Drop support for EOL Python 2.6 and 3.3

.appveyor.yml

@@ -7,9 +7,6 @@ environment:
     matrix:
         ## MINGW
         #
-      - PYTHON: "C:\\Python26"
-        PYTHON_VERSION: "2.6"
-        GIT_PATH: "%GIT_DAEMON_PATH%"
       - PYTHON: "C:\\Python27"
         PYTHON_VERSION: "2.7"
         GIT_PATH: "%GIT_DAEMON_PATH%"

.travis.yml

@@ -1,8 +1,6 @@
 language: python
 python:
-  - "2.6"
   - "2.7"
-  - "3.3"
   - "3.4"
   - "3.5"
   - "3.6"
@@ -12,7 +10,6 @@ python:
   # - "pypy" - won't work as smmap doesn't work (see gitdb/.travis.yml for details)
 matrix:
   allow_failures:
-    - python: "2.6"
     - python: "3.6-dev"
     - python: "3.7-dev"
     - python: "nightly"
@@ -26,7 +23,6 @@ install:
   - git fetch --tags
   - pip install -r test-requirements.txt
   - pip install codecov sphinx
-  - if [ "$TRAVIS_PYTHON_VERSION" == '2.6' ]; then pip install unittest2; fi
 
   # generate some reflog as git-python tests need it (in master)
   - ./init-tests-after-clone.sh

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 ### How to contribute
 
-* [fork this project](https://github.com/gitpython-developers/GitPython/fork) on github
+* [fork this project](https://github.com/gitpython-developers/GitPython/fork) on GitHub
 * For setting up the environment to run the self tests, look at `.travis.yml`.
 * Add yourself to AUTHORS.md and write your patch. **Write a test that fails unless your patch is present.**
 * Initiate a pull request

README.md

@@ -19,7 +19,7 @@ If it is not in your `PATH`, you can help GitPython find it by setting
 the `GIT_PYTHON_GIT_EXECUTABLE=<path/to/git>` environment variable.
 
 * Git (1.7.x or newer)
-* Python 2.7 to 3.6, while python 2.6 is supported on a *best-effort basis*.
+* Python 2.7 to 3.6.
 
 The list of dependencies are listed in `./requirements.txt` and `./test-requirements.txt`.
 The installer takes care of installing them for you.
@@ -68,10 +68,6 @@ For *Windows*, we do regularly test it on [Appveyor CI](https://www.appveyor.com
 but not all test-cases pass - you may help improve them by exploring
 [Issue #525](https://github.com/gitpython-developers/GitPython/issues/525).
 
-#### Python 2.6
-
-Python 2.6 is supported on best-effort basis; which means that it is likely to deteriorate over time.
-
 ### RUNNING TESTS
 
 *Important*: Right after cloning this repository, please be sure to have executed

doc/source/changes.rst

@@ -161,13 +161,13 @@ Please note that due to breaking changes, we have to increase the major version.
   with large repositories.
 * CRITICAL: fixed incorrect `Commit` object serialization when authored or commit date had timezones which were not
   divisiblej by 3600 seconds. This would happen if the timezone was something like `+0530` for instance.
-* A list of all additional fixes can be found `on github <https://github.com/gitpython-developers/GitPython/issues?q=milestone%3A%22v1.0.2+-+Fixes%22+is%3Aclosed>`_
+* A list of all additional fixes can be found `on GitHub <https://github.com/gitpython-developers/GitPython/issues?q=milestone%3A%22v1.0.2+-+Fixes%22+is%3Aclosed>`_
 * CRITICAL: `Tree.cache` was removed without replacement. It is technically impossible to change individual trees and expect their serialization results to be consistent with what *git* expects. Instead, use the `IndexFile` facilities to adjust the content of the staging area, and write it out to the respective tree objects using `IndexFile.write_tree()` instead.
 
 1.0.1 - Fixes
 =============
 
-* A list of all issues can be found `on github <https://github.com/gitpython-developers/GitPython/issues?q=milestone%3A%22v1.0.1+-+Fixes%22+is%3Aclosed>`_
+* A list of all issues can be found `on GitHub <https://github.com/gitpython-developers/GitPython/issues?q=milestone%3A%22v1.0.1+-+Fixes%22+is%3Aclosed>`_
 
 1.0.0 - Notes
 =============
@@ -191,7 +191,7 @@ It follows the `semantic version scheme <http://semver.org>`_, and thus will not
 
   - Those who support **GUI on windows** will now have to set `git.Git.USE_SHELL = True` to get the previous behaviour.
 
