fix datetime deprecated + fix path to requirements

Author: kvn147

.github/workflows/test.yml

@@ -26,7 +26,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt --upgrade pip
+        pip install -r server/requirements.txt
 
     - name: Lint with flake8
       run: |

server/app/clustering.py

@@ -280,7 +280,7 @@ def _quick_keyword_overlap(self, text1: str, text2: str) -> float:
 
     def _is_cluster_stale(self, cluster_data: Dict) -> bool:
         """Check if cluster is too old to accept new posts"""
-        cluster_age = datetime.utcnow() - cluster_data["created_at"]
+        cluster_age = datetime.now(datetime.UTC) - cluster_data["created_at"]
         return cluster_age > timedelta(hours=24)
 
     def create_cluster(self, post: Dict) -> int:
@@ -293,7 +293,7 @@ def create_cluster(self, post: Dict) -> int:
             "representative_post_id": post["id"],
             "representative_post": post,  # Store full post for similarity comparison
             "domain": domain,
-            "created_at": datetime.utcnow(),
+            "created_at": datetime.now(datetime.UTC),
             "post_count": 1,
             "title": post["title"],
         }

server/app/models.py

@@ -23,7 +23,7 @@ class Post(Base):
     content = Column(Text)
     url = Column(String)
     author = Column(String)
-    created_at = Column(DateTime, default=datetime.utcnow)
+    created_at = Column(DateTime, default=datetime.now(datetime.UTC))
     reddit_created_utc = Column(Float)
     score = Column(Integer, default=0)
     subreddit = Column(String, nullable=False)
@@ -41,8 +41,8 @@ class Cluster(Base):
 
     id = Column(Integer, primary_key=True, autoincrement=True)
     representative_post_id = Column(String, ForeignKey("posts.id"))
-    created_at = Column(DateTime, default=datetime.utcnow)
-    updated_at = Column(DateTime, default=datetime.utcnow)
+    created_at = Column(DateTime, default=datetime.now(datetime.UTC))
+    updated_at = Column(DateTime, default=datetime.now(datetime.UTC))
     post_count = Column(Integer, default=1)
     keywords = Column(Text)  # JSON string of important keywords
     title = Column(String)  # Generated cluster title