Initial commit: Core packages

odoo-bringout-oca-ocb-base/odoo/tools/pycompat.py

@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+#pylint: disable=deprecated-module
+import csv
+import codecs
+import io
+
+_reader = codecs.getreader('utf-8')
+_writer = codecs.getwriter('utf-8')
+
+
+def csv_reader(stream, **params):
+    assert not isinstance(stream, io.TextIOBase),\
+        "For cross-compatibility purposes, csv_reader takes a bytes stream"
+    return csv.reader(_reader(stream), **params)
+
+
+def csv_writer(stream, **params):
+    assert not isinstance(stream, io.TextIOBase), \
+        "For cross-compatibility purposes, csv_writer takes a bytes stream"
+    return csv.writer(_writer(stream), **params)
+
+
+def to_text(source):
+    """ Generates a text value (an instance of text_type) from an arbitrary
+    source.
+
+    * False and None are converted to empty strings
+    * text is passed through
+    * bytes are decoded as UTF-8
+    * rest is textified via the current version's relevant data model method
+    """
+    if source is None or source is False:
+        return u''
+
+    if isinstance(source, bytes):
+        return source.decode('utf-8')
+
+    if isinstance(source, str):
+        return source
+
+    return str(source)