Pull out Python 2 support hacks

backportpackage

@@ -22,6 +22,7 @@ import glob
 import optparse
 import os
 import shutil
+import subprocess
 import sys
 import tempfile
 
@@ -39,7 +40,6 @@ from ubuntutools.logger import Logger
 from ubuntutools.misc import (system_distribution, vendor_to_distroinfo,
                               codename_to_distribution)
 from ubuntutools.question import YesNoQuestion
-from ubuntutools import subprocess
 
 
 def error(msg):

pbuilder-dist

@@ -30,6 +30,7 @@
 # that the target distribution is always meant to be Ubuntu Hardy.
 
 import os
+import subprocess
 import sys
 
 import debian.deb822
@@ -40,7 +41,6 @@ import ubuntutools.version
 from ubuntutools.config import UDTConfig
 from ubuntutools.logger import Logger
 from ubuntutools.question import YesNoQuestion
-from ubuntutools import subprocess
 
 
 class PbuilderDist(object):

setup.py

@@ -4,12 +4,11 @@ from setuptools import setup
 import glob
 import os
 import re
-import codecs
 
 # look/set what version we have
 changelog = "debian/changelog"
 if os.path.exists(changelog):
-    head = codecs.open(changelog, 'r', 'utf-8', 'replace').readline()
+    head = open(changelog, 'r', encoding='utf-8').readline()
     match = re.compile(r".*\((.*)\).*").match(head)
     if match:
         version = match.group(1)

submittodebian

@@ -27,13 +27,13 @@ import os
 import re
 import shutil
 import sys
+from subprocess import call, check_call, Popen, PIPE
 from tempfile import mkdtemp
 
 from distro_info import UbuntuDistroInfo, DistroDataOutdated
 
 from ubuntutools.config import ubu_email
 from ubuntutools.question import YesNoQuestion, EditFile
-from ubuntutools.subprocess import call, check_call, Popen, PIPE
 from ubuntutools.update_maintainer import update_maintainer, restore_maintainer
 
 try:

syncpackage

@@ -20,11 +20,11 @@
 #
 # ##################################################################
 
-import codecs
 import fnmatch
 import optparse
 import os
 import shutil
+import subprocess
 import sys
 import textwrap
 import urllib.request
@@ -44,13 +44,12 @@ from ubuntutools.requestsync.mail import (
         get_debian_srcpkg as requestsync_mail_get_debian_srcpkg)
 from ubuntutools.requestsync.lp import get_debian_srcpkg, get_ubuntu_srcpkg
 from ubuntutools.version import Version
-from ubuntutools import subprocess
 
 
 def remove_signature(dscname):
     '''Removes the signature from a .dsc file if the .dsc file is signed.'''
 
-    dsc_file = codecs.open(dscname, encoding='utf-8')
+    dsc_file = open(dscname, encoding='utf-8')
     if dsc_file.readline().strip() == "-----BEGIN PGP SIGNED MESSAGE-----":
         unsigned_file = []
         # search until begin of body found
@@ -65,7 +64,7 @@ def remove_signature(dscname):
             unsigned_file.append(line)
 
         dsc_file.close()
-        dsc_file = codecs.open(dscname, "w", encoding='utf-8')
+        dsc_file = open(dscname, "w", encoding='utf-8')
         dsc_file.writelines(unsigned_file)
         dsc_file.close()
 
@@ -169,7 +168,7 @@ def sync_dsc(src_pkg, debian_dist, release, name, email, bugs, ubuntu_mirror,
 
     # read Debian distribution from debian/changelog if not specified
     if debian_dist is None:
-        line = codecs.open("debian/changelog", encoding='utf-8').readline()
+        line = open("debian/changelog", encoding='utf-8').readline()
         debian_dist = line.split(" ")[2].strip(";")
 
     if not fakesync:
@@ -199,7 +198,7 @@ def sync_dsc(src_pkg, debian_dist, release, name, email, bugs, ubuntu_mirror,
         shutil.rmtree(directory, True)
 
