fix E2E workflow

Author: KRRT7

.github/workflows/e2e-futurehouse-structure.yaml

@@ -61,7 +61,7 @@ jobs:
       - name: Set up Python 3.11 for CLI
         uses: astral-sh/setup-uv@v5
         with:
-          python-version: 3.11.6
+          python-version: 3.11
 
       - name: Install dependencies (CLI)
         run: |
@@ -70,5 +70,7 @@ jobs:
 
       - name: Run Codeflash to optimize code
         id: optimize_code
+        env:
+          PYTHONUTF8: 1
         run: |
           uv run tests/scripts/end_to_end_test_futurehouse.py

tests/scripts/end_to_end_test_utilities.py

@@ -94,6 +94,7 @@ def run_codeflash_command(
 
     output = []
     for line in process.stdout:
+        line = line.strip().encode("utf-8").decode("utf-8")
         logging.info(line.strip())
         output.append(line)
 
@@ -122,7 +123,7 @@ def build_command(
 ) -> list[str]:
     python_path = "../../../codeflash/main.py" if "code_directories" in str(cwd) else "../codeflash/main.py"
 
-    base_command = ["python", python_path, "--file", config.file_path, "--no-pr"]
+    base_command = ["uv", "run", "--no-project",  python_path, "--file", config.file_path, "--no-pr"]
 
     if config.function_name:
         base_command.extend(["--function", config.function_name])
@@ -187,13 +188,14 @@ def validate_stdout_in_candidate(stdout: str, expected_in_stdout: list[str]) ->
 def run_trace_test(cwd: pathlib.Path, config: TestConfig, expected_improvement_pct: int) -> bool:
     test_root = cwd / "tests" / (config.test_framework or "")
     clear_directory(test_root)
-    command = ["python", "-m", "codeflash.main", "optimize", "workload.py"]
+    command = ["uv", "run", "--no-project", "-m", "codeflash.main", "optimize", "workload.py"]
     process = subprocess.Popen(
         command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True, cwd=str(cwd), env=os.environ.copy()
     )
 
     output = []
     for line in process.stdout:
+        line = line.strip().encode("utf-8").decode("utf-8")
         logging.info(line.strip())
         output.append(line)