Don't raise HTTPStatusErrors on CORS errors when querying packages in a transaction

micropip/_compat/__init__.py

@@ -34,9 +34,6 @@
 
 to_js = compatibility_layer.to_js
 
-HttpStatusError = compatibility_layer.HttpStatusError
-
-
 __all__ = [
     "LOCKFILE_INFO",
     "LOCKFILE_PACKAGES",
@@ -47,5 +44,4 @@
     "loadPackage",
     "get_dynlibs",
     "to_js",
-    "HttpStatusError",
 ]

micropip/_compat/_compat_in_pyodide.py

@@ -7,7 +7,7 @@
 
 from pyodide._package_loader import get_dynlibs
 from pyodide.ffi import IN_BROWSER, to_js
-from pyodide.http import HttpStatusError, pyfetch
+from pyodide.http import pyfetch
 
 from .compatibility_layer import CompatibilityLayer
 
@@ -28,14 +28,6 @@
 
 
 class CompatibilityInPyodide(CompatibilityLayer):
-    class HttpStatusError(Exception):
-        status_code: int
-        message: str
-
-        def __init__(self, status_code: int, message: str):
-            self.status_code = status_code
-            self.message = message
-            super().__init__(message)
 
     @staticmethod
     async def fetch_bytes(url: str, kwargs: dict[str, str]) -> bytes:
@@ -51,11 +43,9 @@ async def fetch_bytes(url: str, kwargs: dict[str, str]) -> bytes:
     async def fetch_string_and_headers(
         url: str, kwargs: dict[str, str]
     ) -> tuple[str, dict[str, str]]:
-        try:
-            response = await pyfetch(url, **kwargs)
-            response.raise_for_status()
-        except HttpStatusError as e:
-            raise CompatibilityInPyodide.HttpStatusError(e.status, str(e)) from e
+
+        response = await pyfetch(url, **kwargs)
+        response.raise_for_status()
 
         content = await response.string()
         headers: dict[str, str] = response.headers

micropip/_compat/_compat_not_in_pyodide.py

@@ -1,7 +1,6 @@
 import re
 from pathlib import Path
 from typing import IO, TYPE_CHECKING, Any
-from urllib.error import HTTPError
 from urllib.request import Request, urlopen
 from urllib.response import addinfourl
 
@@ -17,15 +16,6 @@ class CompatibilityNotInPyodide(CompatibilityLayer):
     # TODO: use packaging APIs here instead?
     _canonicalize_regex = re.compile(r"[-_.]+")
 
-    class HttpStatusError(Exception):
-        status_code: int
-        message: str
-
-        def __init__(self, status_code: int, message: str):
-            self.status_code = status_code
-            self.message = message
-            super().__init__(message)
-
     class loadedPackages(CompatibilityLayer.loadedPackages):
         @staticmethod
         def to_py():
@@ -43,11 +33,7 @@ async def fetch_bytes(url: str, kwargs: dict[str, Any]) -> bytes:
     async def fetch_string_and_headers(
         url: str, kwargs: dict[str, Any]
     ) -> tuple[str, dict[str, str]]:
-        try:
-            response = CompatibilityNotInPyodide._fetch(url, kwargs=kwargs)
-        except HTTPError as e:
-            raise CompatibilityNotInPyodide.HttpStatusError(e.code, str(e)) from e
-
+        response = CompatibilityNotInPyodide._fetch(url, kwargs=kwargs)
         headers = {k.lower(): v for k, v in response.headers.items()}
         return response.read().decode(), headers
 

micropip/_compat/compatibility_layer.py

@@ -13,14 +13,6 @@ class CompatibilityLayer(ABC):
     All of the following methods / properties must be implemented for use both inside and outside of pyodide.
     """
 
-    class HttpStatusError(ABC, Exception):
-        status_code: int
-        message: str
-
-        @abstractmethod
-        def __init__(self, status_code: int, message: str):
-            pass
-
     class loadedPackages(ABC):
         @staticmethod
         @abstractmethod

micropip/package_index.py

@@ -9,7 +9,7 @@
 from typing import Any
 from urllib.parse import urljoin, urlparse, urlunparse
 
-from ._compat import HttpStatusError, fetch_string_and_headers
+from ._compat import fetch_string_and_headers
 from ._utils import is_package_compatible, parse_version
 from ._vendored.mousebender.simple import from_project_details_html
 from ._vendored.packaging.src.packaging.utils import InvalidWheelFilename
@@ -313,14 +313,14 @@ async def query_package(
             logger.debug("Url has no placeholder, appending package name : %r", url)
         try:
             metadata, headers = await fetch_string_and_headers(url, _fetch_kwargs)
-        except HttpStatusError as e:
-            if e.status_code == 404:
-                logger.debug("NotFound (404) for %r, trying next index.", url)
-                continue
+        except Exception as e:
             logger.debug(
-                "Error fetching %r (%s), trying next index.", url, e.status_code
+                "Error fetching metadata for the package %r from (%r): %r, trying next index.",
+                name,
+                url,
+                e,
             )
-            raise
+            continue
 
         content_type = headers.get("content-type", "").lower()
         try: