structure saas with tools

.venv/lib/python3.10/site-packages/huggingface_hub/utils/_datetime.py

@@ -0,0 +1,67 @@
+# coding=utf-8
+# Copyright 2022-present, the HuggingFace Inc. team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Contains utilities to handle datetimes in Huggingface Hub."""
+
+from datetime import datetime, timezone
+
+
+def parse_datetime(date_string: str) -> datetime:
+    """
+    Parses a date_string returned from the server to a datetime object.
+
+    This parser is a weak-parser is the sense that it handles only a single format of
+    date_string. It is expected that the server format will never change. The
+    implementation depends only on the standard lib to avoid an external dependency
+    (python-dateutil). See full discussion about this decision on PR:
+    https://github.com/huggingface/huggingface_hub/pull/999.
+
+    Example:
+        ```py
+        > parse_datetime('2022-08-19T07:19:38.123Z')
+        datetime.datetime(2022, 8, 19, 7, 19, 38, 123000, tzinfo=timezone.utc)
+        ```
+
+    Args:
+        date_string (`str`):
+            A string representing a datetime returned by the Hub server.
+            String is expected to follow '%Y-%m-%dT%H:%M:%S.%fZ' pattern.
+
+    Returns:
+        A python datetime object.
+
+    Raises:
+        :class:`ValueError`:
+            If `date_string` cannot be parsed.
+    """
+    try:
+        # Normalize the string to always have 6 digits of fractional seconds
+        if date_string.endswith("Z"):
+            # Case 1: No decimal point (e.g., "2024-11-16T00:27:02Z")
+            if "." not in date_string:
+                # No fractional seconds - insert .000000
+                date_string = date_string[:-1] + ".000000Z"
+            # Case 2: Has decimal point (e.g., "2022-08-19T07:19:38.123456789Z")
+            else:
+                # Get the fractional and base parts
+                base, fraction = date_string[:-1].split(".")
+                # fraction[:6] takes first 6 digits and :0<6 pads with zeros if less than 6 digits
+                date_string = f"{base}.{fraction[:6]:0<6}Z"
+
+        return datetime.strptime(date_string, "%Y-%m-%dT%H:%M:%S.%fZ").replace(tzinfo=timezone.utc)
+    except ValueError as e:
+        raise ValueError(
+            f"Cannot parse '{date_string}' as a datetime. Date string is expected to"
+            " follow '%Y-%m-%dT%H:%M:%S.%fZ' pattern."
+        ) from e