A Python indexing and searching system based on zope.index.
See the docs subdirectory for documentation or the online docs.
- Fix bug in query with names are None [ebrehault].
- The ‘numdocs’ return value from ‘Catalog.search’ is now a subclass of integer
with an added attribute, ‘total’, which gives the caller access to the total
size of the result set before being limited by the ‘limit’ argument.
- Fix docs rendering.
- Add “dev” and “docs” aliases to setup.cfg.
- Harmonized index name / discriminator in catalog setup with content schema
and queries used in later examples. Thanks to Douglas Cerna.
- Fixed semantics of ‘applyEq’ for the Keyword index. The ‘applyEq’ (and
‘applyNotEq’) methods now expect scalar values for the query. ‘applyAny’,
‘applyAll’ and their respective negations should be used to query multiple
- Fixed bug in query parser where names inside of ‘any’ or ‘all’ calls were
not being parsed properly.
- When using CQEs, names may now be embedded inside of a list or tuple,
allowing expressions like this: “tags in any([tag1, tag2])” where tag1 and
tag2 are names that will be resolved at query run time.
- Deprecated .search-based querying of catalog in favor of newer
query language(s) via .query. See docs for more info.
- Added a .docids() method to CatalogIndex.
- Deprecated repoze.catalog.index.path2.CatalogPathIndex2.
- Refuse to pickle instances of zodb.broken.Broken which are
returned as the result of an index attempting to call a callable
discriminator function. This prevents edge cases where instances
with out-of-sync code could too easily write Broken objects to the
database, leaving them around for the next hapless unpickler to
find. This is particularly a problem because many of our
discriminators are functions; the Broken machinery attempts to
recover the state of a broken object when it is unpickled, but it
cannot recover the state of an attempted function call.
- Fix a bug which allowed the document map to map more than one docid
onto the same address, which put the reverse and forward document
map bookeeping out of sync with each other.
- Move benchmark directory into root of distribution instead of
leaving it in package. It interfered with normal operations of the
- Deactivate “sortbench” console script.
- Remove “Development Status” Trove classifier.
- Bump version to 0.7.2.
- Disuse nose.collector as test_suite (use normal setuptools test runner).
- Remove (unused) TODO.txt.
- Disuse ez_setup.py.
- Make docs render properly in Google Chrome.
- When using DocumentMap.add with a docid argument that
references an existing docid with metadata, that metadata is now
removed. Previously it was retained.
- Minimally get docs into shape for First PyPI release; no
functionality changes from 0.7.0.
- Fixed bug in DocumentMap.add which left orphan mappings for previous
addresses when adding an existing docid with a new address.
- Added the ability to sort by text relevance. Use the name of the text
index as the sort_index in the query.
- Add metadata-related APIs to repoze.catalog.document.DocumentMap:
add_metadata, remove_metadata, get_metadata.
“Metadata” is a freeform set of key/value pairs related to a docid.
See the API documentation for more information.
- Fixed constructor inheritance issues which kept repoze.catalog
from working under Python 2.6. Note that this change involved removing
the *args, **kw arguments from index constructors: those values were
never used, but had (bogus) tests.
- N-Best ascending fieldindex sort was being chosen incorrectly when
there was no limit. Symptom: RuntimeError, 'n-best used without
- Add reindex_doc method as an alias for index_doc to both
CatalogFieldIndex and CatalogKeywordIndex (for performance,
index_doc for both indexes has special case code for reindexing).
- Speed up path2 index attribute search by using __getitem__ rather
than .get in some places.
- Override textindex reindex_doc method: calling index_doc only
instead of calling unindex_doc and then index_doc is much more
- Attributes returned to attribute checker were not correct.
- Add “attribute discriminator” and “attribute checker” support to
path2 index. If an index is created with an attribute
discriminator, when any object is indexed, the value of the
attribute will be stored in the path index. The path index will
know that that attribute belongs to a particular path. Later, when
the “attribute checker” feature of the apply or search
method is used, a user-supplied attribute checker function will be
able to filter the result set returned by the index. This is used
by the author primarily to support security-filtered searches of a
path index. It is not otherwise documented.
- Add a reindex_doc method to the catalog and to the common
shared index base class. The catalog’s reindex_doc calls each
index’s reindex_doc method when called. The common shared index
base class implementation unindexes the docid and then subsequently
indexes the document using the docid. This method can be overridden
for specific indexes to do something different on a reindex.
- repoze.catalog.indexes.path2.CatalogPathIndex2 now takes an
extra argument to its search method named include_path. If this
is true, the docid set returned will include the docid for the path
specified by the path query parameter. The apply method of the
index allows for the specification of the include_path as a
dictionary member in an apply call which specifies the query as
- Give path2.CatalogPathIndex2 index a better reindex_doc
method than the default.
