py3: More unicode literals porting

src/calibre/utils/podofo/__init__.py

@@ -1,18 +1,16 @@
 #!/usr/bin/env python2
 # vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
-from __future__ import print_function, with_statement
+# License: GPLv3 Copyright: 2009, Kovid Goyal <kovid at kovidgoyal.net>
+from __future__ import absolute_import, division, print_function, unicode_literals
 
-__license__   = 'GPL v3'
+import os
-__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
+import shutil
-__docformat__ = 'restructuredtext en'
-
-import os, shutil
 
 from calibre.constants import plugins, preferred_encoding
 from calibre.ebooks.metadata import authors_to_string
 from calibre.ptempfile import TemporaryDirectory
-from calibre.utils.ipc.simple_worker import fork_job, WorkerError
+from calibre.utils.ipc.simple_worker import WorkerError, fork_job
-from polyglot.builtins import unicode_type, range
+from polyglot.builtins import range, unicode_type
 
 
 def get_podofo():
@@ -24,15 +22,15 @@ def get_podofo():
 
 def prep(val):
     if not val:
-        return u''
+        return ''
     if not isinstance(val, unicode_type):
         val = val.decode(preferred_encoding, 'replace')
     return val.strip()
 
 
 def set_metadata(stream, mi):
-    with TemporaryDirectory(u'_podofo_set_metadata') as tdir:
+    with TemporaryDirectory('_podofo_set_metadata') as tdir:
-        with open(os.path.join(tdir, u'input.pdf'), 'wb') as f:
+        with open(os.path.join(tdir, 'input.pdf'), 'wb') as f:
             shutil.copyfileobj(stream, f)
         from calibre.ebooks.metadata.xmp import metadata_to_xmp_packet
         xmp_packet = metadata_to_xmp_packet(mi)
@@ -44,7 +42,7 @@ def set_metadata(stream, mi):
         except WorkerError as e:
             raise Exception('Failed to set PDF metadata in (%s): %s'%(mi.title, e.orig_tb))
         if touched:
-            with open(os.path.join(tdir, u'output.pdf'), 'rb') as f:
+            with open(os.path.join(tdir, 'output.pdf'), 'rb') as f:
                 f.seek(0, 2)
                 if f.tell() > 100:
                     f.seek(0)
@@ -59,7 +57,7 @@ def set_metadata_(tdir, title, authors, bkp, tags, xmp_packet):
     podofo = get_podofo()
     os.chdir(tdir)
     p = podofo.PDFDoc()
-    p.open(u'input.pdf')
+    p.open('input.pdf')
     title = prep(title)
     touched = False
     if title and title != p.title:
@@ -77,7 +75,7 @@ def set_metadata_(tdir, title, authors, bkp, tags, xmp_packet):
         touched = True
 
     try:
-        tags = prep(u', '.join([x.strip() for x in tags if x.strip()]))
+        tags = prep(', '.join([x.strip() for x in tags if x.strip()]))
         if tags != p.keywords:
             p.keywords = tags
             touched = True
@@ -95,7 +93,7 @@ def set_metadata_(tdir, title, authors, bkp, tags, xmp_packet):
         pass
 
     if touched:
-        p.save(u'output.pdf')
+        p.save('output.pdf')
 
     return touched
 
@@ -115,7 +113,7 @@ def delete_all_but(path, pages):
             p.delete_page(page)
 
     with open(path, 'wb') as f:
-        f.save_to_fileobj(path)
+        p.save_to_fileobj(f)
 
