← pod_r5_v1i

requests_6644

resolved RESOLVED PASS · 21 tool calls · 154 s · psf/requests

Task input

Trim excess leading path separators

A URL with excess leading / (path-separator)s would cause urllib3 to attempt to reparse the request-uri as a full URI with a host and port. This bypasses that logic in ConnectionPool.urlopen by replacing these leading /s with just a single /.

Closes #6643

Tool calls (22)

#ToolArgumentsResult
1run_command
{
 "command": "# 1: Search for where the path or URL is handled, specifically looking for things related to leading slashes.\ngrep -rn 'path' src/requests/models.py src/requests/sessions.py src/requests/utils.py | grep '/' | head -20\n"
}
{"status": "ok", "stdout": "src/requests/models.py:86: def path_url(self):\nsrc/requests/models.py:87: \"\"\"Build the path URL to use.\"\"\"\nsrc/requests/mode
full
{"status": "ok", "stdout": "src/requests/models.py:86:    def path_url(self):\nsrc/requests/models.py:87:        \"\"\"Build the path URL to use.\"\"\"\nsrc/requests/models.py:93:        path = p.path\nsrc/requests/models.py:94:        if not path:\nsrc/requests/models.py:95:            path = \"/\"\nsrc/requests/models.py:97:        url.append(path)\nsrc/requests/models.py:431:        # Support for unicode domain names and paths.\nsrc/requests/models.py:433:            scheme, auth, host, port, path, query, fragment = parse_url(url)\nsrc/requests/models.py:467:        if not path:\nsrc/requests/models.py:468:            path = \"/\"\nsrc/requests/models.py:480:        url = requote_uri(urlunparse([scheme, netloc, path, None, query, fragment]))\nsrc/requests/sessions.py:212:            # (e.g. '/path/to/resource' instead of 'http://domain.tld/path/to/resource')\nsrc/requests/sessions.py:426:        #: SSL client certificate default, if String, path to ssl client\nsrc/requests/sessions.py:551:            the server's TLS certificate, or a string, in which case it must be a path\nsrc/requests/sessions.py:558:        :param cert: (optional) if String, path to ssl client cert file (.pem).\nsrc/requests/utils.py:211:        netrc_path = None\nsrc/requests/utils.py:215:                loc = os.path.expanduser(f)\nsrc/requests/utils.py:217:                # os.path.expanduser can fail when $HOME is undefined and\nsrc/requests/utils.py:222:            if os.path.exists(loc):\nsrc/requests/utils.py:223:                netrc_path = loc\n", "stderr": "", "exit_code": 0}
2run_command
{
 "command": "# 2: Examine src/requests/models.py around path_url (lines 86-97) and the other path-related area (lines 467-480).\nsed -n '80,100p' src/requests/models.py\nsed -n '460,490p' src/requests/models.py\n"
}
{"status": "ok", "stdout": "CONTENT_CHUNK_SIZE = 10 * 1024\nITER_CHUNK_SIZE = 512\n\n\nclass RequestEncodingMixin:\n @property\n def path_url(self):\n \"\"\"Bui
full
{"status": "ok", "stdout": "CONTENT_CHUNK_SIZE = 10 * 1024\nITER_CHUNK_SIZE = 512\n\n\nclass RequestEncodingMixin:\n    @property\n    def path_url(self):\n        \"\"\"Build the path URL to use.\"\"\"\n\n        url = []\n\n        p = urlsplit(self.url)\n\n        path = p.path\n        if not path:\n            path = \"/\"\n\n        url.append(path)\n\n        query = p.query\n        if query:\n        if netloc:\n            netloc += \"@\"\n        netloc += host\n        if port:\n            netloc += f\":{port}\"\n\n        # Bare domains aren't valid URLs.\n        if not path:\n            path = \"/\"\n\n        if isinstance(params, (str, bytes)):\n            params = to_native_string(params)\n\n        enc_params = self._encode_params(params)\n        if enc_params:\n            if query:\n                query = f\"{query}&{enc_params}\"\n            else:\n                query = enc_params\n\n        url = requote_uri(urlunparse([scheme, netloc, path, None, query, fragment]))\n        self.url = url\n\n    def prepare_headers(self, headers):\n        \"\"\"Prepares the given HTTP headers.\"\"\"\n\n        self.headers = CaseInsensitiveDict()\n        if headers:\n            for header in headers.items():\n                # Raise exception on invalid header value.\n                check_header_validity(header)\n", "stderr": "", "exit_code": 0}
