python.iterators Namespace Reference

Classes
class	TestIterators

Functions
def	_findIterators (obj)
def	addIterator (obj)
def	emptyIterator (self)
def	iteratorForBeginEnd (self)
def	iteratorForSizedObjects (self)

Function Documentation

def python.iterators._findIterators (   obj )

private

Definition at line 47 of file iterators.py.

References python.rootplot.root2matplotlib.replace().

Referenced by python.iterators.addIterator().

def _findIterators(obj):
    objDict = obj.__dict__
    _beginNames = [name for name in objDict.keys() if "begin" in 
name.lower()]
    _endNames = [name for name in objDict.keys() if "end" in name.lower()]
    if len(_beginNames)==1 and len(_endNames)== 1 and _beginNames[0].lower().replace("begin","") == _endNames[0].lower().replace("end",""):  
        return objDict[_beginNames[0]], objDict[_endNames[0]]
    else:
        return False
        
        
        

def python.iterators.addIterator

(

obj

)

function for adding iterators to objects

Definition at line 7 of file iterators.py.

References python.iterators._findIterators().

Referenced by python.iterators.TestIterators.testAddIterator().

def addIterator(obj):
    """function for adding iterators to objects""" 
    if not hasattr(obj, "__iter__"):
        if hasattr(obj, "size"):
            obj.__iter__ = iteratorForSizedObjects
        else:
            try:
              begin, end = _findIterators(obj)
            except:
              return obj  
            if not hasattr(obj, "_begin") and hasattr(obj, "_end"):
                obj._begin = begin
                obj._end = end
                obj.__iter__ = iteratorForBeginEnd
        #else:
        #    obj.__iter__ = EmptyIterator
    return obj

def python.iterators.emptyIterator

(

self

)

empty iterator

Definition at line 41 of file iterators.py.

def emptyIterator(self):
    """empty iterator"""
    raise cmserror("Automatic iterator search failed for %s. Either it is no iterable or it has multiple iterator possibilites. Please use loop(begin, end) instead." %obj )


# automatic detection of iterators.      

def python.iterators.iteratorForBeginEnd

(

self

)

dynamically added iterator

Definition at line 33 of file iterators.py.

def iteratorForBeginEnd(self):
    """dynamically added iterator"""
    it = self._begin
    while (it != self.end):
        yield begin.__deref__()  #*b
        begin.__preinc__()       #++b

def python.iterators.iteratorForSizedObjects

(

self

)

dynamically added iterator

Definition at line 26 of file iterators.py.

def iteratorForSizedObjects(self):
    """dynamically added iterator"""
    entries = container.size()
    for entry in range(entries):
        yield obj[entry]