#36646: oracledb 3.4.0 TypeError: isinstance() arg 2 must be a type, a tuple of
types, or a union
-------------------------------------+-------------------------------------
Reporter: John Wagenleitner | Owner: (none)
Type: New feature | Status: new
Component: Database layer | Version: 5.2
(models, ORM) |
Severity: Normal | Resolution:
Keywords: Oracle | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Natalia Bidart):
* cc: Mariusz Felisiak, Simon Charette (added)
* stage: Unreviewed => Accepted
* type: Uncategorized => New feature
Comment:
Thank you John Wagenleitner, do you have availability to work on the fix?
It seems that our `Database.Date` and `Database.Timestamp` may also be
affected?
Setting as "New Feature" since oracledb 3.4.0 was released October 2025.
For reference, [https://github.com/oracle/python-
oracledb/commit/869a887819cdac7fcd610f9d9d463ade49ea7de6 commit
869a887819cdac7fcd610f9d9d463ade49ea7de6] contains:
{{{#!diff
--- a/src/oracledb/constructors.py
+++ b/src/oracledb/constructors.py
@@ -29,22 +29,23 @@
#
-----------------------------------------------------------------------------
import datetime
+from typing import Any
from . import errors
-# synonyms for the types mandated by the database API
-Binary = bytes
-Date = datetime.date
-Timestamp = datetime.datetime
+def Binary(value: Any) -> bytes:
+ """
+ Constructs an object holding a binary (long) string value.
+ """
+ return bytes(value)
-def Time(hour: int, minute: int, second: int) -> None:
+
+def Date(year: int, month: int, day: int) -> datetime.date:
"""
- Constructor mandated by the database API for creating a time value.
Since
- Oracle doesn't support time only values, an exception is raised when
this
- method is called.
+ Constructs an object holding a date value.
"""
- errors._raise_err(errors.ERR_TIME_NOT_SUPPORTED)
+ return datetime.date(year, month, day)
def DateFromTicks(ticks: float) -> datetime.date:
@@ -56,6 +57,15 @@ def DateFromTicks(ticks: float) -> datetime.date:
return datetime.date.fromtimestamp(ticks)
+def Time(hour: int, minute: int, second: int) -> None:
+ """
+ Constructor mandated by the database API for creating a time value.
Since
+ Oracle doesn't support time only values, an exception is raised when
this
+ method is called.
+ """
+ errors._raise_err(errors.ERR_TIME_NOT_SUPPORTED)
+
+
def TimeFromTicks(ticks: float) -> None:
"""
Constructor mandated by the database API for creating a time value
given
@@ -66,6 +76,20 @@ def TimeFromTicks(ticks: float) -> None:
errors._raise_err(errors.ERR_TIME_NOT_SUPPORTED)
+def Timestamp(
+ year: int,
+ month: int,
+ day: int,
+ hour: int = 0,
+ minute: int = 0,
+ second: int = 0,
+) -> datetime.datetime:
+ """
+ Constructs an object holding a time stamp value.
+ """
+ return datetime.datetime(year, month, day, hour, minute, second)
+
+
def TimestampFromTicks(ticks: float) -> datetime.datetime:
"""
Constructor mandated by the database API for creating a timestamp
value
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/36646#comment:1>
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