3run_command
{
 "command": "# 3: Search for where the request URI is constructed and sent to urllib3.\ngrep -rn 'urlopen' src/requests/adapters.py\n"
}
{"status": "ok", "stdout": "src/requests/adapters.py:485: resp = conn.urlopen(\n", "stderr": "", "exit_code": 0}
full
{"status": "ok", "stdout": "src/requests/adapters.py:485:            resp = conn.urlopen(\n", "stderr": "", "exit_code": 0}
4run_command
{
 "command": "# 4: Examine src/requests/adapters.py around line 485 to see what is passed to urlopen.\nsed -n '470,495p' src/requests/adapters.py\n"
}
{"status": "ok", "stdout": " if isinstance(timeout, tuple):\n try:\n connect, read = timeout\n timeout = TimeoutSauce(connect=connect, read=read)\n except Value
full
{"status": "ok", "stdout": "        if isinstance(timeout, tuple):\n            try:\n                connect, read = timeout\n                timeout = TimeoutSauce(connect=connect, read=read)\n            except ValueError:\n                raise ValueError(\n                    f\"Invalid timeout {timeout}. Pass a (connect, read) timeout tuple, \"\n                    f\"or a single float to set both timeouts to the same value.\"\n                )\n        elif isinstance(timeout, TimeoutSauce):\n            pass\n        else:\n            timeout = TimeoutSauce(connect=timeout, read=timeout)\n\n        try:\n            resp = conn.urlopen(\n                method=request.method,\n                url=url,\n                body=request.body,\n                headers=request.headers,\n                redirect=False,\n                assert_same_host=False,\n                preload_content=False,\n                decode_content=False,\n                retries=self.max_retries,\n                timeout=timeout,\n", "stderr": "", "exit_code": 0}
5run_command
{
 "command": "# 5: Trace where `url` comes from in src/requests/adapters.py.\nsed -n '400,480p' src/requests/adapters.py\n"
}
{"status": "ok", "stdout": " nothing by default, but is left for overriding by users that subclass\n the :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.\n
full
{"status": "ok", "stdout": "        nothing by default, but is left for overriding by users that subclass\n        the :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.\n\n        This should not be called from user code, and is only exposed for use\n        when subclassing the\n        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.\n\n        :param request: The :class:`PreparedRequest <PreparedRequest>` to add headers to.\n        :param kwargs: The keyword arguments from the call to send().\n        \"\"\"\n        pass\n\n    def proxy_headers(self, proxy):\n        \"\"\"Returns a dictionary of the headers to add to any request sent\n        through a proxy. This works with urllib3 magic to ensure that they are\n        correctly sent to the proxy, rather than in a tunnelled request if\n        CONNECT is being used.\n\n        This should not be called from user code, and is only exposed for use\n        when subclassing the\n        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.\n\n        :param proxy: The url of the proxy being used for this request.\n        :rtype: dict\n        \"\"\"\n        headers = {}\n        username, password = get_auth_from_url(proxy)\n\n        if username:\n            headers[\"Proxy-Authorization\"] = _basic_auth_str(username, password)\n\n        return headers\n\n    def send(\n        self, request, stream=False, timeout=None, verify=True, cert=None, proxies=None\n    ):\n        \"\"\"Sends PreparedRequest object. Returns Response object.\n\n        :param request: The :class:`PreparedRequest <PreparedRequest>` being sent.\n        :param stream: (optional) Whether to stream the request content.\n        :param timeout: (optional) How long to wait for the server to send\n            data before giving up, as a float, or a :ref:`(connect timeout,\n            read timeout) <timeouts>` tuple.\n        :type timeout: float or tuple or urllib3 Timeout object\n        :param verify: (optional) Either a bool
