class_docstr: Replaces expressions by iterators when possible.
  
  >>> import gast as ast
  >>> from pythran import passmanager, backend
  >>> node = ast.parse('''
  ... def foo(l):
  ...     return builtins.sum(l)
  ... def bar(n):
  ...     return foo(builtins.list(n))
  ... ''')
  >>> pm = passmanager.PassManager("test")
  >>> _, node = pm.apply(IterTransformation, node)
  >>> print(pm.dump(backend.Python, node))
  def foo(l):
      return builtins.sum(l)
  def bar(n):
      return foo(n)
docstr: Gather required information.
docstr_tok: ["Gather","required","information","."]
code: def __init__(self):
      """Gather required information."""
      Transformation.__init__(self, PotentialIterator, Aliases)
  
file_path: pythran/pythran/optimizations/iter_transformation.py
imports: from pythran.analyses import PotentialIterator, Aliases
  from pythran.passmanager import Transformation
  from pythran.utils import path_to_attr, path_to_node
label_desc: Use image node_id 1 to create a new IterTransformation object from inherited base classes: Transformation with example: obj = IterTransformation()