Removing unneeded from __future__ import statements.

Since we are on Python 3.6 and up, we don't need those anymore.

ebook_converter/customize/__init__.py

@@ -1,13 +1,13 @@
-from __future__ import absolute_import, division, print_function, unicode_literals
-__license__   = 'GPL v3'
-__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
-
 import os, sys, zipfile, importlib
 
 from ebook_converter.constants import numeric_version, iswindows, isosx
 from ebook_converter.ptempfile import PersistentTemporaryFile
 from ebook_converter.polyglot.builtins import unicode_type
 
+
+__license__   = 'GPL v3'
+__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
+
 platform = 'linux'
 if iswindows:
     platform = 'windows'

ebook_converter/customize/builtins.py

@@ -1,10 +1,5 @@
-# -*- coding: utf-8 -*-
-from __future__ import absolute_import, division, print_function, unicode_literals
-
-__license__   = 'GPL v3'
-__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
-
 import os, glob, re
+
 from ebook_converter import guess_type
 from ebook_converter.customize import (FileTypePlugin, MetadataReaderPlugin,
     MetadataWriterPlugin, PreferencesPlugin, InterfaceActionBase, StoreBase)
@@ -12,6 +7,10 @@ from ebook_converter.constants import numeric_version
 from ebook_converter.ebooks.metadata.archive import ArchiveExtract, KPFExtract, get_comic_metadata
 from ebook_converter.ebooks.html.to_zip import HTML2ZIP
 
+
+__license__   = 'GPL v3'
+__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
+
 plugins = []
 
 # To archive plugins {{{
@@ -1945,7 +1944,6 @@ if __name__ == '__main__':
     try:
         subprocess.check_call(['python', '-c', textwrap.dedent(
         '''
-        from __future__ import print_function
         import time, sys, init_calibre
         st = time.time()
         import ebook_converter.customize.builtins

ebook_converter/customize/conversion.py

@@ -1,8 +1,6 @@
-# -*- coding: utf-8 -*-
-from __future__ import absolute_import, division, print_function, unicode_literals
-'''
+"""
 Defines the plugin system for conversions.
-'''
+"""
 import re, os, shutil, numbers
 
 from ebook_converter import CurrentDir

ebook_converter/customize/profiles.py

@@ -1,12 +1,10 @@
-# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
-from __future__ import absolute_import, division, print_function, unicode_literals
+from ebook_converter.customize import Plugin as _Plugin
+from ebook_converter.polyglot.builtins import zip
+
 __license__ = 'GPL 3'
 __copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
-from ebook_converter.customize import Plugin as _Plugin
-from ebook_converter.polyglot.builtins import zip
-
 FONT_SIZES = [('xx-small', 1),
               ('x-small',  None),
               ('small',    2),

ebook_converter/customize/ui.py

@@ -1,7 +1,3 @@
-from __future__ import absolute_import, division, print_function, unicode_literals
-__license__   = 'GPL v3'
-__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
-
 import os, shutil, traceback, functools, sys
 from collections import defaultdict
 from itertools import chain
@@ -24,6 +20,10 @@ from ebook_converter.utils.config import (make_config_dir, Config, ConfigProxy,
 from ebook_converter.constants import DEBUG, numeric_version
 from ebook_converter.polyglot.builtins import iteritems, itervalues, unicode_type
 
+
+__license__   = 'GPL v3'
+__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
+
 builtin_names = frozenset(p.name for p in builtin_plugins)
 BLACKLISTED_PLUGINS = frozenset({'Marvin XD', 'iOS reader applications'})
 

ebook_converter/customize/zipplugin.py

@@ -1,11 +1,8 @@
-#!/usr/bin/env python2
-# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
-from __future__ import absolute_import, division, print_function, unicode_literals
-
-__license__   = 'GPL v3'
-__copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
-__docformat__ = 'restructuredtext en'
-
+"""
+PEP 302 based plugin loading mechanism, works around the bug in zipimport in
+python 2.x that prevents importing from zip files in locations whose paths
+have non ASCII characters
+"""
 import os, zipfile, posixpath, importlib, threading, re, imp, sys
 from collections import OrderedDict
 from functools import partial
@@ -17,9 +14,10 @@ from ebook_converter.customize import (Plugin, numeric_version, platform,
 from ebook_converter.polyglot.builtins import (itervalues, map, string_or_bytes,
         unicode_type, reload)
 
-# PEP 302 based plugin loading mechanism, works around the bug in zipimport in
-# python 2.x that prevents importing from zip files in locations whose paths
-# have non ASCII characters
+
+__license__   = 'GPL v3'
+__copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
+__docformat__ = 'restructuredtext en'
 
 
 def get_resources(zfp, name_or_list_of_names):