6run_command
{
 "command": "# 6: Examine request_url method in src/requests/adapters.py.\ngrep -n 'def request_url' src/requests/adapters.py\nsed -n '380,400p' src/requests/adapters.py\n"
}
{"status": "ok", "stdout": "369: def request_url(self, request, proxies):\n :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs.\n :rtype
full
{"status": "ok", "stdout": "369:    def request_url(self, request, proxies):\n        :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs.\n        :rtype: str\n        \"\"\"\n        proxy = select_proxy(request.url, proxies)\n        scheme = urlparse(request.url).scheme\n\n        is_proxied_http_request = proxy and scheme != \"https\"\n        using_socks_proxy = False\n        if proxy:\n            proxy_scheme = urlparse(proxy).scheme.lower()\n            using_socks_proxy = proxy_scheme.startswith(\"socks\")\n\n        url = request.path_url\n        if is_proxied_http_request and not using_socks_proxy:\n            url = urldefragauth(request.url)\n\n        return url\n\n    def add_headers(self, request, **kwargs):\n        \"\"\"Add any headers needed by the connection. As of v2.0 this does\n        nothing by default, but is left for overriding by users that subclass\n", "stderr": "", "exit_code": 0}
7run_command
{
 "command": "# 7: Look at request.path_url again. It's a property in RequestEncodingMixin.\n# Let's see RequestEncodingMixin in src/requests/models.py.\ngrep -n 'class RequestEncodingMixin' src/requests/models.py\nsed -n '80,120p' src/requests/models.py\n"
}
{"status": "ok", "stdout": "84:class RequestEncodingMixin:\nCONTENT_CHUNK_SIZE = 10 * 1024\nITER_CHUNK_SIZE = 512\n\n\nclass RequestEncodingMixin:\n @property\n
full
{"status": "ok", "stdout": "84:class RequestEncodingMixin:\nCONTENT_CHUNK_SIZE = 10 * 1024\nITER_CHUNK_SIZE = 512\n\n\nclass RequestEncodingMixin:\n    @property\n    def path_url(self):\n        \"\"\"Build the path URL to use.\"\"\"\n\n        url = []\n\n        p = urlsplit(self.url)\n\n        path = p.path\n        if not path:\n            path = \"/\"\n\n        url.append(path)\n\n        query = p.query\n        if query:\n            url.append(\"?\")\n            url.append(query)\n\n        return \"\".join(url)\n\n    @staticmethod\n    def _encode_params(data):\n        \"\"\"Encode parameters in a piece of data.\n\n        Will successfully encode parameters when passed as a dict or a list of\n        2-tuples. Order is retained if data is a list of 2-tuples but arbitrary\n        if parameters are supplied as a dict.\n        \"\"\"\n\n        if isinstance(data, (str, bytes)):\n            return data\n        elif hasattr(data, \"read\"):\n            return data\n        elif hasattr(data, \"__iter__\"):\n            result = []\n", "stderr": "", "exit_code": 0}
8run_command
{
 "command": "# 8: The problem is that `path = p.path` can have multiple leading slashes, and we want only one.\n# Let's create a reproduction script to confirm.\ncat > /tmp/repro.py <<'PY'\nfrom requests import Request\nfrom requests.models import PreparedRequest\n\ndef test_excess_slashes():\n    # Simulating how PreparedRequest.url might be set.\n    # In request_url, it calls request.path_url.\n    # RequestEncodingMixin.path_url uses urlsplit(self.url).path.\n    \n    class MockRequest:\n        def __init__(self, url):\n            self.url = url\n        @property\n        def path_url(self):\n            from requests.models import RequestEncodingMixin\n            # We need to inherit from RequestEncodingMixin or just call its method if it's not using self.url\n            # But path_url uses self.url.\n            # Let's just create a real PreparedRequest if possible, or a class that inherits.\n            pass\n\n    # Let's use the actual PreparedRequest and RequestEncodingMixin.\n    from requests.models import PreparedRequest\n    \n    pr = PreparedRequest()\n    pr.url = \"http://example.com///foo/bar\"\n    print(f\"URL: {pr.url}\")\n    print(f\"path_url: {pr.path_url}\")\n\ntest_excess_slashes()\nPY\npython3 /tmp/repro.py\n"
