Clean up Vocab constructor (#12290)

* Clean up Vocab constructor

* Change effective type of `strings` from `Iterable[str]` to `Optional[StringStore]`
  * Don't automatically add strings to vocab
* Change default values to `None`
* Remove `**deprecated_kwargs`

* Format

spacy/strings.pyi

@@ -2,7 +2,7 @@ from typing import List, Optional, Iterable, Iterator, Union, Any, Tuple, overlo
 from pathlib import Path
 
 class StringStore:
-    def __init__(self, strings: Optional[Iterable[str]]) -> None: ...
+    def __init__(self, strings: Optional[Iterable[str]] = None) -> None: ...
     @overload
     def __getitem__(self, string_or_hash: str) -> int: ...
     @overload

spacy/tests/pipeline/test_pipe_methods.py

@@ -9,6 +9,7 @@ from spacy.lang.en import English
 from spacy.lang.en.syntax_iterators import noun_chunks
 from spacy.language import Language
 from spacy.pipeline import TrainablePipe
+from spacy.strings import StringStore
 from spacy.tokens import Doc
 from spacy.training import Example
 from spacy.util import SimpleFrozenList, get_arg_names, make_tempdir
@@ -131,7 +132,7 @@ def test_issue5458():
     # Test that the noun chuncker does not generate overlapping spans
     # fmt: off
     words = ["In", "an", "era", "where", "markets", "have", "brought", "prosperity", "and", "empowerment", "."]
-    vocab = Vocab(strings=words)
+    vocab = Vocab(strings=StringStore(words))
     deps = ["ROOT", "det", "pobj", "advmod", "nsubj", "aux", "relcl", "dobj", "cc", "conj", "punct"]
     pos = ["ADP", "DET", "NOUN", "ADV", "NOUN", "AUX", "VERB", "NOUN", "CCONJ", "NOUN", "PUNCT"]
     heads = [0, 2, 0, 9, 6, 6, 2, 6, 7, 7, 0]

spacy/tests/serialize/test_serialize_vocab_strings.py

@@ -13,8 +13,11 @@ from spacy.vocab import Vocab
 
 from ..util import make_tempdir
 
-test_strings = [([], []), (["rats", "are", "cute"], ["i", "like", "rats"])]
+test_strings = [
-test_strings_attrs = [(["rats", "are", "cute"], "Hello")]
+    (StringStore(), StringStore()),
+    (StringStore(["rats", "are", "cute"]), StringStore(["i", "like", "rats"])),
+]
+test_strings_attrs = [(StringStore(["rats", "are", "cute"]), "Hello")]
 
 
 @pytest.mark.issue(599)
@@ -81,7 +84,7 @@ def test_serialize_vocab_roundtrip_bytes(strings1, strings2):
     vocab2 = Vocab(strings=strings2)
     vocab1_b = vocab1.to_bytes()
     vocab2_b = vocab2.to_bytes()
-    if strings1 == strings2:
+    if strings1.to_bytes() == strings2.to_bytes():
         assert vocab1_b == vocab2_b
     else:
         assert vocab1_b != vocab2_b
@@ -117,11 +120,12 @@ def test_serialize_vocab_roundtrip_disk(strings1, strings2):
 def test_serialize_vocab_lex_attrs_bytes(strings, lex_attr):
     vocab1 = Vocab(strings=strings)
     vocab2 = Vocab()
-    vocab1[strings[0]].norm_ = lex_attr
+    s = next(iter(vocab1.strings))
-    assert vocab1[strings[0]].norm_ == lex_attr
+    vocab1[s].norm_ = lex_attr
-    assert vocab2[strings[0]].norm_ != lex_attr
+    assert vocab1[s].norm_ == lex_attr
+    assert vocab2[s].norm_ != lex_attr
     vocab2 = vocab2.from_bytes(vocab1.to_bytes())
-    assert vocab2[strings[0]].norm_ == lex_attr
+    assert vocab2[s].norm_ == lex_attr
 
