Modernize Python 2 code to get ready for Python 3

bin/proxy.py

@@ -8,6 +8,7 @@ It caches the answers and handles various data sources transforming their
 answers into format supported by the wttr.in service.
 
 """
+from __future__ import print_function
 
 from gevent.pywsgi import WSGIServer
 from gevent.monkey import patch_all
@@ -90,7 +91,7 @@ def translate(text, lang):
     """
     translated = TRANSLATIONS.get(lang, {}).get(text, text)
     if text.encode('utf-8') == translated:
-        print "%s: %s" % (lang, text)
+        print("%s: %s" % (lang, text))
     return translated
 
 def cyr(to_translate):
@@ -111,9 +112,9 @@ def add_translations(content, lang):
     try:
         d = json.loads(content)         # pylint: disable=invalid-name
     except ValueError as exception:
-        print "---"
-        print exception
-        print "---"
+        print("---")
+        print(exception)
+        print("---")
 
     try:
         weather_condition = d['data']['current_condition'][0]['weatherDesc'][0]['value']
@@ -159,7 +160,7 @@ def add_translations(content, lang):
 
         content = json.dumps(d)
     except (IndexError, ValueError) as exception:
-        print exception
+        print(exception)
     return content
 
 @APP.route("/<path:path>")
@@ -176,7 +177,7 @@ def proxy(path):
     if content is None:
         srv = _find_srv_for_query(path, query_string)
         url = '%s/%s?%s' % (srv, path, query_string)
-        print url
+        print(url)
 
         attempts = 5
         while attempts:

lib/globals.py

@@ -1,6 +1,7 @@
 """
 global configuration of the project
 """
+from __future__ import print_function
 
 import logging
 import os
@@ -76,7 +77,7 @@ def error(text):
     "log error `text` and raise a RuntimeError exception"
 
     if not text.startswith('Too many queries'):
-        print text
+        print(text)
     logging.error("ERROR %s", text)
     raise RuntimeError(text)
 
@@ -84,7 +85,7 @@ def log(text):
     "log error `text` and do not raise any exceptions"
 
     if not text.startswith('Too many queries'):
-        print text
+        print(text)
         logging.info(text)
 
 def debug_log(text):

lib/location.py

@@ -7,6 +7,7 @@ and basing on this information generates
 precise location description.
 
 """
+from __future__ import print_function
 
 import os
 import json
@@ -67,7 +68,7 @@ def geolocator(location):
     try:
         geo = requests.get('%s/%s' % (GEOLOCATOR_SERVICE, location)).text
     except requests.exceptions.ConnectionError as exception:
-        print "ERROR: %s" % exception
+        print("ERROR: %s" % exception)
         return None
 
     if geo == "":
@@ -77,7 +78,7 @@ def geolocator(location):
         answer = json.loads(geo.encode('utf-8'))
         return answer
     except ValueError as exception:
-        print "ERROR: %s" % exception
+        print("ERROR: %s" % exception)
         return None
 
     return None

lib/unicodedata2.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 from unicodedata import *
 
 script_data = {
@@ -599,7 +600,7 @@ def _compile_scripts_txt():
             idx.append((int(a, 16), int(b or a, 16), names.index(name), cats.index(cat)))
     idx.sort()
 
-    print 'script_data = {\n"names":%s,\n"cats":%s,\n"idx":[\n%s\n]}' % (
+    print('script_data = {\n"names":%s,\n"cats":%s,\n"idx":[\n%s\n]}' % (
         '\n'.join(textwrap.wrap(repr(names), 80)),
         '\n'.join(textwrap.wrap(repr(cats), 80)),
-        '\n'.join(textwrap.wrap(', '.join('(0x%x,0x%x,%d,%d)' % c for c in idx), 80)))        
+        '\n'.join(textwrap.wrap(', '.join('(0x%x,0x%x,%d,%d)' % c for c in idx), 80))))        

lib/wttr.py

@@ -1,5 +1,6 @@
 # vim: set encoding=utf-8
 
+from __future__ import print_function
 import gevent
 from gevent.pywsgi import WSGIServer
 from gevent.queue import Queue
@@ -119,7 +120,7 @@ def get_wetter(location, ip, html=False, lang=None, query=None, location_name=No
             p = Popen(cmd, stdout=PIPE, stderr=PIPE)
             stdout, stderr = p.communicate()
             if p.returncode != 0:
-                print "ERROR: location not found: %s" % location
+                print("ERROR: location not found: %s" % location)
                 if 'Unable to find any matching weather location to the query submitted' in stderr:
                     if location != NOT_FOUND_LOCATION:
                         NOT_FOUND_MESSAGE_HEADER = u"ERROR: %s: %s\n---\n\n" % (get_message('UNKNOWN_LOCATION', lang), location)

lib/wttr_srv.py

@@ -163,7 +163,7 @@ def wttr(location, request):
 
     try:
         LIMITS.check_ip(ip_addr)
-    except RuntimeError, exception:
+    except RuntimeError as exception:
         return str(exception)
 
     png_filename = None
@@ -249,7 +249,7 @@ def wttr(location, request):
                 output += '\n' + get_message('FOLLOW_ME', lang).encode('utf-8') + '\n'
         return output
 
-    except RuntimeError, exception:
+    except RuntimeError as exception:
         if 'Malformed response' in str(exception) \
                 or 'API key has reached calls per day allowed limit' in str(exception):
             if html_output:

lib/wttrin_png.py

@@ -1,6 +1,7 @@
 #!/usr/bin/python
 #vim: encoding=utf-8
 
+from __future__ import print_function
 import sys
 import os
 import re
@@ -287,9 +288,9 @@ def make_wttr_in_png(png_name, options=None):
     """
 
     parsed = parse_wttrin_png_name(png_name)
-    print "------"
-    print parsed
-    print "------"
+    print("------")
+    print(parsed)
+    print("------")
 
     # if location is MyLocation it should be overriden 
     # with autodetected location (from options)
@@ -301,7 +302,7 @@ def make_wttr_in_png(png_name, options=None):
             if key not in parsed:
                 parsed[key] = val
     url = make_wttrin_query(parsed)
-    print "URL = ", url
+    print("URL = ", url)
 
     timestamp = time.strftime("%Y%m%d%H", time.localtime())
     cached_basename = url[14:].replace('/','_')