fix(find-dependencies): http->https redirections weren't followed

edx_repo_tools/find_dependencies/find_dependencies.py

@@ -119,6 +119,8 @@ def find_real_url(url: str) -> Optional[str]:
             # I didn't know you could get 429 from https://github.com, but you can...
             wait = int(resp.headers.get("Retry-After", 10))
             time.sleep(wait + 1)
+        elif resp.status_code in {301, 302}:
+            url = resp.headers.get("Location")
         else:
             break
 
@@ -303,13 +305,25 @@ def process_directory():
             repo_urls.update(check_py_dependencies())
     return repo_urls
 
+FIRST_PARTY_ORGS = ["openedx"]
+
 SECOND_PARTY_ORGS = [
     "edx", "edx-unsupported", "edx-solutions",
     "mitodl",
     "overhangio",
     "open-craft", "eduNEXT", "raccoongang",
 ]
 
+def urls_in_orgs(urls, orgs):
+    """
+    Find urls that are in any of the `orgs`.
+    """
+    return sorted(
+        url for url in urls
+        if any(f"/{org}/" in url for org in orgs)
+    )
+
+
 def main(dirs=None):
     """
     Analyze the requirements in all of the directories mentioned on the command line.
@@ -331,11 +345,10 @@ def main(dirs=None):
 
     write_list(WORK_DIR / "repo_urls.txt", sorted(repo_urls))
 
-    seconds = sorted(
-        url for url in repo_urls
-        if any(f"/{org}/" in url for org in SECOND_PARTY_ORGS)
-    )
-    write_list(WORK_DIR / "second_party_urls.txt", sorted(seconds))
+    firsts = urls_in_orgs(repo_urls, FIRST_PARTY_ORGS)
+    write_list(WORK_DIR / "first_party_urls.txt", firsts)
+    seconds = urls_in_orgs(repo_urls, SECOND_PARTY_ORGS)
+    write_list(WORK_DIR / "second_party_urls.txt", seconds)
 
     print("== DONE ==============")
     print("Second-party:")