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- __builtin__.dict(__builtin__.object)
-
- Xlator
- maxdict
- __builtin__.list(__builtin__.object)
-
- silent_list
- Bunch
- CallbackRegistry
- MemoryMonitor
- Null
- RingBuffer
- Sorter
- Stack
class Bunch |
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Often we want to just collect a bunch of stuff together, naming each
item of the bunch; a dictionary's OK for that, but a small do- nothing
class is even handier, and prettier to use. Whenever you want to
group a few variables:
>>> point = Bunch(datum=2, squared=4, coord=12)
>>> point.datum
By: Alex Martelli
From: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52308
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Methods defined here:
- __init__(self, **kwds)
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class CallbackRegistry |
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Handle registering and disconnecting for a set of signals and
callbacks
signals = 'eat', 'drink', 'be merry'
def oneat(x):
print 'eat', x
def ondrink(x):
print 'drink', x
callbacks = CallbackRegistry(signals)
ideat = callbacks.connect('eat', oneat)
iddrink = callbacks.connect('drink', ondrink)
#tmp = callbacks.connect('drunk', ondrink) # this will raise a ValueError
callbacks.process('drink', 123) # will call oneat
callbacks.process('eat', 456) # will call ondrink
callbacks.process('be merry', 456) # nothing will be called
callbacks.disconnect(ideat) # disconnect oneat
callbacks.process('eat', 456) # nothing will be called
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Methods defined here:
- __init__(self, signals)
- signals is a sequence of valid signals
- connect(self, s, func)
- register func to be called when a signal s is generated
func will be called with args and kwargs
- disconnect(self, cid)
- disconnect the callback registered with callback id cid
- process(self, s, *args, **kwargs)
- process signal s. All of the functions registered to receive
callbacks on s will be called with *args and **kwargs
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class RingBuffer |
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class that implements a not-yet-full buffer
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Methods defined here:
- __get_item__(self, i)
- __init__(self, size_max)
- append(self, x)
- append an element at the end of the buffer
- get(self)
- Return a list of elements from the oldest to the newest.
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class Sorter |
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Sort by attribute or item
Example usage:
sort = Sorter()
list = [(1, 2), (4, 8), (0, 3)]
dict = [{'a': 3, 'b': 4}, {'a': 5, 'b': 2}, {'a': 0, 'b': 0},
{'a': 9, 'b': 9}]
sort(list) # default sort
sort(list, 1) # sort by index 1
sort(dict, 'a') # sort a list of dicts by key 'a'
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Methods defined here:
- __call__ = byItem(self, data, itemindex=None, inplace=1)
- byAttribute(self, data, attributename, inplace=1)
- byItem(self, data, itemindex=None, inplace=1)
- sort = byItem(self, data, itemindex=None, inplace=1)
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class Stack |
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Implement a stack where elements can be pushed on and you can move
back and forth. But no pop. Should mimic home / back / forward
in a browser
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Methods defined here:
- __call__(self)
- return the current element, or None
- __init__(self, default=None)
- back(self)
- move the position back and return the current element
- bubble(self, o)
- raise o to the top of the stack and return o. o must be in
the stack
- clear(self)
- empty the stack
- empty(self)
- forward(self)
- move the position forward and return the current element
- home(self)
- push the first element onto the top of the stack
- push(self, o)
- push object onto stack at current position - all elements
occurring later than the current position are discarded
- remove(self, o)
- remove element o from the stack
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class Xlator(__builtin__.dict) |
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All-in-one multiple-string-substitution class
Example usage:
text = "Larry Wall is the creator of Perl"
adict = {
"Larry Wall" : "Guido van Rossum",
"creator" : "Benevolent Dictator for Life",
"Perl" : "Python",
}
print multiple_replace(adict, text)
xlat = Xlator(adict)
print xlat.xlat(text)
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- Method resolution order:
- Xlator
- __builtin__.dict
- __builtin__.object
Methods defined here:
- __call__(self, match)
- Handler invoked for each regex match
- xlat(self, text)
- Translate text, returns the modified text.
Data descriptors defined here:
- __dict__
- dictionary for instance variables (if defined)
- __weakref__
- list of weak references to the object (if defined)
Methods inherited from __builtin__.dict:
- __cmp__(...)
- x.__cmp__(y) <==> cmp(x,y)
- __contains__(...)
- D.__contains__(k) -> True if D has a key k, else False
- __delitem__(...)
