GeezerVison

The `Namespace` class detected `http://tableausoftware.com/api` (the pre-8.3
namespace) at runtime on every XML response and let the parser silently switch
namespaces if it saw the old one. That behavior has been unreachable for years:
the library's `minimum_supported_server_version` is 2.3, which corresponds to
Tableau Server 10.0 -- shipped in 2016, three years after the namespace changed.
Every server TSC has ever admitted uses `http://tableau.com/api`.

Removes:
- `tableauserverclient/namespace.py` (the module) and everything it exported:
  `Namespace`, `UnknownNamespaceError`, `OLD_NAMESPACE`, `NEW_NAMESPACE`,
  `NAMESPACE_RE`.
- `Server._namespace` instance and the per-response `.detect(...)` call in
  `Endpoint._make_request` and both sign-in paths in `Auth`.

Keeps:
- The public `TSC.DEFAULT_NAMESPACE` re-export -- now sourced from
  `tableauserverclient.server.server.NAMESPACE`, which is the canonical
  constant. Same string value.
- `Server.namespace` property -- still returns the `{"t": NAMESPACE}` dict
  callers pass to ElementTree's `namespaces=` kwarg. Same shape.

Callers who imported directly from `tableauserverclient.namespace` (rather
than `TSC.DEFAULT_NAMESPACE`) will break; the CHANGELOG entry calls this out.

Fixes #1046.

Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

Copilot AI left a comment

…hared state

Copilot flagged that Server.namespace returned the module-level
_NAMESPACE_MAP directly, so a caller mutating the returned dict would
have polluted every other Server instance in the process. Old namespace-
handling code returned a per-instance dict, so no cross-instance
pollution was possible. Wrap in dict(...) to restore that behavior.

…e-old-namespace

# Conflicts:
#	tableauserverclient/server/endpoint/auth_endpoint.py

Cosmetic import-graph cleanup on top of #1863's move of `NAMESPACE`
from `namespace.py` into `server/server.py`. Before this change,
`tableauserverclient/__init__.py:2` did `from tableauserverclient.
server.server import NAMESPACE`, which forces `server.server` (and
its transitive endpoint tree) to load just to read a string
constant.

Copilot flagged the circular-import path this creates: `server.
server` -> `server.endpoint.endpoint` -> `from tableauserverclient
import ...` -> `__init__` -> `server.server`. Python resolves the
chain today because the reentrant lookups pull submodules whose
own load doesn't back-reference the partially-initialized parent,
but the shape is fragile and adding a new top-level import to
`__init__.py` before line 2 could easily break it.

Replaced the import with the string literal. Kept in sync with
the `NAMESPACE` constant in `server/server.py`. Also removes one
of the two entry points into `server.server` at package load,
though everything else in `__init__.py` still transitively pulls
the endpoint tree via the models block below, so no real startup
savings -- this is defensive, not a perf fix.

CHANGELOG.md: development now points to the GitHub Releases page, so the
changelog entry for this change is dropped (the breaking-change note moves
to the PR description).
tableauserverclient/namespace.py: deletion kept; development only added
docstrings to the removed module.

Add test/test_namespace.py pinning TSC.DEFAULT_NAMESPACE to server.NAMESPACE
and checking Server.namespace returns an independent copy.

Written with Claude Code

Copilot AI left a comment