-

cool-RR · cool-RR · commit 235f267010d5 · 2013-08-19T17:05:30.000+03:00
diff --git a/python_toolbox/misc_tools/__init__.py b/python_toolbox/misc_tools/__init__.py
@@ -7,6 +7,7 @@
     is_subclass, get_mro_depth_of_method, frange, getted_vars,
     _ascii_variable_pattern, is_legal_ascii_variable_name,
     is_magic_variable_name, get_actual_type, is_number, identity_function,
-    do_nothing, OwnNameDiscoveringDescriptor, find_clear_place_on_circle
+    do_nothing, OwnNameDiscoveringDescriptor, find_clear_place_on_circle,
+    general_sum, general_product
 )
 from . import name_mangling
diff --git a/python_toolbox/misc_tools/misc_tools.py b/python_toolbox/misc_tools/misc_tools.py
@@ -5,6 +5,7 @@
 
 from __future__ import division
 
+import operator
 import os.path
 import re
 import math
@@ -238,4 +239,19 @@ def add_extension_if_plain(path, extension):
         return path
     else: # not existing_extension
         return without_extension + extension
+    
+    
+def general_sum(things, start=None):
+    if start is None:
+        return reduce(operator.add, things)
+    else:
+        return reduce(operator.add, things, start)
+    
+    
+def general_product(things, start=None):
+    if start is None:
+        return reduce(operator.mul, things)
+    else:
+        return reduce(operator.mul, things, start)
+
     
diff --git a/test_python_toolbox/test_misc_tools/test_general_product.py b/test_python_toolbox/test_misc_tools/test_general_product.py
@@ -0,0 +1,14 @@
+# Copyright 2009-2013 Ram Rachum.
+# This program is distributed under the MIT license.
+
+from python_toolbox.misc_tools import general_product
+
+
+def test():
+    assert general_product((1, 2, 3)) == 6
+    assert general_product((1, 2, 3, 4)) == 24
+    assert general_product(((0, 1), 2, 3)) == (0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
+                                               1)
+    assert general_product((2, 3), start=(0, 1)) == (0, 1, 0, 1, 0, 1, 0, 1, 0,
+                                                     1, 0, 1)
+    
diff --git a/test_python_toolbox/test_misc_tools/test_general_sum.py b/test_python_toolbox/test_misc_tools/test_general_sum.py
@@ -0,0 +1,14 @@
+# Copyright 2009-2013 Ram Rachum.
+# This program is distributed under the MIT license.
+
+from python_toolbox.misc_tools import general_sum
+
+
+def test():
+    assert general_sum((1, 2, 3)) == 6
+    assert general_sum((1, 2, 3, 4)) == 10
+    assert general_sum(('abra', 'ca', 'dabra')) == 'abracadabra'
+    assert general_sum(((0, 1), (0, 2), (0, 3))) == (0, 1, 0, 2, 0, 3)
+    
+    assert general_sum(((0, 1), (0, 2), (0, 3)), start=(9,)) == (9, 0, 1, 0,
+                                                                 2, 0, 3)

Original file line number	Diff line number	Diff line change
`@@ -7,6 +7,7 @@`
`7`	`7`	`is_subclass, get_mro_depth_of_method, frange, getted_vars,`
`8`	`8`	`_ascii_variable_pattern, is_legal_ascii_variable_name,`
`9`	`9`	`is_magic_variable_name, get_actual_type, is_number, identity_function,`
`10`		`- do_nothing, OwnNameDiscoveringDescriptor, find_clear_place_on_circle`
	`10`	`+ do_nothing, OwnNameDiscoveringDescriptor, find_clear_place_on_circle,`
	`11`	`+ general_sum, general_product`
`11`	`12`	`)`
`12`	`13`	`from . import name_mangling`