Function print_diff

pytest/validate.py:26–62

Try and display a pretty html line difference between the original and uncompyled code and bytecode if elinks and BeautifulSoup are installed otherwise just show the diff. :param original: Text describing the original code object. :param uncompyled: Text describing the uncompyl

(original, uncompyled)

def print_diff(original, uncompyled):
    """
    Try and display a pretty html line difference between the original and
    uncompyled code and bytecode if elinks and BeautifulSoup are installed
    otherwise just show the diff.

    :param original: Text describing the original code object.
    :param uncompyled: Text describing the uncompyled code object.
    """
    original_lines = original.split("\n")
    uncompyled_lines = uncompyled.split("\n")
    args = original_lines, uncompyled_lines, "original", "uncompyled"
    try:
        from bs4 import BeautifulSoup

        diff = difflib.HtmlDiff().make_file(*args)
        diff = BeautifulSoup(diff, "html.parser")
        diff.select_one('table[summary="Legends"]').extract()
    except ImportError:
        print("\nTo display diff highlighting run:\n    pip install BeautifulSoup4")
        diff = difflib.HtmlDiff().make_table(*args)

    with tempfile.NamedTemporaryFile(delete=False) as f:
        f.write(str(diff).encode("utf-8"))

    try:
        print()
        html = subprocess.check_output(
            ["elinks", "-dump", "-no-references", "-dump-color-mode", "1", f.name]
        ).decode("utf-8")
        print(html)
    except:
        print("\nFor side by side diff install elinks")
        diff = difflib.Differ().compare(original_lines, uncompyled_lines)
        print("\n".join(diff))
    finally:
        os.unlink(f.name)


def are_instructions_equal(i1, i2):