- x.__delitem__(y) <==> del x[y]
- __eq__(...)
- x.__eq__(y) <==> x==y
- __ge__(...)
- x.__ge__(y) <==> x>=y
- __getattribute__(...)
- x.__getattribute__('name') <==> x.name
- __getitem__(...)
- x.__getitem__(y) <==> x[y]
- __gt__(...)
- x.__gt__(y) <==> x>y
- __hash__(...)
- x.__hash__() <==> hash(x)
- __init__(...)
- x.__init__(...) initializes x; see x.__class__.__doc__ for signature
- __iter__(...)
- x.__iter__() <==> iter(x)
- __le__(...)
- x.__le__(y) <==> x<=y
- __len__(...)
- x.__len__() <==> len(x)
- __lt__(...)
- x.__lt__(y) <==> x<y
- __ne__(...)
- x.__ne__(y) <==> x!=y
- __repr__(...)
- x.__repr__() <==> repr(x)
- __setitem__(...)
- x.__setitem__(i, y) <==> x[i]=y
- clear(...)
- D.clear() -> None. Remove all items from D.
- copy(...)
- D.copy() -> a shallow copy of D
- get(...)
- D.get(k[,d]) -> D[k] if k in D, else d. d defaults to None.
- has_key(...)
- D.has_key(k) -> True if D has a key k, else False
- items(...)
- D.items() -> list of D's (key, value) pairs, as 2-tuples
- iteritems(...)
- D.iteritems() -> an iterator over the (key, value) items of D
- iterkeys(...)
- D.iterkeys() -> an iterator over the keys of D
- itervalues(...)
- D.itervalues() -> an iterator over the values of D
- keys(...)
- D.keys() -> list of D's keys
- pop(...)
- D.pop(k[,d]) -> v, remove specified key and return the corresponding value
If key is not found, d is returned if given, otherwise KeyError is raised
- popitem(...)
- D.popitem() -> (k, v), remove and return some (key, value) pair as a
2-tuple; but raise KeyError if D is empty
- setdefault(...)
- D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in D
- update(...)
- D.update(E, **F) -> None. Update D from E and F: for k in E: D[k] = E[k]
(if E has keys else: for (k, v) in E: D[k] = v) then: for k in F: D[k] = F[k]
- values(...)
- D.values() -> list of D's values
Data and other attributes inherited from __builtin__.dict:
- __new__ = <built-in method __new__ of type object at 0x8145420>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
- fromkeys = <built-in method fromkeys of type object at 0x84383f4>
- dict.fromkeys(S[,v]) -> New dict with keys from S and values equal to v.
v defaults to None.
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class maxdict(__builtin__.dict) |
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A dictionary with a maximum size; this doesn't override all the
relevant methods to contrain size, just setitem, so use with
caution
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- Method resolution order:
- maxdict
- __builtin__.dict
- __builtin__.object
Methods defined here:
- __init__(self, maxsize)
- __setitem__(self, k, v)
Data descriptors defined here:
- __dict__
- dictionary for instance variables (if defined)
- __weakref__
- list of weak references to the object (if defined)
Methods inherited from __builtin__.dict:
- __cmp__(...)
- x.__cmp__(y) <==> cmp(x,y)
- __contains__(...)
- D.__contains__(k) -> True if D has a key k, else False
- __delitem__(...)
- x.__delitem__(y) <==> del x[y]
- __eq__(...)
- x.__eq__(y) <==> x==y
- __ge__(...)
- x.__ge__(y) <==> x>=y
- __getattribute__(...)
- x.__getattribute__('name') <==> x.name
- __getitem__(...)
- x.__getitem__(y) <==> x[y]
- __gt__(...)
- x.__gt__(y) <==> x>y
- __hash__(...)
- x.__hash__() <==> hash(x)
- __iter__(...)
- x.__iter__() <==> iter(x)
- __le__(...)
- x.__le__(y) <==> x<=y
- __len__(...)
- x.__len__() <==> len(x)
- __lt__(...)
- x.__lt__(y) <==> x<y
- __ne__(...)
- x.__ne__(y) <==> x!=y
- __repr__(...)
- x.__repr__() <==> repr(x)
- clear(...)
- D.clear() -> None. Remove all items from D.
- copy(...)
- D.copy() -> a shallow copy of D
- get(...)
- D.get(k[,d]) -> D[k] if k in D, else d. d defaults to None.
- has_key(...)
- D.has_key(k) -> True if D has a key k, else False
- items(...)