         # write changes file
-        changes_file = codecs.open(changes_filename, "w", encoding='utf-8')
+        changes_file = open(changes_filename, "w", encoding='utf-8')
         changes_file.writelines(changes)
         changes_file.close()
 

ubuntu-iso

@@ -21,10 +21,9 @@
 # ##################################################################
 
 import optparse
+import subprocess
 import sys
 
-from ubuntutools import subprocess
-
 
 def extract(iso, path):
     command = ['isoinfo', '-R', '-i', iso, '-x', path]

ubuntutools/archive.py

@@ -35,6 +35,7 @@ import hashlib
 import json
 import os.path
 import re
+import subprocess
 import sys
 
 from debian.changelog import Changelog, Version
@@ -46,11 +47,6 @@ from ubuntutools.config import UDTConfig
 from ubuntutools.lp.lpapicache import (Launchpad, Distribution,
                                        SourcePackagePublishingHistory)
 from ubuntutools.logger import Logger
-from ubuntutools import subprocess
-
-if sys.version_info[0] >= 3:
-    basestring = str
-    unicode = str
 
 
 class DownloadError(Exception):
@@ -587,14 +583,14 @@ class FakeSPPH(object):
         if since_version is None:
             return self._changelog
 
-        if isinstance(since_version, basestring):
+        if isinstance(since_version, str):
             since_version = Version(since_version)
 
         new_entries = []
         for block in Changelog(self._changelog):
             if block.version <= since_version:
                 break
-            new_entries.append(unicode(block))
+            new_entries.append(str(block))
         return u''.join(new_entries)
 
 

ubuntutools/builder.py

@@ -19,9 +19,9 @@
 #
 
 import os
+import subprocess
 
 from ubuntutools.logger import Logger
-from ubuntutools import subprocess
 
 
 def _build_preparation(result_directory):

ubuntutools/lp/lpapicache.py

@@ -21,8 +21,6 @@
 #
 #   Based on code written by Jonathan Davies <jpds@ubuntu.com>
 
-from __future__ import print_function
-
 # Uncomment for tracing LP API calls
 # import httplib2
 # httplib2.debuglevel = 1
@@ -44,27 +42,6 @@ from ubuntutools.lp.udtexceptions import (AlreadyLoggedInError,
                                           PocketDoesNotExistError,
                                           SeriesNotFoundException)
 
-if sys.version_info[0] >= 3:
-    basestring = str
-    unicode = str
-
-
-# Shameless steal from python-six
-def add_metaclass(metaclass):
-    """Class decorator for creating a class with a metaclass."""
-    def wrapper(cls):
-        orig_vars = cls.__dict__.copy()
-        slots = orig_vars.get('__slots__')
-        if slots is not None:
-            if isinstance(slots, str):
-                slots = [slots]
-            for slots_var in slots:
-                orig_vars.pop(slots_var)
-        orig_vars.pop('__dict__', None)
-        orig_vars.pop('__weakref__', None)
-        return metaclass(cls.__name__, cls.__bases__, orig_vars)
-    return wrapper
-
 
 __all__ = [
     'Archive',
@@ -140,15 +117,14 @@ class MetaWrapper(type):
         cls._cache = dict()
 
 
-@add_metaclass(MetaWrapper)
-class BaseWrapper(object):
+class BaseWrapper(object, metaclass=MetaWrapper):
     '''
     A base class from which other wrapper classes are derived.
     '''
     resource_type = None  # it's a base class after all
 
