Fix paper-qa dependency installation in CI/CD

- Update pyproject.toml to use paper-qa>=4.9.0 (compatible with Python 3.8-3.11)
- Add conditional paper-qa installation in CI workflow:
  - Python 3.11: Install from GitHub (latest) or fallback to 4.9.0
  - Python 3.8-3.10: Install paper-qa>=4.9.0,<5.0.0 (stable version)
- Fixes CI failures: paper-qa>=5.0.0 doesn't exist on PyPI yet

This resolves the 'No matching distribution found for paper-qa>=5.0.0' error

Author: RonaldRonnie

.github/workflows/ci.yml

@@ -62,7 +62,6 @@ jobs:
           google-generativeai>=0.7.2 \
           tiktoken>=0.5.0 \
           litellm>=1.50.0 \
-          paper-qa>=5.0.0 \
           requests>=2.31.0 \
           beautifulsoup4>=4.12.2 \
           lxml>=4.9.0 \
@@ -90,6 +89,19 @@ jobs:
           pytz>=2023.3 \
           qdrant-client>=1.7.0
     
+    - name: Install paper-qa (version based on Python version)
+      run: |
+        if [ "${{ matrix.python-version }}" == "3.11" ]; then
+          # For Python 3.11, install latest paper-qa from GitHub (supports >=5.0.0)
+          echo "Installing paper-qa from GitHub for Python 3.11"
+          pip install --no-cache-dir git+https://github.com/Future-House/paper-qa.git || \
+          pip install --no-cache-dir "paper-qa>=4.9.0,<5.0.0"
+        else
+          # For Python 3.8-3.10, install latest stable version compatible with older Python
+          echo "Installing paper-qa 4.9.0 for Python ${{ matrix.python-version }}"
+          pip install --no-cache-dir "paper-qa>=4.9.0,<5.0.0"
+        fi
+    
     - name: Verify installation
       env:
         PYTHONPATH: ${{ github.workspace }}

pyproject.toml

@@ -45,7 +45,9 @@ dependencies = [
     "tiktoken>=0.5.0",
     "litellm>=1.50.0",
     # Paper-QA agent integration
-    "paper-qa>=5.0.0",
+    # Note: paper-qa>=5.0.0 requires Python >=3.11
+    # For Python <3.11, install paper-qa>=4.9.0,<5.0.0
+    "paper-qa>=4.9.0",
     # Web and data retrieval
     "requests>=2.31.0",
     "beautifulsoup4>=4.12.2",