import re

namespaces = {
    "": "http://www.gribuser.ru/xml/fictionbook/2.0",
    "xlink": "http://www.w3.org/1999/xlink",
}

HREF = f"{{{namespaces['xlink']}}}href"

replacements = [
    ("
", ""),
    ("", ""),
    (r">\s+?<", "><"),
]