prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Error with RGBA images
  https://huggingface.co/datasets/huggan/few-shot-skulls
  
  ```
  Status code:   500
  Exception:     Status500Error
  Message:       cannot write mode RGBA as JPEG
  ```
  
  reported by @NielsRogge 
  
  
  
  </issue>
  <code>
  [start of services/worker/src/worker/models/column/image.py]
  1 from typing import Any, List
  2 
  3 from datasets import Image
  4 from PIL import Image as PILImage  # type: ignore
  5 
  6 from worker.models.asset import create_image_file
  7 from worker.models.column.default import (
  8     Cell,
  9     CellTypeError,
  10     ColumnInferenceError,
  11     ColumnTypeError,
  12     CommonColumn,
  13 )
  14 
  15 
  16 def check_value(value: Any) -> None:
  17     if value is None:
  18         return
  19     if not isinstance(value, PILImage.Image):
  20         raise CellTypeError("image cell must be a PIL image")
  21 
  22 
  23 def infer_from_values(values: List[Any]) -> None:
  24     for value in values:
  25         check_value(value)
  26     if values and all(value is None for value in values):
  27         raise ColumnInferenceError("all the values are None, cannot infer column type")
  28 
  29 
  30 class ImageColumn(CommonColumn):
  31     def __init__(self, name: str, feature: Any, values: List[Any]):
  32         if feature:
  33             if not isinstance(feature, Image):
  34                 raise ColumnTypeError("feature type mismatch")
  35         else:
  36             infer_from_values(values)
  37         self.name = name
  38         self.type = "RELATIVE_IMAGE_URL"
  39 
  40     def get_cell_value(self, dataset_name: str, config_name: str, split_name: str, row_idx: int, value: Any) -> Cell:
  41         if value is None:
  42             return None
  43         check_value(value)
  44         # this function can raise, we don't catch it
  45         return create_image_file(dataset_name, config_name, split_name, row_idx, self.name, "image.jpg", value)
  46
  [end of services/worker/src/worker/models/column/image.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/services/worker/src/worker/models/column/image.py b/services/worker/src/worker/models/column/image.py
  --- a/services/worker/src/worker/models/column/image.py
  +++ b/services/worker/src/worker/models/column/image.py
  @@ -41,5 +41,15 @@
           if value is None:
               return None
           check_value(value)
  -        # this function can raise, we don't catch it
  -        return create_image_file(dataset_name, config_name, split_name, row_idx, self.name, "image.jpg", value)
  +        # attempt to generate one of the supported formats; if unsuccessful, throw an error
  +        for ext in [".jpg", ".png"]:
  +            try:
  +                return create_image_file(
  +                    dataset_name, config_name, split_name, row_idx, self.name, f"image{ext}", value
  +                )
  +            except OSError:
  +                # if wrong format, try the next one, see https://github.com/huggingface/datasets-server/issues/191
  +                #  OSError: cannot write mode P as JPEG
  +                #  OSError: cannot write mode RGBA as JPEG
  +                continue
  +        raise ValueError("Image cannot be written as JPEG or PNG")
  
verification_info: {"golden_diff": "diff --git a/services/worker/src/worker/models/column/image.py b/services/worker/src/worker/models/column/image.py\n--- a/services/worker/src/worker/models/column/image.py\n+++ b/services/worker/src/worker/models/column/image.py\n@@ -41,5 +41,15 @@\n         if value is None:\n             return None\n         check_value(value)\n-        # this function can raise, we don't catch it\n-        return create_image_file(dataset_name, config_name, split_name, row_idx, self.name, \"image.jpg\", value)\n+        # attempt to generate one of the supported formats; if unsuccessful, throw an error\n+        for ext in [\".jpg\", \".png\"]:\n+            try:\n+                return create_image_file(\n+                    dataset_name, config_name, split_name, row_idx, self.name, f\"image{ext}\", value\n+                )\n+            except OSError:\n+                # if wrong format, try the next one, see https://github.com/huggingface/datasets-server/issues/191\n+                #  OSError: cannot write mode P as JPEG\n+                #  OSError: cannot write mode RGBA as JPEG\n+                continue\n+        raise ValueError(\"Image cannot be written as JPEG or PNG\")\n", "issue": "Error with RGBA images\nhttps://huggingface.co/datasets/huggan/few-shot-skulls\r\n\r\n```\r\nStatus code:   500\r\nException:     Status500Error\r\nMessage:       cannot write mode RGBA as JPEG\r\n```\r\n\r\nreported by @NielsRogge \r\n\r\n\n", "before_files": [{"content": "from typing import Any, List\n\nfrom datasets import Image\nfrom PIL import Image as PILImage  # type: ignore\n\nfrom worker.models.asset import create_image_file\nfrom worker.models.column.default import (\n    Cell,\n    CellTypeError,\n    ColumnInferenceError,\n    ColumnTypeError,\n    CommonColumn,\n)\n\n\ndef check_value(value: Any) -> None:\n    if value is None:\n        return\n    if not isinstance(value, PILImage.Image):\n        raise CellTypeError(\"image cell must be a PIL image\")\n\n\ndef infer_from_values(values: List[Any]) -> None:\n    for value in values:\n        check_value(value)\n    if values and all(value is None for value in values):\n        raise ColumnInferenceError(\"all the values are None, cannot infer column type\")\n\n\nclass ImageColumn(CommonColumn):\n    def __init__(self, name: str, feature: Any, values: List[Any]):\n        if feature:\n            if not isinstance(feature, Image):\n                raise ColumnTypeError(\"feature type mismatch\")\n        else:\n            infer_from_values(values)\n        self.name = name\n        self.type = \"RELATIVE_IMAGE_URL\"\n\n    def get_cell_value(self, dataset_name: str, config_name: str, split_name: str, row_idx: int, value: Any) -> Cell:\n        if value is None:\n            return None\n        check_value(value)\n        # this function can raise, we don't catch it\n        return create_image_file(dataset_name, config_name, split_name, row_idx, self.name, \"image.jpg\", value)\n", "path": "services/worker/src/worker/models/column/image.py"}]}