{
  "source_file": "0043.json",
  "swe_bench_task": "django/django-16255",
  "everos_session_id": "session_django_16255",
  "everos_agent_sender_id": "agent_django",
  "everos_user_sender_id": "user_001",
  "everos_tool_sender_id": "tool_runner",
  "base_timestamp_ms": 1700000000000,
  "inter_message_gap_ms": 1000,
  "message_count": 30,
  "conversion_rules": {
    "role": "verbatim from source (user / assistant / tool)",
    "sender_id": "user→user_001, assistant→agent_<project>, tool→tool_runner",
    "timestamp": "BASE_TIMESTAMP_MS + idx * 1000",
    "content": "verbatim; empty string for assistant tool-call-only turns",
    "tool_calls": "kept on assistant rows (OpenAI Chat Completions shape)",
    "tool_call_id": "kept on tool rows"
  },
  "messages": [
    {
      "sender_id": "user_001",
      "role": "user",
      "timestamp": 1700000000000,
      "content": "WRAPPER_PATH: /tmp/sweb.eval.django__django-16255.full-run-exec\n\n你需要修复一个开源项目的 bug。代码仓库是 django/django，已经 checkout 到了 bug 存在的版本。\n任务总时限 30 分钟，请合理安排时间。\n\n【严格规则】\n- 所有命令必须通过 WRAPPER_PATH 执行\n- 严禁使用 read、write、edit、Read、Write、Edit 工具（这些工具操作的是宿主机，不是任务环境）\n- 严禁直接使用 exec 运行命令（必须通过 WRAPPER_PATH）\n- 写文件必须用 WRAPPER_PATH write，不要用 tmux-run + cat/heredoc（会有转义问题）\n- 不要修改测试文件\n- 严禁执行 git commit、git add、git stash 等 git 操作，只需修改文件即可，评测系统会自动收集你的改动\n\n操作方式：\n  执行命令: exec(\"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"命令\\\" 等待秒数\")\n  轮询等待: exec(\"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"\\\" 10\")\n  写文件:   exec(\"/tmp/sweb.eval.django__django-16255.full-run-exec write /目标路径 << 'EOF'\\n文件内容\\nEOF\")\n  中断命令: exec(\"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"ctrl-c\\\" 3\")\n\n## Bug 描述\n\nSitemaps without items raise ValueError on callable lastmod.\nDescription\n\t\nWhen sitemap contains not items, but supports returning lastmod for an item, it fails with a ValueError:\nTraceback (most recent call last):\n File \"/usr/local/lib/python3.10/site-packages/django/core/handlers/exception.py\", line 55, in inner\n\tresponse = get_response(request)\n File \"/usr/local/lib/python3.10/site-packages/django/core/handlers/base.py\", line 197, in _get_response\n\tresponse = wrapped_callback(request, *callback_args, **callback_kwargs)\n File \"/usr/local/lib/python3.10/site-packages/django/utils/decorators.py\", line 133, in _wrapped_view\n\tresponse = view_func(request, *args, **kwargs)\n File \"/usr/local/lib/python3.10/site-packages/django/contrib/sitemaps/views.py\", line 34, in inner\n\tresponse = func(request, *args, **kwargs)\n File \"/usr/local/lib/python3.10/site-packages/django/contrib/sitemaps/views.py\", line 76, in index\n\tsite_lastmod = site.get_latest_lastmod()\n File \"/usr/local/lib/python3.10/site-packages/django/contrib/sitemaps/__init__.py\", line 170, in get_latest_lastmod\n\treturn max([self.lastmod(item) for item in self.items()])\nException Type: ValueError at /sitemap.xml\nException Value: max() arg is an empty sequence\nSomething like this might be a solution:\n\t def get_latest_lastmod(self):\n\t\t if not hasattr(self, \"lastmod\"):\n\t\t\t return None\n\t\t if callable(self.lastmod):\n\t\t\t try:\n\t\t\t\t return max([self.lastmod(item) for item in self.items()])\n-\t\t\texcept TypeError:\n+\t\t\texcept (TypeError, ValueError):\n\t\t\t\t return None\n\t\t else:\n\t\t\t return self.lastmod\n\n\n修复完成后回复 TASK_COMPLETE。"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000001000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_2a516e487ab64c7093b0e8da",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"find /testbed -name '*.py' -path '*/sitemaps/*' | head -20\\\" 5\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000002000,
      "content": "(testbed) root@55ab59df2a68:/testbed# find /testbed -name '*.py' -path '*/sitemaps/*' | head -20\n/testbed/django/contrib/gis/sitemaps/__init__.py\n/testbed/django/contrib/gis/sitemaps/views.py\n/testbed/django/contrib/gis/sitemaps/kml.py\n/testbed/django/contrib/sitemaps/management/commands/__init__.py\n... (42 lines omitted) ...",
      "tool_call_id": "call_2a516e487ab64c7093b0e8da"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000003000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_6142f3a745ac480dbe29f2f1",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"cat /testbed/django/contrib/sitemaps/__init__.py\\\" 5\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000004000,
