Use python instead of python2

Makefile

@@ -64,7 +64,7 @@ build/pyodide.asm.js: src/main.bc src/jsimport.bc src/jsproxy.bc src/js2python.b
 
 
 build/pyodide.asm.data: root/.built
-	python2 $(FILEPACKAGER) build/pyodide.asm.data --preload root/lib@lib --js-output=build/pyodide.asm.data.js --use-preload-plugins
+	python $(FILEPACKAGER) build/pyodide.asm.data --preload root/lib@lib --js-output=build/pyodide.asm.data.js --use-preload-plugins
 	uglifyjs build/pyodide.asm.data.js -o build/pyodide.asm.data.js
 
 
@@ -136,7 +136,7 @@ build/test.data: $(CPYTHONLIB)
 	  cd $(CPYTHONLIB)/test; \
 	  find -type d -name __pycache__ -prune -exec rm -rf {} \; \
 	)
-	python2 $(FILEPACKAGER) build/test.data --preload $(CPYTHONLIB)/test@/lib/python3.6/test --js-output=build/test.js --export-name=pyodide --exclude \*.wasm.pre --exclude __pycache__
+	python $(FILEPACKAGER) build/test.data --preload $(CPYTHONLIB)/test@/lib/python3.6/test --js-output=build/test.js --export-name=pyodide --exclude \*.wasm.pre --exclude __pycache__
 	uglifyjs build/test.js -o build/test.js
 
 

tools/buildpkg.py

@@ -141,7 +141,7 @@ def package_files(buildpath, srcpath, pkg, args):
     name = pkg['package']['name']
     libdir = get_libdir(srcpath, args)
     subprocess.run([
-        'python2',
+        'python',
         Path(os.environ['EMSCRIPTEN']) / 'tools' / 'file_packager.py',
         buildpath / (name + '.data'),
         '--preload',