Updated DB_Helper by adding firebase methods.

venv/Lib/site-packages/requests_toolbelt/utils/formdata.py

@@ -0,0 +1,108 @@
+# -*- coding: utf-8 -*-
+"""Implementation of nested form-data encoding function(s)."""
+from .._compat import basestring
+from .._compat import urlencode as _urlencode
+
+
+__all__ = ('urlencode',)
+
+
+def urlencode(query, *args, **kwargs):
+    """Handle nested form-data queries and serialize them appropriately.
+
+    There are times when a website expects a nested form data query to be sent
+    but, the standard library's urlencode function does not appropriately
+    handle the nested structures. In that case, you need this function which
+    will flatten the structure first and then properly encode it for you.
+
+    When using this to send data in the body of a request, make sure you
+    specify the appropriate Content-Type header for the request.
+
+    .. code-block:: python
+
+        import requests
+        from requests_toolbelt.utils import formdata
+
+        query = {
+           'my_dict': {
+               'foo': 'bar',
+               'biz': 'baz",
+            },
+            'a': 'b',
+        }
+
+        resp = requests.get(url, params=formdata.urlencode(query))
+        # or
+        resp = requests.post(
+            url,
+            data=formdata.urlencode(query),
+            headers={
+                'Content-Type': 'application/x-www-form-urlencoded'
+            },
+        )
+
+    Similarly, you can specify a list of nested tuples, e.g.,
+
+    .. code-block:: python
+
+        import requests
+        from requests_toolbelt.utils import formdata
+
+        query = [
+            ('my_list', [
+                ('foo', 'bar'),
+                ('biz', 'baz'),
+            ]),
+            ('a', 'b'),
+        ]
+
+        resp = requests.get(url, params=formdata.urlencode(query))
+        # or
+        resp = requests.post(
+            url,
+            data=formdata.urlencode(query),
+            headers={
+                'Content-Type': 'application/x-www-form-urlencoded'
+            },
+        )
+
+    For additional parameter and return information, see the official
+    `urlencode`_ documentation.
+
+    .. _urlencode:
+        https://docs.python.org/3/library/urllib.parse.html#urllib.parse.urlencode
+    """
+    expand_classes = (dict, list, tuple)
+    original_query_list = _to_kv_list(query)
+
+    if not all(_is_two_tuple(i) for i in original_query_list):
+        raise ValueError("Expected query to be able to be converted to a "
+                         "list comprised of length 2 tuples.")
+
+    query_list = original_query_list
+    while any(isinstance(v, expand_classes) for _, v in query_list):
+        query_list = _expand_query_values(query_list)
+
+    return _urlencode(query_list, *args, **kwargs)
+
+
+def _to_kv_list(dict_or_list):
+    if hasattr(dict_or_list, 'items'):
+        return list(dict_or_list.items())
+    return dict_or_list
+
+
+def _is_two_tuple(item):
+    return isinstance(item, (list, tuple)) and len(item) == 2
+
+
+def _expand_query_values(original_query_list):
+    query_list = []
+    for key, value in original_query_list:
+        if isinstance(value, basestring):
+            query_list.append((key, value))
+        else:
+            key_fmt = key + '[%s]'
+            value_list = _to_kv_list(value)
+            query_list.extend((key_fmt % k, v) for k, v in value_list)
+    return query_list