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util.py

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+import datetime
+
+TIME_FMT = "%H:%M"
+DATE_FMT = "%Y-%m-%d"
+
+
+def str_to_time(data: str) -> datetime.time:
+    data = ":".join(data.split(":")[:2])
+    return datetime.datetime.strptime(data, TIME_FMT).time()
+
+
+def time_to_str(data: datetime.time) -> str:
+    """
+    Convert a datetime.time object into a formatted string for sqlite
+    :param data: datetime.time
+    :return: str
+    """
+    return data.strftime(TIME_FMT)