Switch CI to Python 3.5 and declare Python 3.5 support

Author: leezu

README.rst

@@ -15,7 +15,7 @@ GluonNLP: Your Choice of Deep Learning for NLP
 
 .. raw:: html
 
-   <a href='http://ci.mxnet.io/job/gluon-nlp/job/master/'><img src='https://img.shields.io/badge/python-3.6%2C3.7-blue.svg'></a>
+   <a href='http://ci.mxnet.io/job/gluon-nlp/job/master/'><img src='https://img.shields.io/badge/python-3.5%2C3.7-blue.svg'></a>
    <a href='https://codecov.io/gh/dmlc/gluon-nlp'><img src='https://codecov.io/gh/dmlc/gluon-nlp/branch/master/graph/badge.svg'></a>
    <a href='http://ci.mxnet.io/job/gluonnlp-py3-master-gpu-doc/job/master/'><img src='http://ci.mxnet.io/buildStatus/icon?job=gluonnlp-py3-master-gpu-doc%2Fmaster'></a>
    <a href='https://pypi.org/project/gluonnlp/#history'><img src='https://img.shields.io/pypi/v/gluonnlp.svg'></a>
@@ -43,8 +43,8 @@ News
 Installation
 ============
 
-Make sure you have Python 3.6 or newer and a recent version of MXNet (our CI
-server runs the testsuite with Python 3.6).
+Make sure you have Python 3.5 or newer and a recent version of MXNet (our CI
+server runs the testsuite with Python 3.5).
 
 You can install ``MXNet`` and ``GluonNLP`` using pip.
 

docs/install/install-include.rst

@@ -47,7 +47,7 @@ Select your preferences and run the install command.
   .. admonition:: Prerequisites:
 
      - Requires `pip >= 9. <https://pip.pypa.io/en/stable/installing/>`_.
-       Python 3.6+ are supported.
+       Python 3.5+ are supported.
 
      .. container:: nightly
 

env/cpu/py3-master.yml

@@ -1,26 +1,26 @@
 channels:
   - conda-forge
 dependencies:
-  - python=3.6
-  - pip=18.1
-  - cython
+  - python=3.5
+  - pip
   - perl
-  - pylint=2.3.1
-  - flake8
-  - sphinx=2.1.2
-  - spacy>2
-  - nltk
-  - pytest=4.5.0
-  - pytest-env
-  - flaky=3.5.3
-  - pytest-cov=2.7.1
-  - mock<3
-  - pytest-xdist<2
-  - regex
-  - scipy=1.3.1
   - pip:
+    - cython
+    - pytest==5.2.3
+    - pytest-env==0.6.2
+    - pytest-cov==2.8.1
+    - pytest-xdist==1.30.0
+    - pylint==2.4.4
     - pylint-quotes==0.2.1
+    - flaky==3.6.1
+    - flake8==3.7.9
+    - mock<3
+    - sphinx==2.2.1
     - mxnet>=1.6.0b20191103
-    - sacremoses
-    - sentencepiece<0.2
+    - scipy==1.3.2
+    - regex==2019.11.1 
+    - nltk==3.4.5
+    - sacremoses==0.0.35
+    - spacy==2.2.2
+    - sentencepiece==0.1.83
     - sphinx-autodoc-typehints==1.7.0

