deps, PY2: retract backports.tempfile dep

Author: ankostis

Diff for: .appveyor.yml

@@ -54,7 +54,7 @@ install:
       )
     - pip install   nose ddt wheel codecov
     -   IF "%PYTHON_VERSION%"=="2.7" (
-            pip install mock contextlib2 backports.tempfile
+            pip install mock contextlib2
         )
 
     ## Copied from `init-tests-after-clone.sh`.

Diff for: .travis.yml

@@ -18,7 +18,7 @@ install:
   - git submodule update --init --recursive
   - git fetch --tags
   - pip install codecov flake8 ddt sphinx
-  - if [ "$TRAVIS_PYTHON_VERSION" == '2.7' ]; then pip install  mock contextlib2 backports.tempfile; fi
+  - if [ "$TRAVIS_PYTHON_VERSION" == '2.7' ]; then pip install  mock contextlib2; fi
 
   # generate some reflog as git-python tests need it (in master)
   - ./init-tests-after-clone.sh

Diff for: git/test/lib/helper.py

@@ -23,11 +23,9 @@
 try:
     from unittest import mock
     from contextlib import ExitStack
-    from tempfile import TemporaryDirectory
 except ImportError:  # PY2
     import mock
     from contextlib2 import ExitStack  # @UnusedImport
-    from backports.tempfile import TemporaryDirectory  # @UnusedImport
 
 
 ospd = osp.dirname
@@ -244,7 +242,9 @@ def cleanup_clone(repo):
         gc.collect()
 
     with ExitStack() as stack:
-        clone_dir = stack.enter_context(TemporaryDirectory(prefix=clone_prefix))
+        clone_dir = tempfile.mkdtemp(prefix=clone_prefix)
+        stack.callback(rmtree, clone_dir)
+
         clone = repo.clone(clone_dir, **clone_kwargs)
         stack.callback(cleanup_clone, clone)
 

Diff for: requirements.txt

@@ -1,4 +1,3 @@
 gitdb>=0.6.4
 mock                # PY2 only
 contextlib2         # PY2 only
-backports.tempfile  # PY2 only