}
{"status": "ok", "stdout": "URL: http://example.com///foo/bar\npath_url: ///foo/bar\n", "stderr": "", "exit_code": 0}
full
{"status": "ok", "stdout": "URL: http://example.com///foo/bar\npath_url: ///foo/bar\n", "stderr": "", "exit_code": 0}
9run_command
{
 "command": "# 9: Now we know where the issue is. We need to trim excess leading slashes in `path_url`.\n# The requirement is: \"replacing these leading /s with just a single /\".\n# If path is \"///foo/bar\", it should become \"/foo/bar\".\n# If path is \"/\", it should remain \"/\".\n# If path is \"\", it should become \"/\".\n\n# Let's verify this logic in the repro script.\ncat > /tmp/repro_fixed.py <<'PY'\ndef trim_slashes(path):\n    if not path:\n        return \"/\"\n    if path.startswith(\"//\"):\n        return \"/\" + path.lstrip(\"/\")\n    return path\n\ntest_cases = [\n    (\"///foo/bar\", \"/foo/bar\"),\n    (\"/\", \"/\"),\n    (\"\", \"/\"),\n    (\"/foo/bar\", \"/foo/bar\"),\n    (\"//\", \"/\"),\n]\n\nfor inp, exp in test_cases:\n    res = trim_slashes(inp)\n    print(f\"Input: {inp!r:15} Expected: {exp!r:15} Result: {res!r:15} {'OK' if res == exp else 'FAIL'}\")\nPY\npython3 /tmp/repro_fixed.py\n"
}
{"status": "ok", "stdout": "Input: '///foo/bar' Expected: '/foo/bar' Result: '/foo/bar' OK\nInput: '/' Expected: '/' Result: '/' OK\nInput: '' Expected: '/' Res
full
{"status": "ok", "stdout": "Input: '///foo/bar'    Expected: '/foo/bar'      Result: '/foo/bar'      OK\nInput: '/'             Expected: '/'             Result: '/'             OK\nInput: ''              Expected: '/'             Result: '/'             OK\nInput: '/foo/bar'      Expected: '/foo/bar'      Result: '/foo/bar'      OK\nInput: '//'            Expected: '/'             Result: '/'             OK\n", "stderr": "", "exit_code": 0}
10run_command
{
 "command": "# 10: Now apply the fix to src/requests/models.py.\n# We need to modify RequestEncodingMixin.path_url.\n# Original code:\n#         path = p.path\n#         if not path:\n#             path = \"/\"\n#\n# New code:\n#         path = p.path\n#         if not path:\n#             path = \"/\"\n#         elif path.startswith(\"//\"):\n#             path = \"/\" + path.lstrip(\"/\")\n\n# Wait, let's double check if there's a simpler way.\n# path = \"/\" + path.lstrip(\"/\")\n# If path is \"/foo\", lstrip(\"/\") is \"foo\", so result is \"/foo\".\n# If path is \"///foo\", lstrip(\"/\") is \"foo\", so result is \"/foo\".\n# If path is \"/\", lstrip(\"/\") is \"\", so result is \"/\".\n# If path is \"\", lstrip(\"/\") is \"\", so result is \"/\".\n# So path = \"/\" + path.lstrip(\"/\") covers all cases.\n\n# Let's verify:\ncat > /tmp/repro_simple.py <<'PY'\ndef trim_slashes_simple(path):\n    return \"/\" + path.lstrip(\"/\")\n\ntest_cases = [\n    (\"///foo/bar\", \"/foo/bar\"),\n    (\"/\", \"/\"),\n    (\"\", \"/\"),\n    (\"/foo/bar\", \"/foo/bar\"),\n    (\"//\", \"/\"),\n]\n\nfor inp, exp in test_cases:\n    res = trim_slashes_simple(inp)\n    print(f\"Input: {inp!r:15} Expected: {exp!r:15} Result: {res!r:15} {'OK' if res == exp else 'FAIL'}\")\nPY\npython3 /tmp/repro_simple.py\n"
}
{"status": "ok", "stdout": "Input: '///foo/bar' Expected: '/foo/bar' Result: '/foo/bar' OK\nInput: '/' Expected: '/' Result: '/' OK\nInput: '' Expected: '/' Res
full
{"status": "ok", "stdout": "Input: '///foo/bar'    Expected: '/foo/bar'      Result: '/foo/bar'      OK\nInput: '/'             Expected: '/'             Result: '/'             OK\nInput: ''              Expected: '/'             Result: '/'             OK\nInput: '/foo/bar'      Expected: '/foo/bar'      Result: '/foo/bar'      OK\nInput: '//'            Expected: '/'             Result: '/'             OK\n", "stderr": "", "exit_code": 0}
11run_command
{
