错误:Could not link required node_modules
解决:在Python包安装路径下的js2py/node_import.py的17行有以下代码
assert subprocess.call(
        'cd %s;npm install babel-core babel-cli babel-preset-es2015 babel-polyfill babelify browserify browserify-shim'
        % repr(DIRNAME),
        shell=True,
        cwd=DIRNAME) == 0, 'Could not link required node_modules'

修改为

assert subprocess.call(
        'npm install babel-core babel-cli babel-preset-es2015 babel-polyfill babelify browserify browserify-shim',
        shell=True,
        cwd=DIRNAME) == 0, 'Could not link required node_modules'