relatives links fix

This a fix for issue

It adds the ability to handle relative links
first check if a link is relative and joining to the full package url

Signed-off-by: Georgios Mathioudakis georgios.mathioudakis@here.com
Signed-off-by: mathioud <georgios.mathioudakis@here.com>

Author: mathioud

src/python_inspector/utils_pypi.py

@@ -30,6 +30,7 @@
 from packvers import tags as packaging_tags
 from packvers import version as packaging_version
 from packvers.specifiers import SpecifierSet
+from urllib.parse import urljoin
 
 from python_inspector import DEFAULT_PYTHON_VERSION
 from python_inspector import utils_pip_compatibility_tags
@@ -1593,8 +1594,15 @@ def fetch_links(
         for anchor_tag in anchor_tags:
             python_requires = None
             url, _, _sha256 = anchor_tag["href"].partition("#sha256=")
+            if url.startswith(".."):
+                # Handle relative links
+                url = urljoin(package_url, url)
             if "data-requires-python" in anchor_tag.attrs:
                 python_requires = anchor_tag.attrs["data-requires-python"]
+            # Check if the link is a relative URL
+            if not url.startswith(("http://", "https://")):
+                base_url = "/".join(package_url.split("/")[:-1])  # Extract base URL
+                url = urljoin(base_url, url)  # Resolve relative URL
             links.append(Link(url=url, python_requires=python_requires))
         # TODO: keep sha256
         return links