Re-ordering the makefile directories a bit to benefit travis caching

.travis.yml

@@ -9,11 +9,7 @@ env:
 sudo: false
 cache:
   directories:
-  - python2.6
-  - python2.7
-  - python3.2
-  - python3.3
-  - python3.4
+  - pythons
 # Note on these cache directories: "make build" downloads and installs a fresh
 # python in those directories.
 

Makefile

 HERE = $(shell pwd)
 PYTHON_VER ?= 2.7
-PYTHON_PATH = $(HERE)/python$(PYTHON_VER)
+PYTHON_PATH = $(HERE)/pythons/$(PYTHON_VER)
+PYTHON_BUILD_DIR = $(HERE)/python_builds
 
 ifeq ($(PYTHON_VER),2.6)
 	PYTHON_MINOR ?= 2.6.8
@@ -35,15 +36,16 @@ all: build
 $(PYTHON_PATH)/bin/$(PYTHON_EXE):
 	@echo "Installing Python"
 	mkdir -p $(PYTHON_PATH)
-	cd $(PYTHON_PATH) && \
+	mkdir -p $(PYTHON_BUILD_DIR)
+	cd $(PYTHON_BUILD_DIR) && \
 	curl --progress-bar --location $(PYTHON_DOWNLOAD) | tar -zx
 ifeq ($(PYTHON_VER),2.6)
-	cd $(PYTHON_PATH) && \
+	cd $(PYTHON_BUILD_DIR) && \
 	curl --progress-bar -L https://raw.github.com/collective/buildout.python/ad45adb78bfa37542d62a394392d5146fce5af34/src/issue12012-sslv2-py26.patch > ssl.patch
-	cd $(PYTHON_PATH)/$(PYTHON_ARCHIVE) && \
+	cd $(PYTHON_BUILD_DIR)/$(PYTHON_ARCHIVE) && \
 	patch -p0 < ../ssl.patch
 endif
-	cd $(PYTHON_PATH)/$(PYTHON_ARCHIVE) && \
+	cd $(PYTHON_BUILD_DIR)/$(PYTHON_ARCHIVE) && \
 	./configure --prefix $(PYTHON_PATH) $(PYTHON_CONFIGURE_ARGS) >/dev/null 2>&1 && \
 	make >/dev/null 2>&1 && \
 	make install >/dev/null 2>&1
@@ -53,7 +55,7 @@ build: $(PYTHON_PATH)/bin/$(PYTHON_EXE)
 	$(PYTHON_PATH)/bin/$(PYTHON_EXE) dev.py
 
 clean:
-	rm -rf $(BUILD_DIRS)
+	rm -rf $(BUILD_DIRS) $(PYTHON_BUILD_DIR)
 
 test:
 	$(HERE)/bin/test -1 -v