Package commons :: Module seqs :: Class PersistentSeq

Class PersistentSeq

           object --+    
                    |    
PersistentConsumedSeq --+
                        |
                       PersistentSeq

I generate [0, 1, ...], like count, but I can also save my state to disk. I save my state immediately to disk on each call to next.

Instance Methods

[hide private]

__init__(self, path)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

source code

int

next(self)
Generates the next number in the sequence and immediately commits it.

source code

Inherited from PersistentConsumedSeq: close, commit

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Instance Variables

[hide private]

Inherited from PersistentConsumedSeq: seqno

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, path)
(Constructor)

source code

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

Parameters:

path (str) - File to save my state in. I keep this file open.

Overrides: object.__init__

next(self)

source code

Generates the next number in the sequence and immediately commits it.

Returns: int

The next number in the sequence.

Raises:

ClosedError - If I was previously closed.

Overrides: PersistentConsumedSeq.next

Class PersistentSeq

__init__(self, path) (Constructor)

next(self)

init(self, path)
(Constructor)