env/docker/py3.yml

@@ -1,39 +1,40 @@
 channels:
   - conda-forge
 dependencies:
-  - python=3.6
-  - pip=18.1
-  - cython
+  - python=3.5
+  - pip
   - perl
-  - pylint=1.9.2
-  - flake8
-  - sphinx=2.1.2
-  - spacy>2
-  - nltk
-  - pytest=4.5.0
-  - pytest-env
-  - flaky=3.5.3
-  - pytest-cov=2.7.1
-  - mock<3
-  - pytest-xdist<2
-  - recommonmark
   - pandoc=1.19.2
-  - notedown
-  - numba>=v0.40.0
-  - sphinx-gallery
-  - nbsphinx>=0.3.4,<0.4
-  - nbconvert=5.4.0
   - tornado=5.1.1
-  - ipython
-  - ipykernel
-  - regex
-  - scipy=1.3.1
-  - scikit-learn=0.21.3
   - pip:
-    - pylint-quotes<0.2
-    - mxnet-cu100>=1.6.0b20191027
-    - sacremoses
-    - sentencepiece<0.2
+    - notedown==1.5.1
+    - sphinx-gallery==0.4.0
+    - recommonmark==0.6.0
+    - nbconvert==5.6.1
+    - nbsphinx>=0.3.4,<0.4
+    - ipython
+    - ipykernel
+    - numba==0.46
     - https://github.com/szha/mx-theme/tarball/master
     - seaborn
     - jieba
+    - scikit-learn==0.21.3
+    - cython
+    - pytest==5.2.3
+    - pytest-env==0.6.2
+    - pytest-cov==2.8.1
+    - pytest-xdist==1.30.0
+    - pylint==2.4.4
+    - pylint-quotes==0.2.1
+    - flaky==3.6.1
+    - flake8==3.7.9
+    - mock<3
+    - sphinx==2.2.1
+    - mxnet-cu100>=1.6.0b20191027,!=1.6.0b20191102
+    - scipy==1.3.2
+    - regex==2019.11.1 
+    - nltk==3.4.5
+    - sacremoses==0.0.35
+    - spacy==2.2.2
+    - sentencepiece==0.1.83
+    - sphinx-autodoc-typehints==1.7.0

env/gpu/py3-master.yml

@@ -1,39 +1,39 @@
 channels:
   - conda-forge
 dependencies:
-  - python=3.6
-  - pip=18.1
-  - cython
+  - python=3.5
+  - pip
   - perl
-  - pylint=2.3.1
-  - flake8
-  - sphinx=2.1.2
-  - spacy>2
-  - nltk
-  - pytest=4.5.0
-  - pytest-env
-  - flaky=3.5.3
-  - pytest-cov=2.7.1
-  - mock<3
-  - pytest-xdist<2
-  - recommonmark
   - pandoc=1.19.2
-  - notedown
-  - numba>=v0.40.0
-  - sphinx-gallery
-  - nbsphinx>=0.3.4,<0.4
-  - nbconvert=5.4.0
   - tornado=5.1.1
-  - ipython
-  - ipykernel
-  - regex
-  - scipy=1.3.1
   - pip:
-    - pylint-quotes<0.2
-    - mxnet-cu100>=1.6.0b20191027,!=1.6.0b20191102
-    - sacremoses
-    - sentencepiece<0.2
+    - notedown==1.5.1
+    - sphinx-gallery==0.4.0
+    - recommonmark==0.6.0
+    - nbconvert==5.6.1
+    - nbsphinx>=0.3.4,<0.4
+    - ipython
+    - ipykernel
+    - numba==0.46
     - https://github.com/szha/mx-theme/tarball/master
     - seaborn
     - jieba
+    - cython
+    - pytest==5.2.3
+    - pytest-env==0.6.2
+    - pytest-cov==2.8.1
+    - pytest-xdist==1.30.0
+    - pylint==2.4.4
+    - pylint-quotes==0.2.1
+    - flaky==3.6.1
+    - flake8==3.7.9
+    - mock<3
+    - sphinx==2.2.1
+    - mxnet-cu100>=1.6.0b20191027,!=1.6.0b20191102
+    - scipy==1.3.2
+    - regex==2019.11.1 
+    - nltk==3.4.5
+    - sacremoses==0.0.35
+    - spacy==2.2.2
+    - sentencepiece==0.1.83
     - sphinx-autodoc-typehints==1.7.0

setup.py

@@ -37,7 +37,7 @@ def find_version(*file_paths):
     # Metadata
     name='gluonnlp',
     version=VERSION,
-    python_requires='>=3.6',
+    python_requires='>=3.5',
     author='Gluon NLP Toolkit Contributors',
     author_email='[email protected]',
     url='https://github.com/dmlc/gluon-nlp',