old_contents: import pava
  
  
  # Tell pava where it can find Java user-defined classes
  pava.set_classpath(['c:/Users/laffr/PycharmProjects/pava/pava'])
  
  try:
      import java
      class Out(object):
          def println(self, s):
              print s
      java.lang.System.out = Out()
  except ImportError:
      pass
  
  
  # Load a Java class and call a static method on it from Python
  
  import classfiles
  classfiles.HelloWorld.main()
  
  
new_contents: import os
  import pava
  
  
  # Tell pava where it can find Java user-defined classes
  print '1. Loading Java...'
  pava.set_classpath([os.path.dirname(__file__)])
  
  try:
      import java
      class Out(object):
          def println(self, s):
              print s
      java.lang.System.out = Out()
  except ImportError:
      pass
  
  #
  # Load the "HelloWorld" Java class and call the static "main" method on it directly from Python
  #
  # HelloWorld.class gets compiled to Python bytecodes as follows:
  #
  # Python Bytecodes generated by Pava        Original Java bytecodes in HelloWorld.class
  # ----------------------------------------------------------------------------------------------------------------------
  #  0 LOAD_GLOBAL    0 java            ### 0 getstatic ('java/lang/System', 'Ljava/io/PrintStream;', 'out')
  #  3 LOAD_ATTR      1 lang
  #  6 LOAD_ATTR      2 System
  #  9 LOAD_ATTR      3 out
  # 12 LOAD_ATTR      4 println
  # 15 LOAD_CONST     1 u'Hello World!' ### 3 ldc (u'Hello World!',)
  # 18 CALL_FUNCTION  1                 ### 5 invokevirtual ('java/io/PrintStream', 'println', '(Ljava/lang/String;)V', 1)
  # 21 POP_TOP
  # 22 LOAD_CONST    2 0                ### 8 return ()
  # 25 RETURN_VALUE
  # ---------------------------------------------------------------------------------------------------------------------
  #
  
  print '2. Import the Python module that contains the transpiled HelloWorld:'
  import classfiles
  
  print '3. Call HelloWorld.main:'
  classfiles.HelloWorld.main()
  
  print '4. Done.'
  
subject: Make the classpath relative, not absolute and add some steps.