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需要python3版本

1.安装安装 Node.js 和 NPM

      Node.js 网站：

      并且升级最新版本npm install npm@latest -g

2.安装Windows 构建工具

npm install --global --production windows-build-tools

3.安装 Python 最新版本

Python 下载页面：https：//www.python.org/downloads/windows/

勾选在 Python 安装步骤中为所有用户选项添加 Python 到 PATH 选项和安装启动程序。

在下一步中勾选 pip 和 py 启动器选项并安装 Python。

4.升级

 python -m pip install --upgrade pip

5.安装  web3.py

pip install web3 -i https://pypi.douban.com/simple

报错

2ERROR: Exception:Traceback (most recent call last):  File "f:\py3\lib\site-packages\pip\_vendor\urllib3\response.py", line 425, in _error_catcher    yield  File "f:\py3\lib\site-packages\pip\_vendor\urllib3\response.py", line 507, in read    data = self._fp.read(amt) if not fp_closed else b""  File "f:\py3\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read    data = self.__fp.read(amt)  File "f:\py3\lib\http\client.py", line 454, in read    n = self.readinto(b)  File "f:\py3\lib\http\client.py", line 498, in readinto    n = self.fp.readinto(b)  File "f:\py3\lib\socket.py", line 669, in readinto    return self._sock.recv_into(b)  File "f:\py3\lib\ssl.py", line 1241, in recv_into    return self.read(nbytes, buffer)  File "f:\py3\lib\ssl.py", line 1099, in read    return self._sslobj.read(len, buffer)socket.timeout: The read operation timed outDuring handling of the above exception, another exception occurred:Traceback (most recent call last):  File "f:\py3\lib\site-packages\pip\_internal\cli\base_command.py", line 186, in _main    status = self.run(options, args)  File "f:\py3\lib\site-packages\pip\_internal\commands\install.py", line 331, in run    resolver.resolve(requirement_set)  File "f:\py3\lib\site-packages\pip\_internal\legacy_resolve.py", line 177, in resolve    discovered_reqs.extend(self._resolve_one(requirement_set, req))  File "f:\py3\lib\site-packages\pip\_internal\legacy_resolve.py", line 333, in _resolve_one    abstract_dist = self._get_abstract_dist_for(req_to_install)  File "f:\py3\lib\site-packages\pip\_internal\legacy_resolve.py", line 282, in _get_abstract_dist_for    abstract_dist = self.preparer.prepare_linked_requirement(req)  File "f:\py3\lib\site-packages\pip\_internal\operations\prepare.py", line 480, in prepare_linked_requirement    local_path = unpack_url(  File "f:\py3\lib\site-packages\pip\_internal\operations\prepare.py", line 282, in unpack_url    return unpack_http_url(  File "f:\py3\lib\site-packages\pip\_internal\operations\prepare.py", line 158, in unpack_http_url    from_path, content_type = _download_http_url(  File "f:\py3\lib\site-packages\pip\_internal\operations\prepare.py", line 303, in _download_http_url    for chunk in download.chunks:  File "f:\py3\lib\site-packages\pip\_internal\utils\ui.py", line 160, in iter    for x in it:  File "f:\py3\lib\site-packages\pip\_internal\network\utils.py", line 15, in response_chunks    for chunk in response.raw.stream(  File "f:\py3\lib\site-packages\pip\_vendor\urllib3\response.py", line 564, in stream    data = self.read(amt=amt, decode_content=decode_content)  File "f:\py3\lib\site-packages\pip\_vendor\urllib3\response.py", line 529, in read    raise IncompleteRead(self._fp_bytes_read, self.length_remaining)  File "f:\py3\lib\contextlib.py", line 131, in __exit__    self.gen.throw(type, value, traceback)  File "f:\py3\lib\site-packages\pip\_vendor\urllib3\response.py", line 430, in _error_catcher    raise ReadTimeoutError(self._pool, None, "Read timed out.")pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out.

切换源即可

pip install web3 -i https://pypi.douban.com/simple

参考