diff -r e24793fae424 -r 1b734faab67a mod_util.py
--- a/mod_util.py	Tue Aug 11 19:12:30 2015 +0300
+++ b/mod_util.py	Sun Aug 16 10:59:22 2015 +0300
@@ -29,7 +29,6 @@
 from __future__ import print_function
 import math
 import json
-import subprocess
 import re
 from modulecore import command_error
 import modulecore as ModuleCore
@@ -210,28 +209,6 @@
 
 def cmd_calc (bot, reply, args, **rest):
 	reply (calc.Calculator().calc (args['expression']))
-	# expr = args['expression']
-	# try:
-		# Substitute some mathematical constants
-		# expr = mathsubstitute (expr, 'pi' , 3.14159265358979323846264338327950288419716939937510)
-		# expr = mathsubstitute (expr, 'e'  , 2.71828182845904523536028747135266249775724709369995)
-		# expr = mathsubstitute (expr, 'phi', 1.6180339887498948482) # golden ratio
-
-		# result = subprocess.check_output (['calc', '--', expr], stderr=subprocess.STDOUT) \
-			# .replace ('\t', '') \
-			# .replace ('\n', '')
-
-		# errmatch = re.compile (r'^.*\bError\b.*$').match (result)
-
-		# if errmatch:
-			# command_error ('math error')
-			# return
-
-		# reply ('Result: %s' % result)
-	# except subprocess.CalledProcessError as e:
-		# command_error (e.output.split('\n')[0])
-	# except OSError as e:
-		# command_error ('failed to execute calc: ' + e.strerror)
 
 def cmd_more (commandObject, **rest):
 	ModuleCore.print_responses (commandObject)