 "command": "# 11: Now let's apply the change to src/requests/models.py.\n# Using a replacement block.\ncd /workspace && python3 - <<'PY'\nfrom pathlib import Path\np = Path(\"src/requests/models.py\")\ns = p.read_text()\nold = \"\"\"        path = p.path\n        if not path:\n            path = \"/\"\n\"\"\"\nnew = \"\"\"        path = p.path\n        if not path:\n            path = \"/\"\n        elif path.startswith(\"//\"):\n            path = \"/\" + path.lstrip(\"/\")\n\"\"\"\nassert s.count(old) == 1, (\"old text found this many times:\", s.count(old))\nt = s.replace(old, new)\np.write_text(t)\nPY\n"
}
{"status": "ok", "stdout": "", "stderr": "", "exit_code": 0}
full
{"status": "ok", "stdout": "", "stderr": "", "exit_code": 0}
12run_command
{
 "command": "# 12: Verify the change in src/requests/models.py.\nsed -n '90,100p' src/requests/models.py\n"
}
{"status": "ok", "stdout": "\n p = urlsplit(self.url)\n\n path = p.path\n if not path:\n path = \"/\"\n elif path.startswith(\"//\"):\n path = \"/\" + path.lstr
full
{"status": "ok", "stdout": "\n        p = urlsplit(self.url)\n\n        path = p.path\n        if not path:\n            path = \"/\"\n        elif path.startswith(\"//\"):\n            path = \"/\" + path.lstrip(\"/\")\n\n        url.append(path)\n\n", "stderr": "", "exit_code": 0}
13run_command
{
 "command": "# 13: Final verification with a script.\ncat > /tmp/final_check.py <<'PY'\nfrom requests.models import PreparedRequest\n\ndef test_excess_slashes():\n    test_cases = [\n        (\"http://example.com///foo/bar\", \"/foo/bar\"),\n        (\"http://example.com/\", \"/\"),\n        (\"http://example.com\", \"/\"),\n        (\"http://example.com/foo/bar\", \"/foo/bar\"),\n        (\"http://example.com//\", \"/\"),\n    ]\n\n    for url, exp in test_cases:\n        pr = PreparedRequest()\n        pr.url = url\n        res = pr.path_url\n        print(f\"URL: {url:30} Expected: {exp:15} Result: {res:15} {'OK' if res == exp else 'FAIL'}\")\n\ntest_excess_slashes()\nPY\npython3 /tmp/final_check.py\n"
}
{"status": "ok", "stdout": "URL: http://example.com///foo/bar Expected: /foo/bar Result: /foo/bar OK\nURL: http://example.com/ Expected: / Result: / OK\nURL: ht
full
{"status": "ok", "stdout": "URL: http://example.com///foo/bar   Expected: /foo/bar        Result: /foo/bar        OK\nURL: http://example.com/            Expected: /               Result: /               OK\nURL: http://example.com             Expected: /               Result: /               OK\nURL: http://example.com/foo/bar     Expected: /foo/bar        Result: /foo/bar        OK\nURL: http://example.com//           Expected: /               Result: /               OK\n", "stderr": "", "exit_code": 0}
14run_command
{
 "command": "# 14: Also check for any other occurrences of path = p.path that might need this.\ngrep -rn 'path = p.path' src/requests/models.py\n"
}
{"status": "ok", "stdout": "src/requests/models.py:93: path = p.path\n", "stderr": "", "exit_code": 0}
full
{"status": "ok", "stdout": "src/requests/models.py:93:        path = p.path\n", "stderr": "", "exit_code": 0}
15run_command
{
 "command": "# 15: Double check the other path-related area I saw earlier.\n# src/requests/models.py:467: if not path: path = \"/\"\n# Let's see what's around there.\nsed -n '460,480p' src/requests/models.py\n"
}
{"status": "ok", "stdout": " # Carefully reconstruct the network location\n netloc = auth or \"\"\n if netloc:\n netloc += \"@\"\n netloc += host\n if port:\n n
full
{"status": "ok", "stdout": "        # Carefully reconstruct the network location\n        netloc = auth or \"\"\n        if netloc:\n            netloc += \"@\"\n        netloc += host\n        if port:\n            netloc += f\":{port}\"\n\n        # Bare domains aren't valid URLs.\n        if not path:\n            path = \"/\"\n\n        if isinstance(params, (str, bytes)):\n            params = to_native_string(params)\n\n        enc_params = self._encode_params(params)\n        if enc_params:\n            if query:\n                query = f\"{query}&{enc_params}\"\n            else:\n                query = enc_params\n", "stderr": "", "exit_code": 0}
16run_command
{
