Class PythonInterpreter

java.lang.Object
org.python.util.PythonInterpreter
Direct Known Subclasses:
InteractiveInterpreter

public class PythonInterpreter extends Object
The PythonInterpreter class is a standard wrapper for a Jython interpreter for use embedding in a Java application.
Version:
1.0, 02/23/97
Author:
Jim Hugunin
  • Constructor Details

    • PythonInterpreter

      public PythonInterpreter()
      Create a new Interpreter with an empty dictionary
    • PythonInterpreter

      public PythonInterpreter(PyObject dict)
      Create a new interpreter with the given dictionary to use as its namespace
      Parameters:
      dict - the dictionary to use
    • PythonInterpreter

      public PythonInterpreter(PyObject dict, PySystemState systemState)
  • Method Details

    • initialize

      public static void initialize(Properties preProperties, Properties postProperties, String[] argv)
      Initializes the jython runtime. This should only be called once, and should be called before any other python objects are created (including a PythonInterpreter).
      Parameters:
      preProperties - A set of properties. Typically System.getProperties() is used.
      postProperties - An other set of properties. Values like python.home, python.path and all other values from the registry files can be added to this property set. PostProperties will override system properties and registry properties.
      argv - Command line argument. These values will assigned to sys.argv.
    • setOut

      public void setOut(PyObject outStream)
      Set the Python object to use for the standard output stream
      Parameters:
      outStream - Python file-like object to use as output stream
    • setOut

      public void setOut(Writer outStream)
      Set a java.io.Writer to use for the standard output stream
      Parameters:
      outStream - Writer to use as output stream
    • setOut

      public void setOut(OutputStream outStream)
      Set a java.io.OutputStream to use for the standard output stream
      Parameters:
      outStream - OutputStream to use as output stream
    • setErr

      public void setErr(PyObject outStream)
    • setErr

      public void setErr(Writer outStream)
    • setErr

      public void setErr(OutputStream outStream)
    • eval

      public PyObject eval(String s)
      Evaluate a string as Python source and return the result
      Parameters:
      s - the string to evaluate
    • exec

      public void exec(String s)
      Execute a string of Python source in the local namespace
      Parameters:
      s - the string to execute
    • exec

      public void exec(PyObject code)
      Execute a Python code object in the local namespace
      Parameters:
      code - the code object to execute
    • execfile

      public void execfile(String s)
      Execute a file of Python source in the local namespace
      Parameters:
      s - the name of the file to execute
    • execfile

      public void execfile(InputStream s)
    • execfile

      public void execfile(InputStream s, String name)
    • getLocals

      public PyObject getLocals()
    • setLocals

      public void setLocals(PyObject d)
    • set

      public void set(String name, Object value)
      Set a variable in the local namespace
      Parameters:
      name - the name of the variable
      value - the value to set the variable to. Will be automatically converted to an appropriate Python object.
    • set

      public void set(String name, PyObject value)
      Set a variable in the local namespace
      Parameters:
      name - the name of the variable
      value - the value to set the variable to
    • get

      public PyObject get(String name)
      Get the value of a variable in the local namespace
      Parameters:
      name - the name of the variable
    • get

      public Object get(String name, Class javaclass)
      Get the value of a variable in the local namespace Value will be returned as an instance of the given Java class. interp.get("foo", Object.class) will return the most appropriate generic Java object.
      Parameters:
      name - the name of the variable
      javaclass - the class of object to return
    • cleanup

      public void cleanup()