Basic fixups for python3

src/mako/cli/lib/argparse.mako

@@ -16,7 +16,7 @@
             return 'None'
         if isinstance(v, bool):
             v = v and 'true' or 'false'
-        elif isinstance(v, basestring):
+        elif isinstance(v, str):
             v = 'r##"%s"##' % v
         elif isinstance(v, list):
             v = 'vec![%s]' % ','.join('UploadProtocol::%s' % p.capitalize() for p in v)

src/mako/deps.mako

@@ -4,7 +4,7 @@
 
 <%
 	import os
-	import urllib2
+	import urllib
 	import json
 
 	apis = {}
@@ -23,7 +23,7 @@
 
 	if os.environ.get('FETCH_APIS') is not None:
 		discovery_url = 'https://www.googleapis.com/discovery/v1/'
-		apis = json.loads(urllib2.urlopen(discovery_url + "apis").read())
+		apis = json.loads(urllib.request.urlopen(discovery_url + "apis").read())
 
 		print('Loaded {} apis from Google'.format(len(apis['items'])))
 
@@ -98,8 +98,9 @@
 			api_info.append((api_target, api_clean, api_cargo, api_doc, api_crate_publish_file, gen_root))
 
 			space_join = lambda i: ' '.join(a[i] for a in api_info)
-	except:
+	except Exception as e:
 		print('Could not open JSON file at {}'.format(api_json))
+		print(e)
 %>\
 ${api_common}: $(RUST_SRC)/${make.id}/cmn.rs $(lastword $(MAKEFILE_LIST)) ${gen_root_stamp}
 	@ echo "// COPY OF '$<'"  > $@

src/mako/lib/util.py

@@ -847,7 +847,7 @@ def library_to_crate_name(name, suffix=''):
 
 # return version like 0.1.0+2014031421
 def crate_version(build_version, revision):
-    return '%s+%s' % (build_version, isinstance(revision, basestring) and revision or '00000000')
+    return '%s+%s' % (build_version, isinstance(revision, str) and revision or '00000000')
 
 # return a crate name for us in extern crate statements
 def to_extern_crate_name(crate_name):