     def __new__(cls, data):
-        if isinstance(data, basestring) and data.startswith(str(Launchpad._root_uri)):
+        if isinstance(data, str) and data.startswith(str(Launchpad._root_uri)):
             # looks like a LP API URL
             # check if it's already cached
             cached = cls._cache.get(data)
@@ -225,7 +201,7 @@ class Distribution(BaseWrapper):
         '''
         Fetch the distribution object identified by 'dist' from LP.
         '''
-        if not isinstance(dist, basestring):
+        if not isinstance(dist, str):
             raise TypeError("Don't know what do with '%r'" % dist)
         cached = cls._cache.get(dist)
         if not cached:
@@ -385,7 +361,7 @@ class Archive(BaseWrapper):
         '''
         if pocket is None:
             pockets = frozenset(('Proposed', 'Updates', 'Security', 'Release'))
-        elif isinstance(pocket, basestring):
+        elif isinstance(pocket, str):
             pockets = frozenset((pocket,))
         else:
             pockets = frozenset(pocket)
@@ -593,14 +569,14 @@ class SourcePackagePublishingHistory(BaseWrapper):
         if since_version is None:
             return self._changelog
 
-        if isinstance(since_version, basestring):
+        if isinstance(since_version, str):
             since_version = Version(since_version)
 
         new_entries = []
         for block in Changelog(self._changelog):
             if block.version <= since_version:
                 break
-            new_entries.append(unicode(block))
+            new_entries.append(str(block))
         return u''.join(new_entries)
 
     def getBinaries(self):
@@ -719,8 +695,7 @@ class MetaPersonTeam(MetaWrapper):
         return cls._me
 
 
-@add_metaclass(MetaPersonTeam)
-class PersonTeam(BaseWrapper):
+class PersonTeam(BaseWrapper, metaclass=MetaPersonTeam):
     '''
     Wrapper class around a LP person or team object.
     '''
@@ -743,7 +718,7 @@ class PersonTeam(BaseWrapper):
         '''
         Fetch the person or team object identified by 'url' from LP.
         '''
-        if not isinstance(person_or_team, basestring):
+        if not isinstance(person_or_team, str):
             raise TypeError("Don't know what do with '%r'" % person_or_team)
         cached = cls._cache.get(person_or_team)
         if not cached:
@@ -771,9 +746,9 @@ class PersonTeam(BaseWrapper):
             raise TypeError("'%r' is not an Archive object." % archive)
         if not isinstance(distroseries, DistroSeries):
             raise TypeError("'%r' is not a DistroSeries object." % distroseries)
-        if package is not None and not isinstance(package, basestring):
+        if package is not None and not isinstance(package, str):
             raise TypeError('A source package name expected.')
-        if component is not None and not isinstance(component, basestring):
+        if component is not None and not isinstance(component, str):
             raise TypeError('A component name expected.')
         if package is None and component is None:
             raise ValueError('Either a source package name or a component has '

ubuntutools/misc.py

@@ -22,9 +22,8 @@
 #
 # ##################################################################
 
-from __future__ import print_function
-
 # Modules.
+from subprocess import Popen, PIPE
 import locale
 import os
 import sys
@@ -32,7 +31,6 @@ import sys
 import distro_info
 
 from ubuntutools.lp.udtexceptions import PocketDoesNotExistError
-from ubuntutools.subprocess import Popen, PIPE
 
 _system_distribution_chain = []
 

ubuntutools/question.py

@@ -16,20 +16,12 @@
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-from __future__ import print_function
-
-import codecs
 import tempfile
 import os
 import re
+import subprocess
 import sys
 
-import ubuntutools.subprocess
-
-if sys.version_info[0] < 3:
-    input = raw_input  # noqa, pylint: disable=undefined-variable
-    open = codecs.open
-
 
 class Question(object):
     def __init__(self, options, show_help=True):
@@ -143,8 +135,7 @@ class EditFile(object):
         done = False
         while not done:
             old_mtime = os.stat(self.filename).st_mtime
-            ubuntutools.subprocess.check_call(['sensible-editor',
-                                               self.filename])
+            subprocess.check_call(['sensible-editor', self.filename])
             modified = old_mtime != os.stat(self.filename).st_mtime
             placeholders_present = False
             if self.placeholders:

ubuntutools/requestsync/lp.py

@@ -20,8 +20,6 @@
 #   Please see the /usr/share/common-licenses/GPL-2 file for the full text
 #   of the GNU General Public License license.
 
