Add Python 3 support

.travis.yml

@@ -1,5 +1,7 @@
 language: python
 python:
+  - "3.4"
+  - "3.3"
   - "2.7"
   - "2.6"
 # command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors

PyGitUp/git_wrapper.py

@@ -23,6 +23,8 @@
 import platform
 from contextlib import contextmanager
 
+import six
+
 # 3rd party libs
 from termcolor import colored  # Assume, colorama is already initialized
 from git import GitCommandError, CheckoutError as OrigCheckoutError, Git
@@ -84,7 +86,7 @@ def run(self, name, *args, **kwargs):
         """ Run a git command specified by name and args/kwargs. """
 
         tostdout = kwargs.pop('tostdout', False)
-        stdout = ''
+        stdout = six.b('')
 
         # Execute command
         cmd = getattr(self.git, name)(as_process=True, *args, **kwargs)
@@ -95,12 +97,12 @@ def run(self, name, *args, **kwargs):
 
             # Print to stdout
             if tostdout:
-                sys.stdout.write(output)
+                sys.stdout.write(output.decode('utf-8'))
                 sys.stdout.flush()
 
             stdout += output
 
-            if output == "":
+            if output == six.b(""):
                 break
 
         # Wait for the process to quit

PyGitUp/gitup.py

@@ -43,12 +43,15 @@
 import re
 import platform
 import json
-import urllib2
 import subprocess
-from cStringIO import StringIO
 from contextlib import contextmanager
 from tempfile import NamedTemporaryFile
 
+import six
+from six.moves import cStringIO as StringIO
+from six.moves.urllib.error import HTTPError, URLError
+from six.moves.urllib.request import urlopen
+
 # 3rd party libs
 try:
     #noinspection PyUnresolvedReferences
@@ -181,7 +184,8 @@ def __init__(self, testing=False, sparse=False):
 
         # change_count: Number of unstaged changes
         self.change_count = len(
-            self.git.status(porcelain=True, untracked_files='no').split('\n')
+            self.git.status(porcelain=True, untracked_files='no').split(
+                six.b('\n'))
         )
 
         # Load configuration
@@ -253,7 +257,7 @@ def rebase_all_branches(self):
 
                 continue  # Do not do anything
 
-            base = self.git.merge_base(branch.name, target.name)
+            base = self.git.merge_base(branch.name, target.name).decode('utf-8')
 
             if base == target.commit.hexsha:
                 print(colored('ahead of upstream', 'cyan'))
@@ -386,9 +390,9 @@ def version_info(self):
 
         try:
             # Get version information from the PyPI JSON API
-            details = json.load(urllib2.urlopen(PYPI_URL))
+            details = json.load(urlopen(PYPI_URL))
             online_version = details['info']['version']
-        except (urllib2.HTTPError, urllib2.URLError, ValueError):
+        except (HTTPError, URLError, ValueError):
             recent = True  # To not disturb the user with HTTP/parsing errors
         else:
             recent = local_version >= pkg.parse_version(online_version)

README.rst

@@ -62,8 +62,7 @@ Otherwise pip will refuse to install ``git-up`` due to ``Access denied`` errors.
 Python 3 compatibility:
 ~~~~~~~~~~~~~~~~~~~~~~~
 
-``PyGitUp`` is not compatible with Python 3 because some essential 3rd party
-libs don't support it. Sorry.
+Python 3.3 and 3.4 are supported.
 
 Options and Configuration
 -------------------------

requirements.txt

@@ -1,4 +1,5 @@
-GitPython==0.3.4
-colorama==0.3.2
+GitPython==0.3.6
+colorama==0.3.3
 termcolor==1.1.0
 docopt==0.6.2
+six==1.9.0

setup.py

@@ -6,8 +6,9 @@
     version="1.2.2",
     packages=find_packages(exclude=["tests"]),
     scripts=['PyGitUp/gitup.py'],
-    install_requires=['GitPython==0.3.4', 'colorama==0.3.2',
-                      'termcolor==1.1.0', 'docopt==0.6.2'],
+    install_requires=['GitPython==0.3.6', 'colorama==0.3.3',
+                      'termcolor==1.1.0', 'docopt==0.6.2',
+                      'six==1.9.0'],
 
     # Tests
     test_suite="nose.collector",

tests/__init__.py

@@ -27,7 +27,7 @@ def run_test(*args, **kwargs):
 @contextlib.contextmanager
 def capture():
     import sys
-    from cStringIO import StringIO
+    from six.moves import cStringIO as StringIO
     oldout, olderr = sys.stdout, sys.stderr
     out = None
     try:

tests/test_bundler.py

@@ -4,6 +4,8 @@
 import subprocess
 from os.path import join
 
+import six
+
 # 3rd party libs
 from nose.plugins.skip import SkipTest
 from git import *
@@ -55,7 +57,7 @@ def is_installed(prog):
             return False
 
     def get_output(cmd):
-        return subprocess.check_output(cmd, shell=shell)
+        return str(subprocess.check_output(cmd, shell=shell))
 
     # Check for ruby and bundler
     if not (is_installed('ruby') and is_installed('gem')

tests/test_not_on_a_git_repo.py

@@ -14,7 +14,7 @@
 
 
 def setup():
-    os.makedirs(repo_path, 0700)
+    os.makedirs(repo_path, 0o700)
 
 
 @raises(GitError)