-* A list of all issues can be found `on github <https://github.com/gitpython-developers/GitPython/issues?q=milestone%3A%22v0.3.7+-+Fixes%22+is%3Aclosed>`_
+* A list of all issues can be found `on GitHub <https://github.com/gitpython-developers/GitPython/issues?q=milestone%3A%22v0.3.7+-+Fixes%22+is%3Aclosed>`_
 
 
 0.3.6 - Features
@@ -207,11 +207,11 @@ It follows the `semantic version scheme <http://semver.org>`_, and thus will not
   * Repo.working_tree_dir now returns None if it is bare. Previously it raised AssertionError.
   * IndexFile.add() previously raised AssertionError when paths where used with bare repository, now it raises InvalidGitRepositoryError
 
-* Added `Repo.merge_base()` implementation. See the `respective issue on github <https://github.com/gitpython-developers/GitPython/issues/169>`_
+* Added `Repo.merge_base()` implementation. See the `respective issue on GitHub <https://github.com/gitpython-developers/GitPython/issues/169>`_
 * `[include]` sections in git configuration files are now respected
 * Added `GitConfigParser.rename_section()`
 * Added `Submodule.rename()`
-* A list of all issues can be found `on github <https://github.com/gitpython-developers/GitPython/issues?q=milestone%3A%22v0.3.6+-+Features%22+>`_
+* A list of all issues can be found `on GitHub <https://github.com/gitpython-developers/GitPython/issues?q=milestone%3A%22v0.3.6+-+Features%22+>`_
 
 0.3.5 - Bugfixes
 ================

doc/source/intro.rst

@@ -14,8 +14,6 @@ Requirements
 ============
 
 * `Python`_ 2.7 or newer
-    Since GitPython 2.0.0. Please note that python 2.6 is still reasonably well supported, but might
-    deteriorate over time. Support is provided on a best-effort basis only.
 * `Git`_ 1.7.0 or newer
     It should also work with older versions, but it may be that some operations
     involving remotes will not work as expected.
@@ -75,12 +73,6 @@ codebase for `__del__` implementations and call these yourself when you see fit.
 Another way assure proper cleanup of resources is to factor out GitPython into a
 separate process which can be dropped periodically.
 
-Best-effort for Python 2.6 and Windows support
-----------------------------------------------
-
-This means that support for these platforms is likely to worsen over time
-as they are kept alive solely by their users, or not.
-
 Getting Started
 ===============
 
@@ -124,7 +116,7 @@ http://stackoverflow.com/questions/tagged/gitpython
 
 Issue Tracker
 =============
-The issue tracker is hosted by github:
+The issue tracker is hosted by GitHub:
 
 https://github.com/gitpython-developers/GitPython/issues
 

doc/source/roadmap.rst

@@ -2,7 +2,7 @@
 #######
 Roadmap
 #######
-The full list of milestones including associated tasks can be found on github: 
+The full list of milestones including associated tasks can be found on GitHub:
 https://github.com/gitpython-developers/GitPython/issues
 
 Select the respective milestone to filter the list of issues accordingly.

git/cmd.py

@@ -17,6 +17,7 @@
 import subprocess
 import sys
 import threading
+from collections import OrderedDict
 from textwrap import dedent
 
 from git.compat import (
@@ -31,7 +32,6 @@
     is_win,
 )
 from git.exc import CommandError
-from git.odict import OrderedDict
 from git.util import is_cygwin_git, cygpath, expand_path
 
 from .exc import (
@@ -44,10 +44,10 @@
 )
 
