A directory with a DBM interface.
This class presents a hash-like interface to a directory of small, flat files. It can only use strings as keys or values.
Method | __init__ |
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Instance Variable | dname |
Undocumented |
Method | __len__ |
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Method | __setitem__ |
dirdbm[k] = v Create or modify a textfile in this directory |
Method | __getitem__ |
dirdbm[k] Get the contents of a file in this directory as a string. |
Method | __delitem__ |
del dirdbm[foo] Delete a file in this directory. |
Method | keys |
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Method | values |
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Method | items |
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Method | has_key |
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Method | setdefault |
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Method | get |
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Method | __contains__ |
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Method | update |
Add all the key/value pairs in dict to this dirdbm. Any conflicting keys will be overwritten with the values from dict . |
Method | copyTo |
Copy the contents of this dirdbm to the dirdbm at path . |
Method | clear |
Delete all key/value pairs in this dirdbm. |
Method | close |
Close this dbm: no-op, for dbm-style interface compliance. |
Method | getModificationTime |
Returns modification time of an entry. |
Instance Variable | _dnamePath |
Undocumented |
Method | _encode |
Encode a key so it can be used as a filename. |
Method | _decode |
Decode a filename to get the key. |
Method | _readFile |
Read in the contents of a file. |
Method | _writeFile |
Write data to a file. |
Read in the contents of a file.
Override in subclasses to e.g. provide transparently encrypted dirdbm.
twisted.persisted.dirdbm.Shelf
dirdbm[k] = v
Create or modify a textfile in this directory
Parameters | k | key to set (type: bytes) |
v | value to associate with k (type: bytes) |
twisted.persisted.dirdbm.Shelf
dirdbm[k]
Get the contents of a file in this directory as a string.
Parameters | k | key to lookup (type: bytes) |
Returns | The value associated with k | |
Raises | KeyError | Raised when there is no such key |
del dirdbm[foo]
Delete a file in this directory.
Parameters | k | key to delete (type: bytes) |
Raises | KeyError | Raised when there is no such key |
Parameters | key | The key to test (type: bytes) |
Returns | A true value if this dirdbm has the specified key, a false value otherwise. |
Parameters | key | The key to lookup (type: bytes) |
value | The value to associate with key if key is not already associated with a value. |
Parameters | key | The key to lookup (type: bytes) |
default | The value to return if the given key does not exist | |
Returns | The value associated with key or default if not DirDBM.has_key(key) |
Copy the contents of this dirdbm to the dirdbm at path
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Parameters | path | The path of the dirdbm to copy to. If a dirdbm exists at the destination path, it is cleared first. (type: str ) |
Returns | The dirdbm this dirdbm was copied to. (type: DirDBM ) |