      "content": "(testbed) root@55ab59df2a68:/testbed# cat /testbed/django/contrib/sitemaps/__init__.py\nimport warnings\nfrom urllib.parse import urlencode\nfrom urllib.request import urlopen\n\n... (205 lines omitted) ...\n                        }\n                    )\n                if self.x_default:\n                    lang_code = settings.LANGUAGE_CODE\n                    loc = f\"{protocol}://{domain}{self._location(item, lang_code)}\"\n                    loc = loc.replace(f\"/{lang_code}/\", \"/\", 1)\n                    url_info[\"alternates\"].append(\n                        {\n                            \"location\": loc,\n                            \"lang_code\": \"x-default\",\n                        }\n                    )\n\n            urls.append(url_info)\n\n        if all_items_lastmod and latest_lastmod:\n            self.latest_lastmod = latest_lastmod\n\n        return urls\n\n\nclass GenericSitemap(Sitemap):\n    priority = None\n    changefreq = None\n\n    def __init__(self, info_dict, priority=None, changefreq=None, protocol=None):\n        self.queryset = info_dict[\"queryset\"]\n        self.date_field = info_dict.get(\"date_field\")\n        self.priority = self.priority or priority\n        self.changefreq = self.changefreq or changefreq\n        self.protocol = self.protocol or protocol\n\n    def items(self):\n        # Make sure to return a clone; we don't want premature evaluation.\n        return self.queryset.filter()\n\n    def lastmod(self, item):\n        if self.date_field is not None:\n            return getattr(item, self.date_field)\n        return None\n\n    def get_latest_lastmod(self):\n        if self.date_field is not None:\n            return (\n                self.queryset.order_by(\"-\" + self.date_field)\n                .values_list(self.date_field, flat=True)\n                .first()\n            )\n        return None\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_6142f3a745ac480dbe29f2f1"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000005000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_c991e3fac2c24689989e7fe3",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"grep -n 'get_latest_lastmod' /testbed/django/contrib/sitemaps/__init__.py\\\" 3\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000006000,
      "content": "(testbed) root@55ab59df2a68:/testbed# grep -n 'get_latest_lastmod' /testbed/django/contrib/sitemaps/__init__.py\n165:    def get_latest_lastmod(self):\n251:    def get_latest_lastmod(self):\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_c991e3fac2c24689989e7fe3"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000007000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_337dae1280a8457ea798ce4b",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"sed -n '160,180p' /testbed/django/contrib/sitemaps/__init__.py\\\" 3\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000008000,
      "content": "(testbed) root@55ab59df2a68:/testbed# sed -n '160,180p' /testbed/django/contrib/sitemaps/__init__.py\n    def get_urls(self, page=1, site=None, protocol=None):\n        protocol = self.get_protocol(protocol)\n        domain = self.get_domain(site)\n        return self._urls(page, protocol, domain)\n\n    def get_latest_lastmod(self):\n        if not hasattr(self, \"lastmod\"):\n            return None\n        if callable(self.lastmod):\n            try:\n                return max([self.lastmod(item) for item in self.items()])\n            except TypeError:\n                return None\n        else:\n            return self.lastmod\n\n    def _urls(self, page, protocol, domain):\n        urls = []\n        latest_lastmod = None\n        all_items_lastmod = True  # track if all items have a lastmod\n\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_337dae1280a8457ea798ce4b"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000009000,
      "content": "Now I can see the bug. The `get_latest_lastmod` method at line 165-174 catches `TypeError` but not `ValueError`. When `self.items()` returns an empty list, `max()` raises `ValueError: max() arg is an empty sequence`.\n\nLet me fix this by adding `ValueError` to the exception handling:",
      "tool_calls": [
        {
          "id": "call_a763a7e71fc8408fb45e9ce0",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"sed -n '165,175p' /testbed/django/contrib/sitemaps/__init__.py\\\" 3\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000010000,
