Raise error if annotation dict in simple training style has unexpected keys #4074 (#4079)

* adding enhancement #4074.

* modified behavior to strictly require top level dictionary keys - issue #4074

* pass expected keys to error message and add links as expected top level key

.github/contributors/jenojp.md

@@ -0,0 +1,106 @@
+# spaCy contributor agreement
+
+This spaCy Contributor Agreement (**"SCA"**) is based on the
+[Oracle Contributor Agreement](http://www.oracle.com/technetwork/oca-405177.pdf).
+The SCA applies to any contribution that you make to any product or project
+managed by us (the **"project"**), and sets out the intellectual property rights
+you grant to us in the contributed materials. The term **"us"** shall mean
+[ExplosionAI GmbH](https://explosion.ai/legal). The term
+**"you"** shall mean the person or entity identified below.
+
+If you agree to be bound by these terms, fill in the information requested
+below and include the filled-in version with your first pull request, under the
+folder [`.github/contributors/`](/.github/contributors/). The name of the file
+should be your GitHub username, with the extension `.md`. For example, the user
+example_user would create the file `.github/contributors/example_user.md`.
+
+Read this agreement carefully before signing. These terms and conditions
+constitute a binding legal agreement.
+
+## Contributor Agreement
+
+1. The term "contribution" or "contributed materials" means any source code,
+object code, patch, tool, sample, graphic, specification, manual,
+documentation, or any other material posted or submitted by you to the project.
+
+2. With respect to any worldwide copyrights, or copyright applications and
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+
+    * you hereby assign to us joint ownership, and to the extent that such
+    assignment is or becomes invalid, ineffective or unenforceable, you hereby
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+    licensing arrangements;
+
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+
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+    against us, our licensees or transferees;
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+    multiple levels of sublicensees or other licensing arrangements.
+
+4. Except as set out above, you keep all right, title, and interest in your
+contribution. The rights that you grant to us under these terms are effective
+on the date you first submitted a contribution to us, even if your submission
+took place before the date you sign these terms.
+
+5. You covenant, represent, warrant and agree that:
+
+    * Each contribution that you submit is and shall be an original work of
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+    * to the best of your knowledge, each contribution will not violate any
+    third party's copyrights, trademarks, patents, or other intellectual
+    property rights; and
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+    * each contribution shall be in compliance with U.S. export control laws and
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+    participation in the project, including the fact that you have signed the SCA.
+
+6. This SCA is governed by the laws of the State of California and applicable
+U.S. Federal law. Any choice of law rules will not apply.
+
+7. Please place an “x” on one of the applicable statement below. Please do NOT
+mark both statements:
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+    * [X] I am signing on behalf of myself as an individual and no other person
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+    actual authority to contractually bind that entity.
+
+## Contributor Details
+
+| Field                          | Entry                |
+|------------------------------- | -------------------- |
+| Name                           | Jeno Pizarro         |
+| Company name (if applicable)   |  IBM                 |
+| Title or role (if applicable)  |  Data Scientist and Software Developer |
+| Date                           |  3 August 2019       |
+| GitHub username                |  jenojp              |
+| Website (optional)             |  https://www.linkedin.com/in/jenojp/ |

spacy/errors.py

@@ -417,6 +417,10 @@ class Errors(object):
             "component matches the model being loaded.")
     E150 = ("The language of the `nlp` object and the `vocab` should be the same, "
             "but found '{nlp}' and '{vocab}' respectively.")
+    E151 = ("Trying to call nlp.update without required annotation types. "
+            "Expected top-level keys: {expected_keys}."
+            " Got: {unexpected_keys}.")
+
 
 @add_codes
 class TempErrors(object):

spacy/language.py

@@ -445,6 +445,10 @@ class Language(object):
             if isinstance(doc, basestring_):
                 doc = self.make_doc(doc)
             if not isinstance(gold, GoldParse):
+                expected_keys = ("words", "tags", "heads", "deps", "entities", "cats", "links")
+                unexpected_keys = [k for k in gold if k not in expected_keys]
+                if unexpected_keys:
+                    raise ValueError(Errors.E151.format(unexpected_keys=unexpected_keys, expected_keys=expected_keys))
                 gold = GoldParse(doc, **gold)
             doc_objs.append(doc)
             gold_objs.append(gold)

spacy/tests/test_language.py

@@ -22,6 +22,7 @@ def nlp():
 def test_language_update(nlp):
     text = "hello world"
     annots = {"cats": {"POSITIVE": 1.0, "NEGATIVE": 0.0}}
+    wrongkeyannots = {"LABEL": True}
     doc = Doc(nlp.vocab, words=text.split(" "))
     gold = GoldParse(doc, **annots)
     # Update with doc and gold objects
@@ -37,6 +38,8 @@ def test_language_update(nlp):
         nlp.update([doc], [])
     with pytest.raises(IndexError):
         nlp.update([], [gold])
+    with pytest.raises(ValueError):
+        nlp.update([text], [wrongkeyannots])
 
 
 def test_language_evaluate(nlp):