Remove Chaquopy repository from default pip command line

Author: mhsmith

cibuildwheel/platforms/android.py

@@ -408,11 +408,6 @@ def test_wheel(
         "--only-binary=:all:",
         "--platform",
         platform_tag,
-        # This index contains Android wheels for many of the most common packages
-        # which the wheel under test might depend on. Once enough of those packages
-        # have been released for Android on PyPI, this argument can be removed.
-        "--extra-index-url",
-        "https://chaquo.com/pypi-13.1/",
         "--target",
         site_packages_dir,
         f"{wheel}{build_options.test_extras}",

docs/platforms.md

@@ -236,13 +236,20 @@ Cross-architecture testing is not supported.
 On Linux, the emulator needs access to the KVM virtualization interface, and a DISPLAY
 environment variable pointing at an X server. Xvfb is acceptable.
 
+The test process uses the same testbed used by CPython itself to run the CPython test
+suite. It is a Gradle project that has been configured to have a single JUnit test,
+the result of which reports the success or failure of running the test command.
+
 The Android test environment can't support running shell scripts, so the
 [`test-command`](options.md#test-command) must be a Python command – see its
 documentation for details.
 
-The test process uses the same testbed used by CPython itself to run the CPython test
-suite. It is a Gradle project that has been configured to have a single JUnit test,
-the result of which reports the success or failure of running the test command.
+If your package has dependencies which haven't been released on PyPI yet, you may want
+to use the [`environment`](options.md#environment) option to set `PIP_EXTRA_INDEX_URL`
+to one of the following URLs:
+
+* https://chaquo.com/pypi-13.1
+* https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
 
 
 ## iOS {: #ios}

test/test_android.py

@@ -232,6 +232,7 @@ def test_api_level(tmp_path, capfd):
             # Verify that Android dependencies can be installed from the Chaquopy repository, and
             # that wheels tagged with an older version of Android (in this case 24) are still
             # accepted.
+            "CIBW_ENVIRONMENT": "PIP_EXTRA_INDEX_URL=https://chaquo.com/pypi-13.1",
             "CIBW_TEST_REQUIRES": "bitarray==3.0.0",
             "CIBW_TEST_COMMAND": (
                 "python -c 'from bitarray import bitarray; print(~bitarray(\"01100\"))'"