[PR #22446] [MERGED] fix: replace bare string raises with proper exception types #42333

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GiteaMirror · 2026-04-25T14:16:11-05:00

GiteaMirror commented

2026-04-25 14:16:11 -05:00

📋 Pull Request Information

Original PR: https://github.com/open-webui/open-webui/pull/22446
Author: @alvinttang
Created: 3/8/2026
Status: ✅ Merged
Merged: 3/8/2026
Merged by: @tjbck

Base: dev ← Head: fix/raise-string-typeerror-v2

📝 Commits (1)

f2e46ad fix: replace bare string raises with proper exception types

📊 Changes

2 files changed (+3 additions, -3 deletions)

View changed files

📝 backend/open_webui/retrieval/utils.py (+2 -2)
📝 backend/open_webui/routers/ollama.py (+1 -1)

📄 Description

Description

In Python, raise "some string" does not raise an exception with that message — it raises a TypeError: exceptions must derive from BaseException. This bug exists in three places in the backend where the code intends to signal an error condition but instead raises a confusing TypeError, making the actual problem very hard to debug from logs.
Fixed all three occurrences by replacing raise "string" with proper exception types (ValueError / RuntimeError) that carry the intended error message.

Affected locations

backend/open_webui/retrieval/utils.py — generate_openai_batch_embeddings(): when API response is missing the data key
backend/open_webui/retrieval/utils.py — generate_ollama_batch_embeddings(): when API response is missing the embeddings key
backend/open_webui/routers/ollama.py — download_file_stream(): when blob upload to Ollama fails

Fixed

Replaced raise "Something went wrong :/" with raise ValueError(...) with descriptive messages
Replaced raise "Ollama: Could not create blob..." with raise RuntimeError(...)
Error logs now show the actual problem instead of a misleading TypeError

Additional Information

Tested by reviewing the code path and verifying the fix
Self-reviewed the code changes
These are all inside try/except Exception blocks, so behavior is preserved — only the error message logged changes from a confusing TypeError to the actual descriptive error
Rebased onto dev (replaces #22435)

Contributor License Agreement

By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/open-webui/open-webui/pull/22446 **Author:** [@alvinttang](https://github.com/alvinttang) **Created:** 3/8/2026 **Status:** ✅ Merged **Merged:** 3/8/2026 **Merged by:** [@tjbck](https://github.com/tjbck) **Base:** `dev` ← **Head:** `fix/raise-string-typeerror-v2` --- ### 📝 Commits (1) - [`f2e46ad`](https://github.com/open-webui/open-webui/commit/f2e46ad86385ab48671f5e01b90ddcd9ba6d7ea0) fix: replace bare string raises with proper exception types ### 📊 Changes **2 files changed** (+3 additions, -3 deletions) <details> <summary>View changed files</summary> 📝 `backend/open_webui/retrieval/utils.py` (+2 -2) 📝 `backend/open_webui/routers/ollama.py` (+1 -1) </details> ### 📄 Description ### Description - In Python, `raise "some string"` does not raise an exception with that message — it raises a `TypeError: exceptions must derive from BaseException`. This bug exists in three places in the backend where the code intends to signal an error condition but instead raises a confusing `TypeError`, making the actual problem very hard to debug from logs. - Fixed all three occurrences by replacing `raise "string"` with proper exception types (`ValueError` / `RuntimeError`) that carry the intended error message. ### Affected locations 1. `backend/open_webui/retrieval/utils.py` — `generate_openai_batch_embeddings()`: when API response is missing the `data` key 2. `backend/open_webui/retrieval/utils.py` — `generate_ollama_batch_embeddings()`: when API response is missing the `embeddings` key 3. `backend/open_webui/routers/ollama.py` — `download_file_stream()`: when blob upload to Ollama fails ### Fixed - Replaced `raise "Something went wrong :/"` with `raise ValueError(...)` with descriptive messages - Replaced `raise "Ollama: Could not create blob..."` with `raise RuntimeError(...)` - Error logs now show the actual problem instead of a misleading `TypeError` ### Additional Information - Tested by reviewing the code path and verifying the fix - Self-reviewed the code changes - These are all inside `try/except Exception` blocks, so behavior is preserved — only the error message logged changes from a confusing `TypeError` to the actual descriptive error - Rebased onto dev (replaces #22435) ### Contributor License Agreement - [x] By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](https://github.com/open-webui/open-webui/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

GiteaMirror added the pull-request label 2026-04-25 14:16:11 -05:00

GiteaMirror closed this issue

2026-04-25 14:16:12 -05:00

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Reference: github-starred/open-webui#42333