- D.items() -> list of D's (key, value) pairs, as 2-tuples
- iteritems(...)
- D.iteritems() -> an iterator over the (key, value) items of D
- iterkeys(...)
- D.iterkeys() -> an iterator over the keys of D
- itervalues(...)
- D.itervalues() -> an iterator over the values of D
- keys(...)
- D.keys() -> list of D's keys
- pop(...)
- D.pop(k[,d]) -> v, remove specified key and return the corresponding value
If key is not found, d is returned if given, otherwise KeyError is raised
- popitem(...)
- D.popitem() -> (k, v), remove and return some (key, value) pair as a
2-tuple; but raise KeyError if D is empty
- setdefault(...)
- D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in D
- update(...)
- D.update(E, **F) -> None. Update D from E and F: for k in E: D[k] = E[k]
(if E has keys else: for (k, v) in E: D[k] = v) then: for k in F: D[k] = F[k]
- values(...)
- D.values() -> list of D's values
Data and other attributes inherited from __builtin__.dict:
- __new__ = <built-in method __new__ of type object at 0x8145420>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
- fromkeys = <built-in method fromkeys of type object at 0x84366c4>
- dict.fromkeys(S[,v]) -> New dict with keys from S and values equal to v.
v defaults to None.
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class silent_list(__builtin__.list) |
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override repr when returning a list of matplotlib artists to
prevent long, meaningless output. This is meant to be used for a
homogeneous list of a give type
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- Method resolution order:
- silent_list
- __builtin__.list
- __builtin__.object
Methods defined here:
- __init__(self, type, seq=None)
- __repr__(self)
- __str__(self)
Data descriptors defined here:
- __dict__
- dictionary for instance variables (if defined)
- __weakref__
- list of weak references to the object (if defined)
Methods inherited from __builtin__.list:
- __add__(...)
- x.__add__(y) <==> x+y
- __contains__(...)
- x.__contains__(y) <==> y in x
- __delitem__(...)
- x.__delitem__(y) <==> del x[y]
- __delslice__(...)
- x.__delslice__(i, j) <==> del x[i:j]
Use of negative indices is not supported.
- __eq__(...)
- x.__eq__(y) <==> x==y
- __ge__(...)
- x.__ge__(y) <==> x>=y
- __getattribute__(...)
- x.__getattribute__('name') <==> x.name
- __getitem__(...)
- x.__getitem__(y) <==> x[y]
- __getslice__(...)
- x.__getslice__(i, j) <==> x[i:j]
Use of negative indices is not supported.
- __gt__(...)
- x.__gt__(y) <==> x>y
- __hash__(...)
- x.__hash__() <==> hash(x)
- __iadd__(...)
- x.__iadd__(y) <==> x+=y
- __imul__(...)
- x.__imul__(y) <==> x*=y
- __iter__(...)
- x.__iter__() <==> iter(x)
- __le__(...)
- x.__le__(y) <==> x<=y
- __len__(...)
- x.__len__() <==> len(x)
- __lt__(...)
- x.__lt__(y) <==> x<y
- __mul__(...)
- x.__mul__(n) <==> x*n
- __ne__(...)
- x.__ne__(y) <==> x!=y
- __reversed__(...)
- L.__reversed__() -- return a reverse iterator over the list
- __rmul__(...)
- x.__rmul__(n) <==> n*x
- __setitem__(...)
- x.__setitem__(i, y) <==> x[i]=y
- __setslice__(...)
- x.__setslice__(i, j, y) <==> x[i:j]=y
Use of negative indices is not supported.
- append(...)
- L.append(object) -- append object to end
- count(...)
- L.count(value) -> integer -- return number of occurrences of value
- extend(...)
- L.extend(iterable) -- extend list by appending elements from the iterable
- index(...)
- L.index(value, [start, [stop]]) -> integer -- return first index of value
- insert(...)
- L.insert(index, object) -- insert object before index
- pop(...)
- L.pop([index]) -> item -- remove and return item at index (default last)
- remove(...)
- L.remove(value) -- remove first occurrence of value
- reverse(...)
- L.reverse() -- reverse *IN PLACE*
- sort(...)
- L.sort(cmp=None, key=None, reverse=False) -- stable sort *IN PLACE*;
cmp(x, y) -> -1, 0, 1
Data and other attributes inherited from __builtin__.list:
- __new__ = <built-in method __new__ of type object at 0x8144360>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
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