 "command": "# 16: The area around line 467 is inside another method (likely part of prepare_url or similar).\n# Let's find the method name.\ngrep -n 'def' src/requests/models.py | grep -C 1 '467' || grep -n 'def' src/requests/models.py | grep -B 5 '467'\n# Or just use sed.\nsed -n '430,470p' src/requests/models.py\n"
}
{"status": "ok", "stdout": " self.url = url\n return\n\n # Support for unicode domain names and paths.\n try:\n scheme, auth, host, port, path, query, fragment
full
{"status": "ok", "stdout": "            self.url = url\n            return\n\n        # Support for unicode domain names and paths.\n        try:\n            scheme, auth, host, port, path, query, fragment = parse_url(url)\n        except LocationParseError as e:\n            raise InvalidURL(*e.args)\n\n        if not scheme:\n            raise MissingSchema(\n                f\"Invalid URL {url!r}: No scheme supplied. \"\n                f\"Perhaps you meant https://{url}?\"\n            )\n\n        if not host:\n            raise InvalidURL(f\"Invalid URL {url!r}: No host supplied\")\n\n        # In general, we want to try IDNA encoding the hostname if the string contains\n        # non-ASCII characters. This allows users to automatically get the correct IDNA\n        # behaviour. For strings containing only ASCII characters, we need to also verify\n        # it doesn't start with a wildcard (*), before allowing the unencoded hostname.\n        if not unicode_is_ascii(host):\n            try:\n                host = self._get_idna_encoded_host(host)\n            except UnicodeError:\n                raise InvalidURL(\"URL has an invalid label.\")\n        elif host.startswith((\"*\", \".\")):\n            raise InvalidURL(\"URL has an invalid label.\")\n\n        # Carefully reconstruct the network location\n        netloc = auth or \"\"\n        if netloc:\n            netloc += \"@\"\n        netloc += host\n        if port:\n            netloc += f\":{port}\"\n\n        # Bare domains aren't valid URLs.\n        if not path:\n            path = \"/\"\n", "stderr": "", "exit_code": 0}
17run_command
{
 "command": "# 17: In the other location (around line 467), `path` comes from `parse_url(url)`.\n# Let's see where `parse_url` is defined.\ngrep -rn 'def parse_url' src/requests/\n"
}
{"status": "error", "error_type": "CommandError", "error_message": "", "details": {"stdout": "", "stderr": "", "exit_code": 1}}
full
{"status": "error", "error_type": "CommandError", "error_message": "", "details": {"stdout": "", "stderr": "", "exit_code": 1}}
18run_command
{
 "command": "# 18: Search for `parse_url =` or where it is imported.\ngrep -rn 'parse_url' src/requests/models.py | head -20\n"
}
{"status": "ok", "stdout": "src/requests/models.py:25:from urllib3.util import parse_url\nsrc/requests/models.py:435: scheme, auth, host, port, path, query, fra
full
{"status": "ok", "stdout": "src/requests/models.py:25:from urllib3.util import parse_url\nsrc/requests/models.py:435:            scheme, auth, host, port, path, query, fragment = parse_url(url)\n", "stderr": "", "exit_code": 0}
19run_command
{
 "command": "# 19: It seems `parse_url` is from `urllib3.util`.\n# The problem statement says: \"A URL with excess leading / (path-separator)s would cause urllib3 to attempt to reparse the request-uri as a full URI with a host and port. This bypasses that logic in ConnectionPool.urlopen by replacing these leading /s with just a single /.\"\n# `request_url` in `HTTPAdapter` uses `request.path_url`, which we have fixed.\n# `request.path_url` is what is eventually passed to `conn.urlopen`.\n# So fixing `RequestEncodingMixin.path_url` is exactly what is needed to fix the `request-uri` passed to `urlopen`.\n\n# Let's check if there are other places where `request-uri` is constructed.\n# In `src/requests/adapters.py`:\n#         url = self.request_url(request, proxies)\n# And `request_url` returns `request.path_url` (mostly).\n\n# The other location in `models.py` (line 467) seems to be part of `prepare_url`.\n# `prepare_url` prepares the `self.url` of the `PreparedRequest`.\n# `self.url` is the full URL (e.g., http://example.com///foo).