Changeset 9372 for main/waeup.kofa/trunk/src/waeup/kofa/utils/helpers.py

Timestamp:

21 Oct 2012, 10:43:54 (12 years ago)

Author:

uli

Message:

Add a helper to provide a (Python 3 compatible) product calculator for sequences of numbers.

File:

• main/waeup.kofa/trunk/src/waeup/kofa/utils/helpers.py (modified) (1 diff)

main/waeup.kofa/trunk/src/waeup/kofa/utils/helpers.py

@@ -685 +685 @@
         writer.writerow(row)
     return tmp_path
+
+def product(sequence, start=1):
+    """Returns the product of a sequence of numbers (_not_ strings)
+    multiplied by the parameter `start` (defaults to 1). If the
+    sequence is empty, returns 0.
+    """
+    if not len(sequence):
+        return 0
+    result = start
+    for item in sequence:
+        result *= item
+    return result