Changes between Version 10 and Version 11 of DeveloperGuidelines/Py_2_3

Timestamp:

06/26/19 19:19:46 (6 years ago)

Author:

Dominic König

Comment:

--

DeveloperGuidelines/Py_2_3

@@ -92 +92 @@
 ||basestring||{{{from s3compat import basestring}}}|| ||
 ||INTEGER_TYPES||{{{from s3compat import INTEGER_TYPES}}}||maps to tuple of all known integer types: (int,long) in Py2, (int,) in Py3), for use with {{{isinstance}}}||
+
+=== No dict.iteritems ===
+
+Python-3 does not support {{{dict.iteritems()}}}. We use {{{dict.items()}}} instead:
+
+{{{#!Python
+# Deprecated
+for x, y in d.iteritems():
+# Accepted
+for x, y in d.items():
+}}}
+
+NB In Python-2, {{{dict.items()}}} returns a list of tuples, but in Python-3 it returns a dict view object that is sensitive to changes of the dict. If a list is required, or the dict is changed inside the loop, the result of {{{dict.items()}}} must be converted into a list explicitly.