kyhton.kompress: move to core (with a fallback, used in promnesia)

my/google/takeout/html.py

@@ -130,7 +130,7 @@ class TakeoutHTMLParser(HTMLParser):
 
 
 def read_html(tpath: Path, file: str) -> Iterable[Parsed]:
-    from ...kython.kompress import kopen
+    from ...core.kompress import kopen
     results: List[Parsed] = []
     def cb(dt: datetime, url: Url, title: Title) -> None:
         results.append((dt, url, title))

my/google/takeout/paths.py

@@ -23,7 +23,7 @@ config = make_config(google)
 from pathlib import Path
 from typing import Optional, Iterable
 
-from ...kython.kompress import kopen, kexists
+from ...core.kompress import kopen, kexists
 
 
 def get_takeouts(*, path: Optional[str]=None) -> Iterable[Path]: