Drop official support for Python 2.7

.travis.yml

@@ -4,15 +4,6 @@ cache: pip
 
 matrix:
   include:
-    - name: "Python 2.7 on Linux"
-      python: 2.7
-      install:
-        - pip install -U pip wheel setuptools
-        - python setup.py install
-        # use "JPype1==0.7.1" (for kolnpy) because of Python 2 support
-        - pip install numpy tinysegmenter jieba "JPype1==0.7.1" konlpy
-        - python -c "import nltk; nltk.download('punkt')"
-        - pip install -U pytest codecov pytest-cov
     - name: "Python 3.5 on Linux"
       python: 3.5
     - name: "Python 3.6 on Linux"
@@ -22,9 +13,11 @@ matrix:
     - name: "Python 3.8 on Linux"
       dist: xenial
       python: 3.8
+    - name: "Python 3.9 on Linux"
+      python: 3.9
     # https://github.com/travis-ci/travis-ci/issues/2219#issuecomment-41804942
     # https://snarky.ca/how-to-use-your-project-travis-to-help-test-python-itself/
-    - name: "Python 3.9 Nightly on Linux"
+    - name: "Python 3.10 Nightly on Linux"
       dist: bionic
       python: nightly
     - name: "Pypy 3 on Linux"

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## 0.9.0 (???)
 - Added support for Hebrew language [#150](https://github.com/miso-belica/sumy/issues/150).
+- Dropped official support for Python 2.7. It should still work if you install Python 2 compatible dependencies.
 
 ## 0.8.1 (2019-05-19)
 - Open files for `PlaintextParser` in UTF-8 encoding [#123](https://github.com/miso-belica/sumy/pull/123)

CONTRIBUTING.md

@@ -14,9 +14,9 @@ with your code. Nothing is written in stone but please try to respect them.
 4. Please **respect the code style**. I don't want to set specific strict rules here because I think it's 
    possible to respect style from all the code around. For example you will not use `'` for strings 
    when you see that the code uses `"` ...
-5. Make sure you have Python 2.7 or 3.5+ installed. Also Python 3.4 and maybe older versions work but since it reached
-   end-of-life you could have difficulties with the transitive dependencies that dropped the support already.
-   Then, install all the required dependencies and run the tests:
+5. Make sure you have Python 3.5+ installed. Also, **Python 2.7/3.4** and maybe older versions work but since 
+   they reached end-of-life you could have difficulties with the transitive dependencies that dropped the support 
+   already. Then, install all the required dependencies and run the tests:
 
 ```sh
 $ pip install .

README.md

@@ -12,7 +12,7 @@ There is a [good chance](docs/index.md#Tokenizer) it is. But if not it is [not t
 
 ## Installation
 
-Make sure you have [Python](http://www.python.org/) 2.7/3.5+ and
+Make sure you have [Python](http://www.python.org/) 3.5+ and
 [pip](https://crate.io/packages/pip/)
 ([Windows](http://docs.python-guide.org/en/latest/starting/install/win/),
 [Linux](http://docs.python-guide.org/en/latest/starting/install/linux/))

setup.cfg

@@ -7,9 +7,6 @@ tag = false
 
 [bumpversion:file:sumy/__init__.py]
 
-[tool:pytest]
-addopts = --quiet --tb=short --color=yes --cov=sumy --cov-report=term-missing --no-cov-on-fail
-
 [pep8]
 max-line-length = 160
 

setup.py

@@ -105,6 +105,7 @@
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: Implementation :: CPython",
     ],
 )

sumy/_compat.py

@@ -24,17 +24,6 @@
     from itertools import filterfalse as ffilter
 
 
-try:
-    from collections import Counter
-except ImportError:
-    # Python < 2.7
-    from itertools import groupby
-
-    def Counter(iterable):
-        iterable = sorted(iterable)
-        return dict((key, len(tuple(group))) for key, group in groupby(iterable))
-
-
 def unicode_compatible(cls):
     """
     Decorator for unicode compatible classes. Method ``__unicode__``

sumy/models/tf.py

@@ -5,9 +5,10 @@
 
 import math
 
+from collections import Counter
 from pprint import pformat
 from collections import Sequence
-from .._compat import to_unicode, unicode, string_types, Counter
+from .._compat import to_unicode, unicode, string_types
 
 
 class TfDocumentModel(object):

sumy/summarizers/edmundson_key.py

@@ -3,7 +3,7 @@
 from __future__ import absolute_import
 from __future__ import division, print_function, unicode_literals
 
-from .._compat import Counter
+from collections import Counter
 from ._summarizer import AbstractSummarizer
 
 

sumy/summarizers/lex_rank.py

@@ -9,9 +9,8 @@
     import numpy
 except ImportError:
     numpy = None
-
+from collections import Counter
 from ._summarizer import AbstractSummarizer
-from .._compat import Counter
 
 
 class LexRankSummarizer(AbstractSummarizer):