 
 def get_xmp_metadata(path):
@@ -143,9 +141,9 @@ def test_outline(src):
         raw = f.read()
     p.load(raw)
     total = p.page_count()
-    root = p.create_outline(u'Table of Contents')
+    root = p.create_outline('Table of Contents')
     for i in range(0, total):
-        root.create(u'Page %d'%i, i, True)
+        root.create('Page %d'%i, i, True)
     raw = p.write()
     out = '/tmp/outlined.pdf'
     with open(out, 'wb') as f:
@@ -170,7 +168,7 @@ def test_podofo():
     from calibre.ebooks.metadata.book.base import Metadata
     from calibre.ebooks.metadata.xmp import metadata_to_xmp_packet
     raw = b"%PDF-1.1\n%\xe2\xe3\xcf\xd3\n1 0 obj<</Type/Catalog/Metadata 6 0 R/Pages 2 0 R>>\nendobj\n2 0 obj<</Type/Pages/Count 1/Kids[ 3 0 R]/MediaBox[ 0 0 300 144]>>\nendobj\n3 0 obj<</Type/Page/Contents 4 0 R/Parent 2 0 R/Resources<</Font<</F1<</Type/Font/BaseFont/Times-Roman/Subtype/Type1>>>>>>>>\nendobj\n4 0 obj<</Length 55>>\nstream\n  BT\n    /F1 18 Tf\n    0 0 Td\n    (Hello World) Tj\n  ET\nendstream\nendobj\n5 0 obj<</Author(\xfe\xff\x00U\x00n\x00k\x00n\x00o\x00w\x00n)/CreationDate(D:20140919134038+05'00')/Producer(PoDoFo - http://podofo.sf.net)/Title(\xfe\xff\x00n\x00e\x00w\x00t)>>\nendobj\n6 0 obj<</Type/Metadata/Filter/FlateDecode/Length 584/Subtype/XML>>\nstream\nx\x9c\xed\x98\xcd\xb2\x930\x14\xc7\xf7}\n&.\x1d\x1ahoGa\x80\x8e\xb6\xe3x\x17ua\xaf\xe3\xd2\t\xc9i\x1b\x0b\x81&a\xc0\xfbj.|$_\xc1\xd0r\xe9\xb7V\x9d\xbb\x83\x15\x9c\x9c\xff\xff\x97\x8fs\xb2 \x18W9\xa1k\xd0V\x0cK.B\xf4\xf3\xfb\x0fdq\x16\xa2\xcf\xa3\x993\xcb'\xb0\xe2\xef\x1f%\xcc\x1f?<\xd0\xc75\xf5\x18\x1aG\xbd\xa0\xf2\xab4OA\x13\xabJ\x13\xa1\xfc*D\x84e1\xf8\xe6\xbd\x0ec\x14\xf5,+\x90l\xe1\x7f\x9c\xbek\x92\xccW\x88VZ\xe7>\xc6eY\xf6\xcba?\x93K\xecz\x9e\x87\x9d\x01\x1e\x0cl\x93a\xaboB\x93\xca\x16\xea\xc5\xd6\xa3q\x99\x82\xa2\x92\xe7\x9ag\xa2qc\xb45\xcb\x0b\x99l\xad\x18\xc5\x90@\nB+\xec\xf6]\x8c\xacZK\xe2\xac\xd0!j\xec\x8c!\xa3>\xdb\xfb=\x85\x1b\xd2\x9bD\xef#M,\xe15\xd4O\x88X\x86\xa8\xb2\x19,H\x91h\x14\x05x7z`\x81O<\x02|\x99VOBs\x9d\xc0\x7f\xe0\x05\x94\xfa\xd6)\x1c\xb1jx^\xc4\tW+\x90'\x13xK\x96\xf8Hy\x96X\xabU\x11\x7f\x05\xaa\xff\xa4=I\xab\x95T\x02\xd1\xd9)u\x0e\x9b\x0b\xcb\x8e>\x89\xb5\xc8Jqm\x91\x07\xaa-\xee\xc8{\x972=\xdd\xfa+\xe5d\xea\xb9\xad'\xa1\xfa\xdbj\xee\xd3,\xc5\x15\xc9M-9\xa6\x96\xdaD\xce6Wr\xd3\x1c\xdf3S~|\xc1A\xe2MA\x92F{\xb1\x0eM\xba?3\xdd\xc2\x88&S\xa2!\x1a8\xee\x9d\xedx\xb6\xeb=\xb8C\xff\xce\xf1\x87\xaf\xfb\xde\xe0\xd5\xc8\xf3^:#\x7f\xe8\x04\xf8L\xf2\x0fK\xcd%W\xe9\xbey\xea/\xa5\x89`D\xb2m\x17\t\x92\x822\xb7\x02(\x1c\x13\xc5)\x1e\x9c-\x01\xff\x1e\xc0\x16\xd5\xe5\r\xaaG\xcc\x8e\x0c\xff\xca\x8e\x92\x84\xc7\x12&\x93\xd6\xb3\x89\xd8\x10g\xd9\xfai\xe7\xedv\xde6-\x94\xceR\x9bfI\x91\n\x85\x8e}nu9\x91\xcd\xefo\xc6+\x90\x1c\x94\xcd\x05\x83\xea\xca\xd17\x16\xbb\xb6\xfc\xa22\xa9\x9bn\xbe0p\xfd\x88wAs\xc3\x9a+\x19\xb7w\xf2a#=\xdf\xd3A:H\x07\xe9 \x1d\xa4\x83t\x90\x0e\xd2A:H\x07yNH/h\x7f\xd6\x80`!*\xd18\xfa\x05\x94\x80P\xb0\nendstream\nendobj\nxref\n0 7\n0000000000 65535 f \n0000000015 00000 n \n0000000074 00000 n \n0000000148 00000 n \n0000000280 00000 n \n0000000382 00000 n \n0000000522 00000 n \ntrailer\n<</ID[<4D028D512DEBEFD964756764AD8FF726><4D028D512DEBEFD964756764AD8FF726>]/Info 5 0 R/Root 1 0 R/Size 7>>\nstartxref\n1199\n%%EOF\n"  # noqa
-    mi = Metadata(u'title1', [u'author1'])
+    mi = Metadata('title1', ['author1'])
     xmp_packet = metadata_to_xmp_packet(mi)
     podofo = get_podofo()
     p = podofo.PDFDoc()