-from __future__ import print_function
-
 import re
 
 from debian.deb822 import Changes

ubuntutools/requestsync/mail.py

@@ -20,13 +20,12 @@
 #   Please see the /usr/share/common-licenses/GPL-2 file for the full text
 #   of the GNU General Public License license.
 
-from __future__ import print_function
-
 import os
 import re
 import sys
 import smtplib
 import socket
+import subprocess
 import tempfile
 
 from debian.changelog import Changelog, Version
@@ -36,11 +35,6 @@ from ubuntutools.archive import rmadison, FakeSPPH
 from ubuntutools.lp.udtexceptions import PackageNotFoundException
 from ubuntutools.logger import Logger
 from ubuntutools.question import confirmation_prompt, YesNoQuestion
-from ubuntutools import subprocess
-
-if sys.version_info[0] >= 3:
-    basestring = str
-    unicode = str
 
 
 __all__ = [
@@ -117,7 +111,7 @@ def get_ubuntu_delta_changelog(srcpkg):
         distribution = block.distributions.split()[0].split('-')[0]
         if debian_info.valid(distribution):
             break
-        delta += [unicode(change) for change in block.changes()
+        delta += [str(change) for change in block.changes()
                   if change.strip()]
 
     return u'\n'.join(delta)

ubuntutools/sponsor_patch/patch.py

@@ -17,8 +17,8 @@
 
 import os
 import re
+import subprocess
 
-from ubuntutools import subprocess
 from ubuntutools.logger import Logger
 from ubuntutools.sponsor_patch.question import ask_for_manual_fixing
 from functools import reduce

ubuntutools/sponsor_patch/question.py

@@ -15,8 +15,6 @@
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-from __future__ import print_function
-
 import sys
 
 from ubuntutools.question import Question, YesNoQuestion

ubuntutools/sponsor_patch/source_package.py

@@ -15,16 +15,14 @@
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-from __future__ import print_function
-
 import os
 import re
+import subprocess
 import sys
 
 import debian.changelog
 import debian.deb822
 
-from ubuntutools import subprocess
 from ubuntutools.logger import Logger
 from ubuntutools.question import Question, YesNoQuestion
 

ubuntutools/sponsor_patch/sponsor_patch.py

@@ -15,18 +15,16 @@
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-from __future__ import print_function
-
 import os
 import pwd
 import shutil
+import subprocess
 import sys
 
 from distro_info import UbuntuDistroInfo
 
 from launchpadlib.launchpad import Launchpad
 
-from ubuntutools import subprocess
 from ubuntutools.logger import Logger
 from ubuntutools.update_maintainer import (update_maintainer,
                                            MaintainerUpdateException)
@@ -37,9 +35,6 @@ from ubuntutools.sponsor_patch.patch import Patch
 from ubuntutools.sponsor_patch.question import ask_for_manual_fixing
 from ubuntutools.sponsor_patch.source_package import SourcePackage
 
-if sys.version_info[0] < 3:
-    range = xrange  # noqa, pylint: disable=redefined-builtin,undefined-variable
-
 
 def is_command_available(command, check_sbin=False):
     "Is command in $PATH?"

