Java invoke python script

gistfile1.txt

# Java invoke Python script
## Python script
```
python test.py 
hello world

# with parameter
python test.py  foo bar
hello world
['foo', 'bar']

```
## Java code
```
        ProcessBuilder builder = new ProcessBuilder();
        //builder.command("python", "test.py");
        builder.command("python", "test.py","foo","bar");
        Process process = builder.start();
        process.waitFor();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
        bufferedReader.lines().forEach(System.out::println);
```

## Warning
if python script has any error, java just cannot read anything and nothing output, it cannot know what's wrong, e.g

```
python test.py         
Traceback (most recent call last):
  File "test.py", line 5, in <module>
    print(1/0)
ZeroDivisionError: integer division or modulo by zero

python non_exist.py 
/usr/local/Cellar/python/2.7.11/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python: can't open file 'non_exist.py': [Errno 2] No such file or directory

```