Prepare gensim v3.8.2 to pin smart_open for Py2.7 compatibility (#2787)

* pin version of smart-open to py2 compatible

* add a comment

Co-Authored-By: Radim Řehůřek <me@radimrehurek.com>

* make pin conditional (py27 only)

* prepare version 3.8.2

* add deprecations to README

* get rid rackcdn, bump scipy to 1.0.0

* bump scipy to 1.0.0 in setup.py

Co-authored-by: Yury Brukau <brukau@ebu.ch>
Co-authored-by: Radim Řehůřek <me@radimrehurek.com>
Co-authored-by: Michael Penkov <misha.penkov@gmail.com>
Co-authored-by: Ivan Menshikh <menshikh.iv@gmail.com>

CHANGELOG.md

@@ -3,6 +3,34 @@ Changes
 
 ## :warning: 3.8.x will be the last gensim version to support Py2.7. Starting with 4.0.0, gensim will only support Py3.5 and above
 
+## 3.8.2, 2020-04-10
+
+### :red_circle: Bug fixes
+
+* Pin `smart_open` version for compatibility with Py2.7
+
+### :warning: Deprecations (will be removed in the next major release)
+
+* Remove
+    - `gensim.models.FastText.load_fasttext_format`: use load_facebook_vectors to load embeddings only (faster, less CPU/memory usage, does not support training continuation) and load_facebook_model to load full model (slower, more CPU/memory intensive, supports training continuation)
+    - `gensim.models.wrappers.fasttext` (obsoleted by the new native `gensim.models.fasttext` implementation)
+    - `gensim.examples`
+    - `gensim.nosy`
+    - `gensim.scripts.word2vec_standalone`
+    - `gensim.scripts.make_wiki_lemma`
+    - `gensim.scripts.make_wiki_online`
+    - `gensim.scripts.make_wiki_online_lemma`
+    - `gensim.scripts.make_wiki_online_nodebug`
+    - `gensim.scripts.make_wiki` (all of these obsoleted by the new native  `gensim.scripts.segment_wiki` implementation)
+    - "deprecated" functions and attributes
+
+* Move
+    - `gensim.scripts.make_wikicorpus` ➡ `gensim.scripts.make_wiki.py`
+    - `gensim.summarization` ➡ `gensim.models.summarization`
+    - `gensim.topic_coherence` ➡ `gensim.models._coherence`
+    - `gensim.utils` ➡ `gensim.utils.utils` (old imports will continue to work)
+    - `gensim.parsing.*` ➡ `gensim.utils.text_utils`
+
 ## 3.8.1, 2019-09-23
 
 ### :red_circle: Bug fixes

docs/src/conf.py

@@ -63,7 +63,7 @@
 # The short X.Y version.
 version = '3.8'
 # The full version, including alpha/beta/rc tags.
-release = '3.8.1'
+release = '3.8.2'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

setup.py

@@ -349,9 +349,24 @@ def run(self):
     install_requires.append(CYTHON_STR)
     setup_requires.append(CYTHON_STR)
 
+install_requires = [
+    NUMPY_STR,
+    'scipy >= 1.0.0',
+    'six >= 1.5.0',
+]
+
+#
+# smart_open >= 1.11 is py3+ only.
+# TODO: Remove the pin once we drop py2.7 from gensim too.
+#
+if PY2:
+    install_requires.append('smart_open >= 1.8.1, < 1.11')
+else:
+    install_requires.append('smart_open >= 1.8.1')
+
 setup(
     name='gensim',
-    version='3.8.1',
+    version='3.8.2',
     description='Python framework for fast Vector Space Modelling',
     long_description=LONG_DESCRIPTION,