ubuntutools/subprocess.py

@@ -1,126 +0,0 @@
-"""Drop-in replacement for subprocess with better defaults
-
-This is an API-compatible replacement for the built-in subprocess
-module whose defaults better line up with our tastes.
-
-In particular, it:
- - Adds support for the restore_signals flag if subprocess itself
-   doesn't support it
- - Adds support for the encoding flag if subprocess itself doesn't
-   support it
- - Defaults close_fds to True
-"""
-
-
-from __future__ import absolute_import
-
-import inspect
-import codecs
-import signal
-import subprocess
-import sys
-
-from subprocess import PIPE, STDOUT, CalledProcessError
-
-__all__ = ['Popen', 'call', 'check_call', 'check_output', 'CalledProcessError',
-           'PIPE', 'STDOUT']
-
-
-class Popen(subprocess.Popen):
-    def __init__(self, *args, **kwargs):
-        kwargs.setdefault('close_fds', True)
-        if sys.version_info[0] >= 3:
-            getargs = inspect.getfullargspec
-            encoding = None
-        else:
-            getargs = inspect.getargspec
-            encoding = kwargs.pop('encoding', None)
-
-        if 'restore_signals' not in getargs(subprocess.Popen.__init__)[0]:
-            given_preexec_fn = kwargs.pop('preexec_fn', None)
-            restore_signals = kwargs.pop('restore_signals', True)
-
-            def preexec_fn():
-                if restore_signals:
-                    for sig in ('SIGPIPE', 'SIGXFZ', 'SIGXFSZ'):
-                        if hasattr(signal, sig):
-                            signal.signal(getattr(signal, sig),
-                                          signal.SIG_DFL)
-
-                if given_preexec_fn:
-                    given_preexec_fn()
-            kwargs['preexec_fn'] = preexec_fn
-
-        subprocess.Popen.__init__(self, *args, **kwargs)
-        if encoding is not None:
-            for channel in ('stdin', 'stdout', 'stderr'):
-                fd = getattr(self, channel)
-                if fd is not None:
-                    setattr(self, channel, codecs.EncodedFile(fd, encoding))
-
-
-# call, check_call, and check_output are copied directly from the
-# subprocess module shipped with Python 2.7.1-5ubuntu2
-
-
-def call(*popenargs, **kwargs):
-    """Run command with arguments.  Wait for command to complete, then
-    return the returncode attribute.
-
-    The arguments are the same as for the Popen constructor.  Example:
-
-    retcode = call(["ls", "-l"])
-    """
-    return Popen(*popenargs, **kwargs).wait()
-
-
-def check_call(*popenargs, **kwargs):
-    """Run command with arguments.  Wait for command to complete.  If
-    the exit code was zero then return, otherwise raise
-    CalledProcessError.  The CalledProcessError object will have the
-    return code in the returncode attribute.
-
-    The arguments are the same as for the Popen constructor.  Example:
-
-    check_call(["ls", "-l"])
-    """
-    retcode = call(*popenargs, **kwargs)
-    if retcode:
-        cmd = kwargs.get("args")
-        if cmd is None:
-            cmd = popenargs[0]
-        raise CalledProcessError(retcode, cmd)
-    return 0
-
-
-def check_output(*popenargs, **kwargs):
-    r"""Run command with arguments and return its output as a byte string.
-
-    If the exit code was non-zero it raises a CalledProcessError.  The
-    CalledProcessError object will have the return code in the returncode
-    attribute and output in the output attribute.
-
-    The arguments are the same as for the Popen constructor.  Example:
-
-    >>> check_output(["ls", "-l", "/dev/null"])
-    'crw-rw-rw- 1 root root 1, 3 Oct 18  2007 /dev/null\n'
-
-    The stdout argument is not allowed as it is used internally.
-    To capture standard error in the result, use stderr=STDOUT.
-
-    >>> check_output(["/bin/sh", "-c",
-    ...               "ls -l non_existent_file ; exit 0"],
-    ...              stderr=STDOUT)
-    'ls: non_existent_file: No such file or directory\n'
-    """
-    if 'stdout' in kwargs:
-        raise ValueError('stdout argument not allowed, it will be overridden.')
-    process = Popen(stdout=PIPE, *popenargs, **kwargs)
-    output, unused_err = process.communicate()
-    retcode = process.poll()
-    if retcode:
-        cmd = kwargs.get("args")
-        if cmd is None:
-            cmd = popenargs[0]
-        raise CalledProcessError(retcode, cmd, output=output)
-    return output

ubuntutools/test/__init__.py

@@ -21,9 +21,6 @@ import sys
 
 import setup
 
-if sys.version_info < (2, 7):
-    import unittest2 as unittest
-else:
 import unittest
 