 
 @pytest.mark.parametrize("strings,lex_attr", test_strings_attrs)
@@ -136,14 +140,15 @@ def test_deserialize_vocab_seen_entries(strings, lex_attr):
 def test_serialize_vocab_lex_attrs_disk(strings, lex_attr):
     vocab1 = Vocab(strings=strings)
     vocab2 = Vocab()
-    vocab1[strings[0]].norm_ = lex_attr
+    s = next(iter(vocab1.strings))
-    assert vocab1[strings[0]].norm_ == lex_attr
+    vocab1[s].norm_ = lex_attr
-    assert vocab2[strings[0]].norm_ != lex_attr
+    assert vocab1[s].norm_ == lex_attr
+    assert vocab2[s].norm_ != lex_attr
     with make_tempdir() as d:
         file_path = d / "vocab"
         vocab1.to_disk(file_path)
         vocab2 = vocab2.from_disk(file_path)
-    assert vocab2[strings[0]].norm_ == lex_attr
+    assert vocab2[s].norm_ == lex_attr
 
 
 @pytest.mark.parametrize("strings1,strings2", test_strings)

spacy/tests/vocab_vectors/test_lexeme.py

@@ -17,7 +17,7 @@ def test_issue361(en_vocab, text1, text2):
 
 @pytest.mark.issue(600)
 def test_issue600():
-    vocab = Vocab(tag_map={"NN": {"pos": "NOUN"}})
+    vocab = Vocab()
     doc = Doc(vocab, words=["hello"])
     doc[0].tag_ = "NN"
 

spacy/vocab.pyi

@@ -26,7 +26,7 @@ class Vocab:
     def __init__(
         self,
         lex_attr_getters: Optional[Dict[str, Callable[[str], Any]]] = ...,
-        strings: Optional[Union[List[str], StringStore]] = ...,
+        strings: Optional[StringStore] = ...,
         lookups: Optional[Lookups] = ...,
         oov_prob: float = ...,
         writing_system: Dict[str, Any] = ...,

spacy/vocab.pyx

@@ -49,9 +49,8 @@ cdef class Vocab:
 
     DOCS: https://spacy.io/api/vocab
     """
-    def __init__(self, lex_attr_getters=None, strings=tuple(), lookups=None,
+    def __init__(self, lex_attr_getters=None, strings=None, lookups=None,
-                 oov_prob=-20., writing_system={}, get_noun_chunks=None,
+            oov_prob=-20., writing_system=None, get_noun_chunks=None):
-                 **deprecated_kwargs):
         """Create the vocabulary.
 
         lex_attr_getters (dict): A dictionary mapping attribute IDs to
@@ -69,16 +68,19 @@ cdef class Vocab:
         self.cfg = {'oov_prob': oov_prob}
         self.mem = Pool()
         self._by_orth = PreshMap()
-        self.strings = StringStore()
         self.length = 0
-        if strings:
+        if strings is None:
-            for string in strings:
+            self.strings = StringStore()
-                _ = self[string]
+        else:
+            self.strings = strings
         self.lex_attr_getters = lex_attr_getters
         self.morphology = Morphology(self.strings)
         self.vectors = Vectors(strings=self.strings)
         self.lookups = lookups
-        self.writing_system = writing_system
+        if writing_system is None:
+            self.writing_system = {}
+        else:
+            self.writing_system = writing_system
         self.get_noun_chunks = get_noun_chunks
 
     property vectors:

website/docs/api/vocab.mdx

@@ -17,14 +17,15 @@ Create the vocabulary.
 > #### Example
 >
 > ```python
+> from spacy.strings import StringStore
 > from spacy.vocab import Vocab
-> vocab = Vocab(strings=["hello", "world"])
+> vocab = Vocab(strings=StringStore(["hello", "world"]))
 > ```
 
 | Name               | Description                                                                                                                                                             |
 | ------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `lex_attr_getters` | A dictionary mapping attribute IDs to functions to compute them. Defaults to `None`. ~~Optional[Dict[str, Callable[[str], Any]]]~~                                      |
-| `strings`          | A [`StringStore`](/api/stringstore) that maps strings to hash values, and vice versa, or a list of strings. ~~Union[List[str], StringStore]~~                           |
+| `strings`          | A [`StringStore`](/api/stringstore) that maps strings to hash values. ~~Optional[StringStore]~~                                                                         |
 | `lookups`          | A [`Lookups`](/api/lookups) that stores the `lexeme_norm` and other large lookup tables. Defaults to `None`. ~~Optional[Lookups]~~                                      |
 | `oov_prob`         | The default OOV probability. Defaults to `-20.0`. ~~float~~                                                                                                             |
 | `writing_system`   | A dictionary describing the language's writing system. Typically provided by [`Language.Defaults`](/api/language#defaults). ~~Dict[str, Any]~~                          |