Python 3.6环境下使用pip安装Scrapy报错，如何解决？

Hey there, installing Scrapy on Python 3.6 often hits snags due to dependency requirements—let’s go through the most reliable fixes for the typical errors people run into:

• First, upgrade your pip to the latest compatible version
  Outdated pip can cause all sorts of installation issues. Run this command in CMD:
  python -m pip install --upgrade pip

• Install Microsoft Visual C++ Build Tools
  Scrapy relies on Twisted, which requires a C++ compiler to build from source. For Python 3.6, you’ll need the Microsoft Visual C++ Build Tools 2015 or newer. During installation, make sure to select the "C++ build tools" workload and include the MSVC v140 toolset (this is critical for Python 3.6 compatibility).

• Install Twisted separately before Scrapy
  Sometimes installing Twisted first avoids cascading errors. Run:
  pip install twisted
  If this fails, try using a pre-built wheel file for Twisted. Find a wheel that matches your Python 3.6 and system architecture (e.g., Twisted-20.3.0-cp36-cp36m-win_amd64.whl for 64-bit Windows), then install with:
  pip install path\to\your\Twisted-wheel-file.whl

• Ensure Python 3.6 is properly in your PATH
  Double-check that your CMD is using the correct Python version by running python --version. If it shows a different version, use the full path to your Python 3.6 executable, like:
  C:\Python36\python.exe -m pip install scrapy

• Use a virtual environment (recommended)
  Creating a dedicated virtual environment for your Scrapy project avoids conflicts with other Python versions or packages:

  1. Create the environment: python -m venv scrapy_env
  2. Activate it: scrapy_env\Scripts\activate
  3. Install Scrapy: pip install scrapy

If none of these fix your issue, share the exact error message you’re seeing, and we can narrow it down further!

内容的提问来源于stack exchange，提问作者Sara Mahmoud