      "content": "(testbed) root@55ab59df2a68:/testbed# sed -n '165,175p' /testbed/django/contrib/sitemaps/__init__.py\n    def get_latest_lastmod(self):\n        if not hasattr(self, \"lastmod\"):\n            return None\n        if callable(self.lastmod):\n            try:\n                return max([self.lastmod(item) for item in self.items()])\n            except TypeError:\n                return None\n        else:\n            return self.lastmod\n\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_a763a7e71fc8408fb45e9ce0"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000011000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_9602e2041f164372812d86e2",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"sed -i 's/except TypeError:/except (TypeError, ValueError):/' /testbed/django/contrib/sitemaps/__init__.py\\\" 3\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000012000,
      "content": "(testbed) root@55ab59df2a68:/testbed# sed -i 's/except TypeError:/except (TypeError, ValueError):/' /testbed/django/contrib/sitemaps/__init__.py\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_9602e2041f164372812d86e2"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000013000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_dfd83b1b3eee49fbb28a9654",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"sed -n '165,175p' /testbed/django/contrib/sitemaps/__init__.py\\\" 3\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000014000,
      "content": "(testbed) root@55ab59df2a68:/testbed# sed -n '165,175p' /testbed/django/contrib/sitemaps/__init__.py\n    def get_latest_lastmod(self):\n        if not hasattr(self, \"lastmod\"):\n            return None\n        if callable(self.lastmod):\n            try:\n                return max([self.lastmod(item) for item in self.items()])\n            except (TypeError, ValueError):\n                return None\n        else:\n            return self.lastmod\n\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_dfd83b1b3eee49fbb28a9654"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000015000,
      "content": "The fix has been applied. Let me verify it works by running the sitemap tests:",
      "tool_calls": [
        {
          "id": "call_fd3ac38f848f45d594861cf5",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"cd /testbed && python -m pytest tests/sitemaps_tests/test_sitemap.py -v -x 2>&1 | head -100\\\" 30\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000016000,
      "content": "(testbed) root@55ab59df2a68:/testbed# cd /testbed && python -m pytest tests/sitemaps_tests/test_sitemap.py -v -x 2>&1 | head -100\n/opt/miniconda3/envs/testbed/bin/python: No module named pytest\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_fd3ac38f848f45d594861cf5"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000017000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_749cde7219dd49d6a193fe05",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"cd /testbed && python runtests.py sitemaps_tests 2>&1 | tail -50\\\" 30\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000018000,
      "content": "(testbed) root@55ab59df2a68:/testbed# cd /testbed && python runtests.py sitemaps_tests 2>&1 | tail -50\npython: can't open file '/testbed/runtests.py': [Errno 2] No such file or directory\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_749cde7219dd49d6a193fe05"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000019000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_058e8950b1234318b8360376",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"find /testbed -name 'runtests.py' 2>/dev/null | head -5\\\" 5\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000020000,
      "content": "(testbed) root@55ab59df2a68:/testbed# find /testbed -name 'runtests.py' 2>/dev/null | head -5\n/testbed/tests/runtests.py\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_058e8950b1234318b8360376"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000021000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_be1f9922d97f4387a78de883",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"cd /testbed && python tests/runtests.py sitemaps_tests 2>&1 | tail -50\\\" 30\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000022000,