- The CatalogKeywordIndex’s apply method mutated the query passed
in if it was a dict. To fix, we override the apply method from
the zope.index implementation.
- Added a Range class importable as repoze.catalog.Range. The
Range class should be used to represent a range query to a
CatalogFieldIndex. The old-style of passing a 2-tuple to represent
a range is still supported, but will be eventually removed in favor
of requring a Range object to represent a Range query. A Range
object can be instantiated ala “Range(start, end)”.
- It is now possible to pass a sequence of items to the
CatalogFieldIndex apply method. When a sequence of terms that
is passed in is not a tuple with two items in it (the previous API
representing a range, which is deprecated), it will be considered a
query for multiple terms. The docids returned for each term will be
unioned together to form the result.
- It is now possible to pass a dictionary to the CatalogFieldIndex
apply method. When a dictionary is passed, the member of the
dictionary named query is treated as the query. It may be a
single term, a sequence of terms, or a Range. An additional
dictionary member named operator may also be specified: when
this is specified, it must be one of or or and (the default
is or). If the query specifies multiple terms, and the operator
is or, the results will be unioned; if the query specifies
multiple terms and the operator is and, the results will be
- A newer path index implementation importable as
repoze.catalog.path2.CatalogPathIndex2 has been added as another
index type. The path2 index type is an improvement inasmuch as it
actually uses a graph to represent structure instead of the “levels”
scheme pioneered within Zope2 (and used by
repoze.catalog.path.CatalogPathIndex). By eye, the “levels”
scheme looks like it can return the wrong results for any given path
for a sufficiently dense tree.
- Catalog indexes must now supply an apply_intersect method; it
receives a query and a set of docids (the result intersection “so
far”). It should have the same sort of return value as the
apply method. Indexes which inherit from
common.CatalogIndex will inherit a default implementation.
- It is now possible to specify index query/merge order within a
catalog query. See Index Query/Merge Order in the docs.
- Better detection of when to use fwdscan on ascending sorts in field
- Better detection of when to use nbest vs. timsort on ascending sorts
in field indexes.
- Allow a new catalog search method keyword: sort_type. For
ascending sorts, this can be one of nbest, fwscan, or
timsort. For descending sorts, only nbest and timsort
are supported. This argument allows fine-grained control of what
algorithm should be chosen to perform sorting within FieldIndex
- Better automatic detection of which sort algorithm to use (when it’s
not supplied via sort_type) based on empirical testing.
- Depend on zope.index 3.5.0 rather than any earlier version
(repoze.catalog fixes migrated upstream in zope.index 3.5.0).
- Add ‘sortbench’ script to test various field index sort strategies
(requires ‘benchmark’ extra to create charts).
- Prevent the potential for a zero division error when attempting to
sort an empty set of results.
- Optimize the choice of fieldindex sort strategy.
- Speed up keyword index merges slightly.
- Fix a bug in the return value of the catalog: it would try to return
the minimum of the number of docs or the limit event if there was no
- Sean Upton pointed out that the document map code artificially
limited the number of documents to half the number that it could
- Add path index.
- Speed up keyword index ‘and’ (intersection) queries nominally by
sorting intersected sets from smallest-to-largest first.
- Benchmarking suite provided by Chris Rossi.
- Add a “facet” index
(repoze.catalog.indexes.facet.CatalogFacetIndex). This index is
much like a keyword index, but unlike a keyword index it contains a
facet list (a sequence of known colon-separated values) and accepts
values that are sequences of colon-separated terms. Each term is
split on its colons, forming a sequence of categories, then each
concatenation of the categories is indexed. For example, if you
indexed a document as ['style:gucci:handbag'], and the facet
list contained 'style', 'style:gucci' and
'style:gucci:handbag', the document would be indexed three
times: as style, as style:gucci and as
style:gucci:handbag. Querying a facet index returns a set of
document ids that match the facets passed in. A facet index also
has a counts method which provided a set of document ids,
returns a dictionary containing “further constraint information” for
use in a narrowing UI. This count implementation is not meant for
very large-scale sites; it is naive.
- Speed up keyword index ‘or’ (union) queries by using a single
IFBTree.multiunion instead of multiple calls to IFBTree.union; this
is most helpful for speeding up ‘or’ queries where there are lots of
terms in the query sequence.
- Add repoze.catalog.document.DocumentMap class, which provides a
mechanism to map “addresses” (paths) to document ids.
- Add API documentation for catalog and document map.
- Rename searchResults method to search.
- Removed updateIndex and updateIndexes methods of catalog.
- All index implementations moved into repoze.catalog.indexes.
- All interfaces moved to repoze.catalog.interfaces.
- Provide sort_index capability.
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