Port pelican to python 3.

Stays compatible with 2.x series, thanks to an unified codebase.

pelican/plugins/assets.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import unicode_literals
 """
 Asset management plugin for Pelican
 ===================================

pelican/plugins/github_activity.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import unicode_literals, print_function
 """
     Copyright (c) Marco Milanesi <kpanic@gnufunk.org>
 

pelican/plugins/gzip_cache.py

@@ -68,7 +68,7 @@ def create_gzip_file(filepath):
             logger.debug('Compressing: %s' % filepath)
             compressed = gzip.open(compressed_path, 'wb')
             compressed.writelines(uncompressed)
-        except Exception, ex:
+        except Exception as ex:
             logger.critical('Gzip compression failed: %s' % ex)
         finally:
             compressed.close()

pelican/plugins/html_rst_directive.py

@@ -1,6 +1,7 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
 from docutils import nodes
 from docutils.parsers.rst import directives, Directive
-from pelican import log
 
 """
 HTML tags for reStructuredText
@@ -52,7 +53,7 @@ class RawHtml(Directive):
     has_content = True
 
     def run(self):
-        html = u' '.join(self.content)
+        html = ' '.join(self.content)
         node = nodes.raw('', html, format='html')
         return [node]
 

pelican/plugins/initialized.py

@@ -1,7 +1,9 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals, print_function
 from pelican import signals
 
 def test(sender):
-    print "%s initialized !!" % sender
+    print("%s initialized !!" % sender)
 
 def register():
     signals.initialized.connect(test)

pelican/plugins/related_posts.py

@@ -41,8 +41,8 @@ def add_related_posts(generator, metadata):
         if len(related_posts) < 1:
             return
 
-        relation_score = dict(zip(set(related_posts), map(related_posts.count,
-                              set(related_posts))))
+        relation_score = dict(list(zip(set(related_posts), list(map(related_posts.count,
+                              set(related_posts))))))
         ranked_related = sorted(relation_score, key=relation_score.get)
 
         metadata["related_posts"] = ranked_related[:5]

pelican/plugins/sitemap.py

@@ -1,3 +1,6 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
 import collections
 import os.path
 
@@ -7,19 +10,19 @@ from codecs import open
 
 from pelican import signals, contents
 
-TXT_HEADER = u"""{0}/index.html
+TXT_HEADER = """{0}/index.html
 {0}/archives.html
 {0}/tags.html
 {0}/categories.html
 """
 
-XML_HEADER = u"""<?xml version="1.0" encoding="utf-8"?>
+XML_HEADER = """<?xml version="1.0" encoding="utf-8"?>
 <urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"
 xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
 """
 
-XML_URL = u"""
+XML_URL = """
 <url>
 <loc>{0}/{1}</loc>
 <lastmod>{2}</lastmod>
@@ -28,7 +31,7 @@ XML_URL = u"""
 </url>
 """
 
-XML_FOOTER = u"""
+XML_FOOTER = """
 </urlset>
 """
 
@@ -86,7 +89,7 @@ class SitemapGenerator(object):
                     'yearly', 'never')
 
             if isinstance(pris, dict):
-                for k, v in pris.iteritems():
+                for k, v in pris.items():
                     if k in valid_keys and not isinstance(v, (int, float)):
                         default = self.priorities[k]
                         warning("sitemap plugin: priorities must be numbers")
@@ -99,7 +102,7 @@ class SitemapGenerator(object):
                 warning("sitemap plugin: using the default values")
 
             if isinstance(chfreqs, dict):
-                for k, v in chfreqs.iteritems():
+                for k, v in chfreqs.items():
                     if k in valid_keys and v not in valid_chfreqs:
                         default = self.changefreqs[k]
                         warning("sitemap plugin: invalid changefreq `{0}'".format(v))