 
-execute_kwargs = set(('istream', 'with_extended_output',
-                      'with_exceptions', 'as_process', 'stdout_as_string',
-                      'output_stream', 'with_stdout', 'kill_after_timeout',
-                      'universal_newlines', 'shell', 'env'))
+execute_kwargs = {'istream', 'with_extended_output', 'with_exceptions',
+                  'as_process', 'stdout_as_string', 'output_stream',
+                  'with_stdout', 'kill_after_timeout', 'universal_newlines',
+                  'shell', 'env'}
 
 log = logging.getLogger(__name__)
 log.addHandler(logging.NullHandler())
@@ -125,7 +125,7 @@ def dashify(string):
 
 
 def slots_to_dict(self, exclude=()):
-    return dict((s, getattr(self, s)) for s in self.__slots__ if s not in exclude)
+    return {s: getattr(self, s) for s in self.__slots__ if s not in exclude}
 
 
 def dict_to_slots_and__excluded_are_none(self, d, excluded=()):
@@ -143,8 +143,7 @@ def dict_to_slots_and__excluded_are_none(self, d, excluded=()):
 ## CREATE_NEW_PROCESS_GROUP is needed to allow killing it afterwards,
 # see https://docs.python.org/3/library/subprocess.html#subprocess.Popen.send_signal
 PROC_CREATIONFLAGS = (CREATE_NO_WINDOW | subprocess.CREATE_NEW_PROCESS_GROUP
-                      if is_win and sys.version_info >= (2, 7)
-                      else 0)
+                      if is_win else 0)
 
 
 class Git(LazyMixin):
@@ -486,10 +485,10 @@ def readline(self, size=-1):
 
         def readlines(self, size=-1):
             if self._nbr == self._size:
-                return list()
+                return []
 
             # leave all additional logic to our readline method, we just check the size
-            out = list()
+            out = []
             nbr = 0
             while True:
                 line = self.readline()
@@ -895,7 +894,7 @@ def transform_kwarg(self, name, value, split_single_char_options):
 
     def transform_kwargs(self, split_single_char_options=True, **kwargs):
         """Transforms Python style kwargs into git command line options."""
-        args = list()
+        args = []
         kwargs = OrderedDict(sorted(kwargs.items(), key=lambda x: x[0]))
         for k, v in kwargs.items():
             if isinstance(v, (list, tuple)):
@@ -914,7 +913,7 @@ def __unpack_args(cls, arg_list):
                 return [arg_list.encode(defenc)]
             return [str(arg_list)]
 
-        outlist = list()
+        outlist = []
         for arg in arg_list:
             if isinstance(arg_list, (list, tuple)):
                 outlist.extend(cls.__unpack_args(arg))
@@ -973,8 +972,8 @@ def _call_process(self, method, *args, **kwargs):
         :return: Same as ``execute``"""
         # Handle optional arguments prior to calling transform_kwargs
         # otherwise these'll end up in args, which is bad.
-        exec_kwargs = dict((k, v) for k, v in kwargs.items() if k in execute_kwargs)
-        opts_kwargs = dict((k, v) for k, v in kwargs.items() if k not in execute_kwargs)
+        exec_kwargs = {k: v for k, v in kwargs.items() if k in execute_kwargs}
+        opts_kwargs = {k: v for k, v in kwargs.items() if k not in execute_kwargs}
 
         insert_after_this_arg = opts_kwargs.pop('insert_kwargs_after', None)
 

git/config.py

@@ -12,6 +12,7 @@
 import logging
 import os
 import re
+from collections import OrderedDict
 
 from git.compat import (
     string_types,
@@ -21,7 +22,6 @@
     with_metaclass,
     PY3
 )
-from git.odict import OrderedDict
 from git.util import LockFile
 
 import os.path as osp

git/diff.py

@@ -61,7 +61,7 @@ class Diffable(object):
     :note:
         Subclasses require a repo member as it is the case for Object instances, for practical
         reasons we do not derive from Object."""
-    __slots__ = tuple()
+    __slots__ = ()
 
     # standin indicating you want to diff against the index
     class Index(object):
@@ -106,7 +106,7 @@ def diff(self, other=Index, paths=None, create_patch=False, **kwargs):
         :note:
             On a bare repository, 'other' needs to be provided as Index or as
             as Tree/Commit, or a git command error will occur"""
-        args = list()
+        args = []
         args.append("--abbrev=40")        # we need full shas
         args.append("--full-index")       # get full index paths, not only filenames
 

git/index/base.py

@@ -121,7 +121,7 @@ def _set_cache_(self, attr):
                 ok = True
             except OSError:
                 # in new repositories, there may be no index, which means we are empty
-                self.entries = dict()
+                self.entries = {}
                 return
             finally:
                 if not ok:
@@ -324,7 +324,7 @@ def from_tree(cls, repo, *treeish, **kwargs):
         if len(treeish) == 0 or len(treeish) > 3:
             raise ValueError("Please specify between 1 and 3 treeish, got %i" % len(treeish))
 