 

ubuntutools/test/test_archive.py

@@ -17,7 +17,6 @@
 
 import os.path
 import shutil
-import sys
 import tempfile
 from io import BytesIO
 try:
@@ -64,18 +63,11 @@ class DscVerificationTestCase(unittest.TestCase):
         fn = 'test-data/example_1.0.orig.tar.gz'
         with open(fn, 'rb') as f:
             data = f.read()
-        if sys.version_info[0] >= 3:
         last_byte = chr(data[-1] ^ 8).encode()
-        else:
-            last_byte = chr(ord(data[-1]) ^ 8)
         data = data[:-1] + last_byte
         m = mock.MagicMock(name='open', spec=open)
         m.return_value = BytesIO(data)
-        if sys.version_info[0] >= 3:
-            target = 'builtins.open'
-        else:
-            target = '__builtin__.open'
-        with mock.patch(target, m):
+        with mock.patch('builtins.open', m):
             self.assertFalse(self.dsc.verify_file(fn))
 
     def test_sha1(self):

ubuntutools/test/test_config.py

@@ -49,15 +49,9 @@ class ConfigTestCase(unittest.TestCase):
 
     def setUp(self):
         super(ConfigTestCase, self).setUp()
-        if sys.version_info[0] < 3:
-            self.assertRegex = self.assertRegexpMatches
         m = mock.mock_open()
         m.side_effect = self._fake_open
-        if sys.version_info[0] >= 3:
-            target = 'builtins.open'
-        else:
-            target = '__builtin__.open'
-        patcher = mock.patch(target, m)
+        patcher = mock.patch('builtins.open', m)
         self.addCleanup(patcher.stop)
         patcher.start()
 

ubuntutools/test/test_flake8.py

@@ -14,9 +14,9 @@
 
 """test_flake8.py - Run flake8 check"""
 
+import subprocess
 import sys
 
-from ubuntutools import subprocess
 from ubuntutools.test import get_source_files, unittest, unittest_verbosity
 
 

ubuntutools/test/test_help.py

@@ -18,10 +18,10 @@ import fcntl
 import os
 import select
 import signal
+import subprocess
 import time
 
 import setup
-from ubuntutools import subprocess
 from ubuntutools.test import unittest
 
 TIMEOUT = 10

ubuntutools/test/test_pylint.py

@@ -17,10 +17,10 @@
 
 import os
 import re
+import subprocess
 import sys
 
 from ubuntutools.test import get_source_files, unittest, unittest_verbosity
-from ubuntutools import subprocess
 
 CONFIG = os.path.join(os.path.dirname(__file__), "pylint.conf")
 

ubuntutools/test/test_update_maintainer.py

@@ -231,15 +231,9 @@ class UpdateMaintainerTestCase(unittest.TestCase):
 
     # pylint: disable=C0103
     def setUp(self):
-        if sys.version_info[0] < 3:
-            self.assertRegex = self.assertRegexpMatches
         m = mock.mock_open()
         m.side_effect = self._fake_open
-        if sys.version_info[0] >= 3:
-            target = 'builtins.open'
-        else:
-            target = '__builtin__.open'
-        patcher = mock.patch(target, m)
+        patcher = mock.patch('builtins.open', m)
         self.addCleanup(patcher.stop)
         patcher.start()
         m = mock.MagicMock(side_effect=self._fake_isfile)

ubuntutools/update_maintainer.py

@@ -14,8 +14,6 @@
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-from __future__ import print_function
-
 """This module is for updating the Maintainer field of an Ubuntu package."""
 
 import os