Remove WordFrequencyData ... (#13)

for now. __init__.py "library" -> Python library

Author: rocky

pymathics/natlang/__init__.py

@@ -2,7 +2,7 @@
 Natural Language Processing
 
 Mathics3 Module module provides functions and variables to work with \
-expressions in natural language, using the libraries:
+expressions in natural language, using the Python libraries:
 
 <ul>
   <li><url>:spacy:
@@ -56,7 +56,6 @@
     WordData,
     WordDefinition,
     WordFrequency,
-    WordFrequencyData,
     WordList,
     WordSimilarity,
     WordStem,
@@ -87,7 +86,6 @@
     "WordData",
     "WordDefinition",
     "WordFrequency",
-    "WordFrequencyData",
     "WordList",
     "WordSimilarity",
     "WordStem",

pymathics/natlang/main.py

@@ -265,27 +265,6 @@ def is_stop(word):
         return is_stop
 
 
-class WordFrequencyData(_SpacyBuiltin):
-    """
-    <dl>
-      <dt>'WordFrequencyData[$word$]'
-      <dd>returns the frequency of $word$ in common English texts.
-    </dl>
-    """
-
-    # Mathematica uses the gargantuan Google n-gram corpus, see
-    # http://commondatastorage.googleapis.com/books/syntactic-ngrams/index.html
-
-    def eval(self, word: String, evaluation: Evaluation, options: dict) -> Real:
-        "WordFrequencyData[word_String,  OptionsPattern[WordFrequencyData]]"
-        doc = self._nlp(word.value, evaluation, options)
-        frequency = 0.0
-        if doc:
-            if len(doc) == 1:
-                frequency = math.exp(doc[0].prob)  # convert log probability
-        return Real(frequency)
-
-
 class WordCount(_SpacyBuiltin):
     """
     <dl>