\n# `path_url` then takes `self.url`, splits it, and returns just the path part.\n# So if we fix `path_url`, it doesn't matter if `self.url` still has the excess slashes, because `urlopen` gets the result of `path_url`.\n\n# Let's verify this by checking if `urlopen` is called with `self.url` or `request_url`.\n# In `src/requests/adapters.py`, `send` method:\n#         url = self.request_url(request, proxies)\n#         ...\n#         resp = conn.urlopen(\n#             ...\n#             url=url,\n#             ...\n#         )\n# Yes, it uses `self.request_url`, which returns `request.path_url`.\n\n# So my fix in `RequestEncodingMixin.path_url` is correct and sufficient.\n# I'll do one final check on the code to make sure I didn't introduce any bugs.\n# Original:\n#         path = p.path\n#         if not path:\n#             path = \"/\"\n#\n# Fixed:\n#         path = p.path\n#         if not path:\n#             path = \"/\"\n#         elif path.startswith(\"//\"):\n#             path = \"/\" + path.lstrip(\"/\")\n#\n# This looks solid.\n# One detail: if `path` was `//`, `lstrip(\"/\")` is `\"\"`, result is `/`. Correct.\n# If `path` was `///foo`, `lstrip(\"/\")` is `foo`, result is `/foo`. Correct.\n# If `path` was `/foo`, it doesn't start with `//`, result is `/foo`. Correct.\n# If `path` was ``, it enters `if not path`, result is `/`. Correct.\n\n# Wait, the problem says \"replacing these leading /s with just a single /\".\n# Does it mean only if there are MULTIPLE leading slashes?\n# Yes, \"excess leading /\".\n# My code `elif path.startswith(\"//\"): path = \"/\" + path.lstrip(\"/\")` does exactly that.\n\n# I'm confident.\n"
}
{"status": "ok", "stdout": "", "stderr": "", "exit_code": 0}
full
{"status": "ok", "stdout": "", "stderr": "", "exit_code": 0}
20run_command
{
 "command": "# 20: Final check of the diff.\ngit diff\n"
}
{"status": "ok", "stdout": "diff --git a/src/requests/models.py b/src/requests/models.py\nindex 44556394..618b4b30 100644\n--- a/src/requests/models.py\n+++ b/s
full
{"status": "ok", "stdout": "diff --git a/src/requests/models.py b/src/requests/models.py\nindex 44556394..618b4b30 100644\n--- a/src/requests/models.py\n+++ b/src/requests/models.py\n@@ -93,6 +93,8 @@ class RequestEncodingMixin:\n         path = p.path\n         if not path:\n             path = \"/\"\n+        elif path.startswith(\"//\"):\n+            path = \"/\" + path.lstrip(\"/\")\n \n         url.append(path)\n \n", "stderr": "", "exit_code": 0}
21run_command
{
 "command": "# 21: Remove reproduction scripts.\nrm /tmp/repro.py /tmp/repro_fixed.py /tmp/repro_simple.py /tmp/final_check.py\n"
}
{"status": "ok", "stdout": "", "stderr": "", "exit_code": 0}
full
{"status": "ok", "stdout": "", "stderr": "", "exit_code": 0}
22submit_patch
{}
{"status": "ok", "patch_size": 376, "files_changed": 1}
full
{"status": "ok", "patch_size": 376, "files_changed": 1}

Patch

diff --git a/src/requests/models.py b/src/requests/models.py
index 44556394..618b4b30 100644
--- a/src/requests/models.py
+++ b/src/requests/models.py
@@ -93,6 +93,8 @@ class RequestEncodingMixin:
         path = p.path
         if not path:
             path = "/"
+        elif path.startswith("//"):
+            path = "/" + path.lstrip("/")
 
         url.append(path)
 

Test output

show
.                                                                        [100%]
=============================== warnings summary ===============================
../../../../../../../Users/jp/repos/kaggle-gemini-coding-agent-post-training/.envs/requests/lib/python3.13/site-packages/_pytest/config/__init__.py:1464
  /Users/jp/repos/kaggle-gemini-coding-agent-post-training/.envs/requests/lib/python3.13/site-packages/_pytest/config/__init__.py:1464: PytestConfigWarning: Unknown config option: timeout
  
    self._warn_or_fail_if_strict(f"Unknown config option: {key}\n")

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
1 passed, 1 warning in 0.01s
[2026-09-25 19:19:08,280] WARNING in core: flasgger is not installed; serving the static landing page at / and skipping the Swagger UI and /spec.json.