      "content": "(testbed) root@55ab59df2a68:/testbed# cd /testbed && python tests/runtests.py sitemaps_tests 2>&1 | tail -50\nCreating test database for alias 'default'...\nTesting against Django installed in '/testbed/django' with up to 128 processes\nFound 60 test(s).\nCloning test database for alias 'default'...\nCloning test database for alias 'default'...\nCloning test database for alias 'default'...\nCloning test database for alias 'default'...\nCloning test database for alias 'default'...\nCloning test database for alias 'default'...\nCloning test database for alias 'default'...\nSystem check identified no issues (0 silenced).\n............................................................\n----------------------------------------------------------------------\nRan 60 tests in 0.133s\n\nOK\nDestroying test database for alias 'default'...\nDestroying test database for alias 'default'...\nDestroying test database for alias 'default'...\nDestroying test database for alias 'default'...\nDestroying test database for alias 'default'...\nDestroying test database for alias 'default'...\nDestroying test database for alias 'default'...\nDestroying test database for alias 'default'...\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_be1f9922d97f4387a78de883"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000023000,
      "content": "All 60 sitemap tests pass. Let me also create a quick test to verify the specific bug scenario is fixed:",
      "tool_calls": [
        {
          "id": "call_a9cced7b7ac140d3b46b54d0",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"cd /testbed && python -c \\\\\\\"\\\\nfrom django.contrib.sitemaps import Sitemap\\\\n\\\\nclass EmptySitemap(Sitemap):\\\\n    def items(self):\\\\n        return []\\\\n    \\\\n    def lastmod(self, item):\\\\n        return None\\\\n\\\\nsitemap = EmptySitemap()\\\\nresult = sitemap.get_latest_lastmod()\\\\nprint(f'Result: {result}')\\\\nprint('Bug is fixed! No ValueError raised.')\\\\n\\\\\\\" 2>&1\\\" 5\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000024000,
      "content": "(testbed) root@55ab59df2a68:/testbed# cd /testbed && python -c \"\\nfrom django.contrib.sitemaps import Sitemap\\n\\nclass EmptySitemap(Sitemap):\\n    def items(self):\\n        return []\\n    \\n    def la\nstmod(self, item):\\n        return None\\n\\nsitemap = EmptySitemap()\\nresult = sitemap.get_latest_lastmod()\\nprint(f'Result: {result}')\\nprint('Bug is fixed! No ValueError raised.')\\n\" 2>&1\n  File \"<string>\", line 1\n    \\nfrom django.contrib.sitemaps import Sitemap\\n\\nclass EmptySitemap(Sitemap):\\n    def items(self):\\n        return []\\n    \\n    def lastmod(self, item):\\n        return None\\n\\nsitemap = EmptySi\ntemap()\\nresult = sitemap.get_latest_lastmod()\\nprint(f'Result: {result}')\\nprint('Bug is fixed! No ValueError raised.')\\n\n     ^\nSyntaxError: unexpected character after line continuation character\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_a9cced7b7ac140d3b46b54d0"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000025000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_113222361ba64a98b38b2211",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec write /tmp/test_fix.py << 'EOF'\\nfrom django.contrib.sitemaps import Sitemap\\n\\nclass EmptySitemap(Sitemap):\\n    def items(self):\\n        return []\\n    \\n    def lastmod(self, item):\\n        return None\\n\\nsitemap = EmptySitemap()\\nresult = sitemap.get_latest_lastmod()\\nprint(f'Result: {result}')\\nprint('Bug is fixed! No ValueError raised.')\\nEOF\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000026000,
      "content": "Written 303 bytes to /tmp/test_fix.py",
      "tool_call_id": "call_113222361ba64a98b38b2211"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000027000,
      "content": "",
      "tool_calls": [
        {
          "id": "call_72954bffd06a4878ad2340d1",
          "type": "function",
          "function": {
            "name": "exec",
            "arguments": "{\"command\": \"/tmp/sweb.eval.django__django-16255.full-run-exec tmux-run \\\"cd /testbed && python /tmp/test_fix.py\\\" 5\"}"
          }
        }
      ]
    },
    {
      "sender_id": "tool_runner",
      "role": "tool",
      "timestamp": 1700000028000,
      "content": "(testbed) root@55ab59df2a68:/testbed# cd /testbed && python /tmp/test_fix.py\nResult: None\nBug is fixed! No ValueError raised.\n(testbed) root@55ab59df2a68:/testbed#",
      "tool_call_id": "call_72954bffd06a4878ad2340d1"
    },
    {
      "sender_id": "agent_django",
      "role": "assistant",
      "timestamp": 1700000029000,
      "content": "The bug is fixed. The fix:\n- Changed `except TypeError:` to `except (TypeError, ValueError):` in the `get_latest_lastmod` method\n- This handles the case when `self.items()` returns an empty list, which causes `max()` to raise `ValueError: max() arg is an empty sequence`\n- All 60 sitemap tests pass\n- The specific bug scenario (empty sitemap with callable lastmod) now returns `None` instead of raising an exception\n\nTASK_COMPLETE"
    }
  ]
}
