Use single quotes everywhere

Author: coderick14

ACedIt/main.py

@@ -2,26 +2,26 @@
 import util
 
 
-supported_sites = ["codeforces", "codechef", "hackerrank", "spoj"]
+supported_sites = ['codeforces', 'codechef', 'hackerrank', 'spoj']
 
 
 def validate_args(args):
-    if args["site"] not in supported_sites:
-        print "Sorry. ACedIt only supports %s till now." % (", ".join(supported_sites))
+    if args['site'] not in supported_sites:
+        print 'Sorry. ACedIt only supports %s till now.' % (', '.join(supported_sites))
         sys.exit(0)
 
-    if args["source"] and (args["contest"] or args["problem"] or args["force"]):
-        print "ACedIt run <source_file> doesn't support other flags"
+    if args['source'] and (args['contest'] or args['problem'] or args['force']):
+        print 'ACedIt run <source_file> doesn\'t support other flags'
         sys.exit(0)
-    elif args["source"]:
+    elif args['source']:
         return
 
-    if not args["site"] == "spoj" and args["contest"] is None:
-        print "Please specify a contest code"
+    if not args['site'] == 'spoj' and args['contest'] is None:
+        print 'Please specify a contest code'
         sys.exit(0)
 
-    if args["site"] == "spoj" and args["problem"] is None:
-        print "Please specify a problem code for Spoj"
+    if args['site'] == 'spoj' and args['problem'] is None:
+        print 'Please specify a problem code for Spoj'
         sys.exit(0)
 
 
@@ -30,11 +30,11 @@ def main():
     validate_args(args)
 
     try:
-        if args["source"]:
+        if args['source']:
             # run code
-            util.Utilities.run_solution(args["source"])
+            util.Utilities.run_solution(args['source'])
 
-        elif args["problem"] is not None:
+        elif args['problem'] is not None:
             # fetch single problem
             util.Utilities.download_problem_testcases(args)
 
@@ -44,8 +44,8 @@ def main():
 
     except KeyboardInterrupt:
         # Clean up files here
-        print "Interruped manually. Exiting gracefully."
+        print 'Interruped manually. Exiting gracefully.'
 
 
-if __name__ == "__main__":
+if __name__ == '__main__':
     main()