Stop testing Python 2

Signed-off-by: Michał Górny <mgorny@gentoo.org>

3 files changed, 6 insertions, 36 deletions

diff --git a/README.rst b/README.rst
index aa1a964..6b65f12 100644
--- a/README.rst
+++ b/README.rst
@@ -73,12 +73,8 @@ behavior. Those are:
 Requirements
 ============
 gemato is written in Python and compatible with implementations
-of Python 2.7 and Python 3.4+. However, the support for Python 2
-is considered 'best effort' and has some known limitations. For example,
-non-ASCII paths on command-line do not work.
-
-gemato is currently tested against CPython 2.7, CPython 3.4 through 3.7,
-PyPy and PyPy3.
+of Python 3.4+. gemato is currently tested against CPython 3.4
+through 3.7 and PyPy3.
 
 gemato depends only on standard Python library modules and their
 backports. The exact runtime dependencies depend on the standard library
@@ -91,12 +87,6 @@ Python 3.4, 3.5
   - pyblake2 -- for BLAKE2 family of hashes [#pyblake2]_
   - pysha3 -- for SHA3 (Keccak) family of hashes [#pysha3]_
 
-Python 2.7
-  the above, plus:
-
-  - bz2file -- for BZip2 compression support [#bz2file]_ [#bz2py2]_
-  - backports.lzma -- for LZMA/XZ compressed file support [#lzma]_
-
 Additionally, gemato calls the GnuPG executable to work with OpenPGP
 signatures. Both GnuPG 1.4.21 and 2.2+ are tested.
 
@@ -113,17 +103,3 @@ References and footnotes
 .. [#pysha3] SHA-3 (Keccak) for Python 2.7 - 3.5
    (https://pypi.python.org/pypi/pysha3)
    (https://github.com/tiran/pysha3)
-
-.. [#bz2file] Read and write bzip2-compressed files
-   (https://pypi.python.org/pypi/bz2file)
-   (https://github.com/nvawda/bz2file)
-
-.. [#bz2py2] Strictly speaking, Python 2.7 has a ``bz2`` module.
-   However, this old module version does not support working on open
-   files nor multiple streams inside a single file. For this reason,
-   the external module is unconditionally required.
-
-.. [#lzma] Backport of Python 3.3's 'lzma' module for XZ/LZMA compressed
-   files
-   (https://pypi.python.org/pypi/backports.lzma)
-   (https://github.com/peterjc/backports.lzma)
diff --git a/setup.py b/setup.py
index 17c39ec..3bea4b4 100644
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,7 @@ setup(
         'Intended Audience :: System Administrators',
         'License :: OSI Approved :: BSD License',
         'Operating System :: POSIX',
-        'Programming Language :: Python',
+        'Programming Language :: Python :: 3 :: Only',
         'Topic :: Security :: Cryptography',
     ]
 )
diff --git a/tox.ini b/tox.ini
index ffb23f3..74a77b5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = qa,py27,py34,py35,py36,py37,py38,py39,pypy,pypy3,incompatible-lzma
+envlist = qa,py34,py35,py36,py37,py38,py39,pypy3
 skip_missing_interpreters = True
 # we operate on sources anyway
 skipsdist = True
@@ -10,20 +10,14 @@ deps =
 commands =
 	pyflakes {posargs:gemato tests}
 
-[testenv:incompatible-lzma]
-basepython = python2.7
-
 [testenv]
 deps =
 	coverage
 	pytest
 	pytest-cov
 	pytest-xdist
-	py27,py34,py35,pypy,pypy3,incompatible-lzma: pyblake2
-	py27,py34,py35,pypy: pysha3
-	py27,pypy: backports.lzma!=0.0.9
-	py27,pypy: bz2file
-	incompatible-lzma: pyliblzma
+	py34,py35,pypy3: pyblake2
+	py34,py35: pysha3
 commands =
 	pytest -vv --cov=gemato --cov-config=.coveragerc -n auto {posargs}