Changes between Version 50 and Version 51 of DeveloperGuidelines/Py_2_3

Timestamp:

07/05/19 22:41:58 (6 years ago)

Author:

Dominic König

Comment:

--

DeveloperGuidelines/Py_2_3

@@ -178 +178 @@
 if k in d:
 }}}
-=== Map and Zip return generators ===
-
-In Python-3, the {{{map()}}} and {{{zip()}}} functions return generator objects rather than lists. This is fine when we want to iterate over the result, especially when there is a chance to break out of the loop early.
+=== Map, Filter and Zip return generators ===
+
+In Python-3, the {{{map()}}}, {{{filter}}} and {{{zip()}}} functions return generator objects rather than lists. This is fine when we want to iterate over the result, especially when there is a chance to break out of the loop early.
 
 But where lists are required, the return value must be converted explicitly using the list constructor.
@@ -195 +195 @@
 }}}
 
-'''NB''' For building a list from a single iterable argument, we prefer list comprehensions over {{{map()}}} for readability and speed.
-
+'''NB''' For building a list from a single iterable argument, we prefer list comprehensions over {{{map()}}} or {{{filter()}}} for readability and speed.
 === Don't unicode.encode ===