fix: error message when manylinux-interpreters ensure ... failed (#2066)

* review: address review comments from #1630

* fix: error message when `manylinux-interpreters ensure ...` failed

* fix: error message when `manylinux-interpreters ensure ...` failed (option b)

Author: mayeut

cibuildwheel/linux.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import contextlib
 import subprocess
 import sys
 import textwrap
@@ -133,26 +134,33 @@ def check_all_python_exist(
     *, platform_configs: Iterable[PythonConfiguration], container: OCIContainer
 ) -> None:
     exist = True
-    has_manylinux_interpreters = True
+    has_manylinux_interpreters = False
     messages = []
 
-    try:
+    with contextlib.suppress(subprocess.CalledProcessError):
         # use capture_output to keep quiet
         container.call(["manylinux-interpreters", "--help"], capture_output=True)
-    except subprocess.CalledProcessError:
-        has_manylinux_interpreters = False
+        has_manylinux_interpreters = True
 
     for config in platform_configs:
         python_path = config.path / "bin" / "python"
-        try:
-            if has_manylinux_interpreters:
+        if has_manylinux_interpreters:
+            try:
                 container.call(["manylinux-interpreters", "ensure", config.path.name])
-            container.call(["test", "-x", python_path])
-        except subprocess.CalledProcessError:
-            messages.append(
-                f"  '{python_path}' executable doesn't exist in image '{container.image}' to build '{config.identifier}'."
-            )
-            exist = False
+            except subprocess.CalledProcessError:
+                messages.append(
+                    f"  'manylinux-interpreters ensure {config.path.name}' needed to build '{config.identifier}' failed in container running image '{container.image}'."
+                    " Either the installation failed or this interpreter is not available in that image. Please check the logs."
+                )
+                exist = False
+        else:
+            try:
+                container.call(["test", "-x", python_path])
+            except subprocess.CalledProcessError:
+                messages.append(
+                    f"  '{python_path}' executable doesn't exist in image '{container.image}' to build '{config.identifier}'."
+                )
+                exist = False
     if not exist:
         message = "\n".join(messages)
         raise errors.FatalError(message)