Support Python3

MANIFEST.in

@@ -1,4 +1,5 @@
 include build.sh
+include python/bin/python
 include CMakeLists.txt
 include LICENSE
 include README.md

build.sh

@@ -3,7 +3,7 @@
 V8EVAL_ROOT=`cd $(dirname $0) && pwd`
 
 PLATFORM=`uname`
-if [ $PLATFORM = "Linux" ] ; then
+if [ $PLATFORM = "Linux" ]; then
   NUM_CPU_CORES=`cat /proc/cpuinfo | grep cores | grep -o '[0-9]\+' | awk '{total=total+$1}; END{print total}'`
 
   export CC=$V8EVAL_ROOT/v8/third_party/llvm-build/Release+Asserts/bin/clang
@@ -50,11 +50,24 @@ install_v8() {
     return 0
   fi
 
+  PY_VER=`python -c 'import sys; print(sys.version_info[0])'`
+  if [ $PY_VER = 3 ]; then
+    OLD_PATH=$PATH
+    export PATH=$V8EVAL_ROOT/python/bin:$PATH
+  fi
+
   cd $V8EVAL_ROOT
   fetch v8
   cd v8
   git checkout 5.2.163
+  if [ $PY_VER = 3 ]; then
+    sed -i -e 's/python -c/python2 -c/' Makefile
+  fi
   CFLAGS="-fPIC -Wno-unknown-warning-option" CXXFLAGS="-fPIC -Wno-unknown-warning-option" make x64.release -j$NUM_CPU_CORES V=1
+
+  if [ $PY_VER = 3 ]; then
+    export PATH=$OLD_PATH
+  fi
 }
 
 install_libuv() {

python/_v8eval.py

@@ -1,5 +1,12 @@
 # the following is appended to swig-generated file including _PythonV8
-import json
+import json, sys
+
+
+PY3 = sys.version_info[0] == 3
+if PY3:
+    string_type = str
+else:
+    string_type = basestring
 
 
 class V8Error(Exception):
@@ -35,7 +42,7 @@ def eval(self, src):
 
             V8Error: If some JavaScript exception happens.
         """
-        if not isinstance(src, basestring):
+        if not isinstance(src, string_type):
             raise TypeError('source code not string')
 
         res = self._v8.eval(src)
@@ -64,7 +71,7 @@ def call(self, func, args):
 
             V8Error: If some JavaScript exception happens.
         """
-        if not isinstance(func, basestring):
+        if not isinstance(func, string_type):
             raise TypeError('function name not string')
         if not isinstance(args, list):
             raise TypeError('arguments not list')

python/bin/python

@@ -0,0 +1,2 @@
+#!/bin/sh
+exec python2 $@

python/example/js_add.py

@@ -5,4 +5,4 @@ def add(x, y):
     v8.eval('var add = (x, y) => x + y;')
     return v8.call('add', [x, y])
 
-print add(1, 2)
+print(add(1, 2))

setup.py

@@ -84,6 +84,7 @@
       package_dir={'': 'python/v8eval'},
       classifiers=["License :: OSI Approved :: MIT License",
                    "Programming Language :: Python :: 2.7",
+                   "Programming Language :: Python :: 3",
                    "Programming Language :: Python :: 3.5",
                    "Programming Language :: Python :: Implementation :: CPython",
                    "Operating System :: POSIX :: Linux",