-        arg_list = list()
+        arg_list = []
         # ignore that working tree and index possibly are out of date
         if len(treeish) > 1:
             # drop unmerged entries when reading our index and merging
@@ -471,9 +471,9 @@ def unmerged_blobs(self):
             are at stage 3 will not have a stage 3 entry.
         """
         is_unmerged_blob = lambda t: t[0] != 0
-        path_map = dict()
+        path_map = {}
         for stage, blob in self.iter_blobs(is_unmerged_blob):
-            path_map.setdefault(blob.path, list()).append((stage, blob))
+            path_map.setdefault(blob.path, []).append((stage, blob))
         # END for each unmerged blob
         for l in mviter(path_map):
             l.sort()
@@ -576,8 +576,8 @@ def _to_relative_path(self, path):
 
     def _preprocess_add_items(self, items):
         """ Split the items into two lists of path strings and BaseEntries. """
-        paths = list()
-        entries = list()
+        paths = []
+        entries = []
 
         for item in items:
             if isinstance(item, string_types):
@@ -610,7 +610,7 @@ def _store_path(self, filepath, fprogress):
     @unbare_repo
     @git_working_dir
     def _entries_for_paths(self, paths, path_rewriter, fprogress, entries):
-        entries_added = list()
+        entries_added = []
         if path_rewriter:
             for path in paths:
                 if osp.isabs(path):
@@ -742,7 +742,7 @@ def add(self, items, force=True, fprogress=lambda *args: None, path_rewriter=Non
         # automatically
         # paths can be git-added, for everything else we use git-update-index
         paths, entries = self._preprocess_add_items(items)
-        entries_added = list()
+        entries_added = []
         # This code needs a working tree, therefore we try not to run it unless required.
         # That way, we are OK on a bare repository as well.
         # If there are no paths, the rewriter has nothing to do either
@@ -809,7 +809,7 @@ def handle_null_entries(self):
     def _items_to_rela_paths(self, items):
         """Returns a list of repo-relative paths from the given items which
         may be absolute or relative paths, entries or blobs"""
-        paths = list()
+        paths = []
         for item in items:
             if isinstance(item, (BaseIndexEntry, (Blob, Submodule))):
                 paths.append(self._to_relative_path(item.path))
@@ -858,7 +858,7 @@ def remove(self, items, working_tree=False, **kwargs):
             been removed effectively.
             This is interesting to know in case you have provided a directory or
             globs. Paths are relative to the repository. """
-        args = list()
+        args = []
         if not working_tree:
             args.append("--cached")
         args.append("--")
@@ -897,7 +897,7 @@ def move(self, items, skip_errors=False, **kwargs):
 
         :raise ValueError: If only one item was given
             GitCommandError: If git could not handle your request"""
-        args = list()
+        args = []
         if skip_errors:
             args.append('-k')
 
@@ -910,7 +910,7 @@ def move(self, items, skip_errors=False, **kwargs):
 
         # first execute rename in dryrun so the command tells us what it actually does
         # ( for later output )
-        out = list()
+        out = []
         mvlines = self.repo.git.mv(args, paths, **kwargs).splitlines()
 
         # parse result - first 0:n/2 lines are 'checking ', the remaining ones
@@ -1041,9 +1041,9 @@ def handle_stderr(proc, iter_checked_out_files):
             # line contents:
             stderr = stderr.decode(defenc)
             # git-checkout-index: this already exists
-            failed_files = list()
-            failed_reasons = list()
-            unknown_lines = list()
+            failed_files = []
+            failed_reasons = []
+            unknown_lines = []
             endings = (' already exists', ' is not in the cache', ' does not exist at stage', ' is unmerged')
             for line in stderr.splitlines():
                 if not line.startswith("git checkout-index: ") and not line.startswith("git-checkout-index: "):
@@ -1106,7 +1106,7 @@ def handle_stderr(proc, iter_checked_out_files):
             proc = self.repo.git.checkout_index(args, **kwargs)
             # FIXME: Reading from GIL!
             make_exc = lambda: GitCommandError(("git-checkout-index",) + tuple(args), 128, proc.stderr.read())
-            checked_out_files = list()
+            checked_out_files = []
 
             for path in paths:
                 co_path = to_native_path_linux(self._to_relative_path(path))