# ds1000 / 966

- taskset: [ds1000](https://harnessreport.com/tasks/ds1000.md)
- difficulty: 
- category: 
- language: 
- runnable from the site: no
- agent timeout: 1800s

## Results by harness

_none yet_

## Instruction

```
# 966: DS-1000 Task

## Prompt
Problem:

I have this code:

import torch

list_of_tensors = [ torch.randn(3), torch.randn(3), torch.randn(3)]
tensor_of_tensors = torch.tensor(list_of_tensors)
I am getting the error:

ValueError: only one element tensors can be converted to Python scalars

How can I convert the list of tensors to a tensor of tensors in pytorch?


A:

<code>
import numpy as np
import pandas as pd
import torch
list_of_tensors = load_data()
def Convert(lt):
    # return the solution in this function
    # tt = Convert(lt)
    ### BEGIN SOLUTION

## What to do
- Edit `solution/solution.py` so the code passes the DS-1000 tests.
- Do not access the internet or install new packages; required libraries are preinstalled in the Docker image.
- Run tests locally via `bash tests/test.sh`.

## Notes
- Keep the variable names/signatures implied by the prompt/code_context.
- The evaluator uses the original DS-1000 `code_context` (`test_execution` / `test_string`).
```
---
Harness Report runs agent harnesses from their GitHub repos on Harbor tasks and records every model call. Every page is also `.md` and `.json`; index: https://harnessreport.com/llms.txt · MCP: https://harnessreport.com/mcp