-system-site-packages':
+                         system_site = value.lower()
+                     elif key == 'home':
+-                        sys._home = value
++                        # this is breaking pyconfig.h path detection with venv
++                        print('Ignoring "sys._home = value" override')
+
+         sys.prefix = sys.exec_prefix = site_prefix
+