python: Import from __future__ to align behavior of Python 2.7.

--
Signed-off-by: Justus Winter <justus@g10code.com>

lang/python/examples/assuan.py

@@ -17,6 +17,9 @@
 
 """Demonstrate the use of the Assuan protocol engine"""
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import pyme
 
 with pyme.Context(protocol=pyme.constants.PROTOCOL_ASSUAN) as c:

lang/python/examples/decryption-filter.py

@@ -24,6 +24,9 @@ be used like this:
 
 """
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import pyme
 pyme.Context().decrypt(sys.stdin, sink=sys.stdout)

lang/python/examples/delkey.py

@@ -19,6 +19,9 @@
 # Sample of key deletion
 # It deletes keys for joe@example.org generated by genkey.py script
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import pyme
 
 with pyme.Context() as c:

lang/python/examples/encrypt-to-all.py

@@ -22,6 +22,9 @@ This program will try to encrypt a simple message to each key on your
 keyring.  If your keyring has any invalid keys on it, those keys will
 be skipped and it will re-try the encryption."""
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import os
 import pyme

lang/python/examples/exportimport.py

@@ -19,6 +19,9 @@
 # Sample of export and import of keys
 # It uses keys for joe+pyme@example.org generated by genkey.py script
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import os
 import pyme

lang/python/examples/genkey.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import pyme
 
 # This is the example from the GPGME manual.

lang/python/examples/inter-edit.py

@@ -18,6 +18,9 @@
 
 """Simple interactive editor to test editor scripts"""
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import pyme
 import pyme.constants.status

lang/python/examples/sign.py

@@ -16,6 +16,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import pyme
 from pyme.constants.sig import mode

lang/python/examples/signverify.py

@@ -19,6 +19,9 @@
 # Sample of unattended signing/verifying of a message.
 # It uses keys for joe+pyme@example.org generated by genkey.py script
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import os
 import pyme

lang/python/examples/simple.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import os
 import pyme

lang/python/examples/testCMSgetkey.py

@@ -18,6 +18,9 @@
 
 """A test applicaton for the CMS protocol."""
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import pyme
 

lang/python/examples/verifydetails.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import os
 from pyme import core

lang/python/gpgme-h-clean.py

@@ -17,6 +17,9 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys, re
 
 if len(sys.argv) != 2:

lang/python/pyme/__init__.py

@@ -99,6 +99,9 @@ GPGME documentation: https://www.gnupg.org/documentation/manuals/gpgme/
 
 """
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from . import core
 from . import errors
 from . import constants

lang/python/pyme/callbacks.py

@@ -15,6 +15,9 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from getpass import getpass
 
 def passphrase_stdin(hint, desc, prev_bad, hook=None):

lang/python/pyme/constants/__init__.py

@@ -1,4 +1,7 @@
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_', globals())
 

lang/python/pyme/constants/data/__init__.py

@@ -1,3 +1,6 @@
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from . import encoding
 __all__ = ['encoding']

lang/python/pyme/constants/data/encoding.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_DATA_ENCODING_', globals())

lang/python/pyme/constants/event.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_EVENT_', globals())

lang/python/pyme/constants/import.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_IMPORT_', globals())

lang/python/pyme/constants/keylist/__init__.py

@@ -1,3 +1,6 @@
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from . import mode
 __all__ = ['mode']

lang/python/pyme/constants/keylist/mode.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_KEYLIST_MODE_', globals())

lang/python/pyme/constants/md.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_MD_', globals())

lang/python/pyme/constants/pk.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_PK_', globals())

lang/python/pyme/constants/protocol.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_PROTOCOL_', globals())

lang/python/pyme/constants/sig/__init__.py

@@ -1,3 +1,6 @@
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from . import mode
 __all__ = ['mode']

lang/python/pyme/constants/sig/mode.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_SIG_MODE_', globals())

lang/python/pyme/constants/sigsum.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_SIGSUM_', globals())

lang/python/pyme/constants/status.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_STATUS_', globals())

lang/python/pyme/constants/validity.py

@@ -15,5 +15,8 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import util
 util.process_constants('GPGME_VALIDITY_', globals())

lang/python/pyme/core.py

@@ -24,6 +24,9 @@ and the 'Data' class describing buffers of data.
 
 """
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import re
 import os
 import weakref

lang/python/pyme/errors.py

@@ -15,6 +15,9 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from . import gpgme
 from . import util
 

lang/python/pyme/results.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 """Robust result objects
 
 Results returned by the underlying library are fragile, i.e. they are

lang/python/pyme/util.py

@@ -16,6 +16,9 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 
 def process_constants(prefix, scope):

lang/python/pyme/version.py.in

@@ -16,6 +16,9 @@
 # License along with this library; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
+from __future__ import absolute_import, print_function
+del absolute_import, print_function
+
 from . import gpgme
 
 productname = 'pyme'

lang/python/tests/final.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import os
 import subprocess
 

lang/python/tests/initial.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import os
 import subprocess
 import pyme

lang/python/tests/support.py

@@ -15,6 +15,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import os
 from pyme import core

lang/python/tests/t-callbacks.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import os
 from pyme import core, constants
 import support

lang/python/tests/t-data.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import io
 import os
 import tempfile

lang/python/tests/t-decrypt-verify.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import pyme
 from pyme import core, constants, errors
 import support

lang/python/tests/t-decrypt.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import pyme
 from pyme import core, constants
 import support

lang/python/tests/t-edit.py

@@ -18,6 +18,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import os
 from pyme import core, constants

lang/python/tests/t-encrypt-large.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import random
 from pyme import core, constants

lang/python/tests/t-encrypt-sign.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import pyme
 from pyme import core, constants

lang/python/tests/t-encrypt-sym.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import os
 import pyme
 from pyme import core, constants

lang/python/tests/t-encrypt.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import pyme
 from pyme import core, constants
 import support

lang/python/tests/t-export.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import core, constants
 import support
 

lang/python/tests/t-file-name.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import os
 from pyme import core, constants
 import support

lang/python/tests/t-idiomatic.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import io
 import os

lang/python/tests/t-import.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import core, constants
 import support
 

lang/python/tests/t-keylist.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import core, constants
 import support
 

lang/python/tests/t-protocol-assuan.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import pyme
 
 with pyme.Context(protocol=pyme.constants.PROTOCOL_ASSUAN) as c:

lang/python/tests/t-sig-notation.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import os
 from pyme import core, constants
 import support

lang/python/tests/t-sign.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import os
 import pyme
 from pyme import core, constants

lang/python/tests/t-signers.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import pyme
 from pyme import core, constants
 import support

lang/python/tests/t-trustlist.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 from pyme import core, constants
 import support
 

lang/python/tests/t-verify.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import sys
 import os
 import pyme

lang/python/tests/t-wait.py

@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
 import time
 from pyme import core, constants, errors
 import support