if-expression line breaks in function arguments

[gsnedders]

Describe the style change

Currently, if an if-expression within a function call needs to be broken across lines to avoid being an overly long line, it gets put horizontally in line with arguments which makes it hard to see where each argument in the call begins.

Examples in the current Black style

            yield Test(
                test_path=trimmed_path,
                expected_text_path=expected_text_paths[-1]
                if expected_text_paths
                else None,
                expected_audio_path=expected_audio_paths[-1]
                if expected_audio_paths
                else None,
                expected_image_path=expected_image_paths[-1]
                if expected_image_paths
                else None,
                reference_files=sorted(reference_files[-1])
                if reference_files
                else None,
                is_http_test="http/test" in trimmed_path,
                is_websocket_test="websocket/" in trimmed_path,
                is_wpt_test=(
                    "imported/w3c/web-platform-tests/" in trimmed_path
                    or "http/wpt/" in trimmed_path
                ),
            )

Desired style

            yield Test(
                test_path=trimmed_path,
                expected_text_path=expected_text_paths[-1]
                    if expected_text_paths
                    else None,
                expected_audio_path=expected_audio_paths[-1]
                    if expected_audio_paths
                    else None,
                expected_image_path=expected_image_paths[-1]
                    if expected_image_paths
                    else None,
                reference_files=sorted(reference_files[-1])
                    if reference_files
                    else None,
                is_http_test="http/test" in trimmed_path,
                is_websocket_test="websocket/" in trimmed_path,
                is_wpt_test=(
                    "imported/w3c/web-platform-tests/" in trimmed_path
                    or "http/wpt/" in trimmed_path
                ),
            )

(I'm not really beholden to this specific option to make it clear where each argument is, but I do really think it should be clearer.)

[felix-hilden]

Hi! This is a duplicate of #2248, so I'll close it. Let's continue the discussion there.