Fix build: upgrade pip toolchain and loosen whisper version

Dockerfile

@@ -9,6 +9,9 @@ RUN apt-get update && \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
+# 升级pip工具链，避免pkg_resources缺失
+RUN pip install --upgrade pip setuptools wheel
+
 # 复制依赖文件
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
@@ -21,4 +24,4 @@ COPY app.py .
 
 EXPOSE 7860
 
-CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]

app.py

@@ -135,4 +135,4 @@ async def generate_subtitle(
 
 if __name__ == "__main__":
     import uvicorn
-    uvicorn.run(app, host="0.0.0.0", port=7860)
+    uvicorn.run(app, host="0.0.0.0", port=7860)

requirements.txt

@@ -1,5 +1,5 @@
 fastapi==0.104.1
 uvicorn==0.24.0
 python-multipart==0.0.6
-openai-whisper==20231117
-ffmpeg-python==0.2.0
+openai-whisper>=20231117
+ffmpeg-python==0.2.0