python用pip安装selenium过程中的问题

python环境：anaconda+win10

开始学习爬虫，但是在第一天就遇到了大问题，在命令行安装selenium一直提示下列SSL有问题：WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available………… No matching distribution found for selenium

于是我开始了问度娘，有问题找度娘嘛。可是找啊找，网上的答案主要是：

方法1：增大超时时间
pip –default-timeout=100 install selenium
方法2：修改安装源为清华安装源
pip install –index https://mirrors.ustc.edu.cn/pypi/web/simple/ selenium

我一个个尝试后发现依然解决不了问题，于是开始自己各种在花样百度，找呀找呀，终于发现原来是我的python环境没有激活导致的。现在知道原因了这还不好解决吗。

解决方法：

1.打开命令行，输入activate base

2.这就进入到python环境中去了，再输入pip install selenium,可是再一次出现了问题：

 Downloading selenium-3.141.0-py2.py3-none-any.whl (904 kB)
     |█                               | 30 kB 1.1 kB/s eta 0:13:18ERROR: Exception:
Traceback (most recent call last):
  File “D:installanacondalibsite-packagespip_vendorurllib3response.py”, line 425, in _error_catcher
    yield
  File “D:installanacondalibsite-packagespip_vendorurllib3response.py”, line 507, in read
    data = self._fp.read(amt) if not fp_closed else b””
  File “D:installanacondalibsite-packagespip_vendorcachecontrolfilewrapper.py”, line 62, in read
    data = self.__fp.read(amt)
  File “D:installanacondalibhttpclient.py”, line 457, in read
    n = self.readinto(b)
  File “D:installanacondalibhttpclient.py”, line 501, in readinto
    n = self.fp.readinto(b)
  File “D:installanacondalibsocket.py”, line 589, in readinto
    return self._sock.recv_into(b)
  File “D:installanacondalibssl.py”, line 1071, in recv_into
    return self.read(nbytes, buffer)
  File “D:installanacondalibssl.py”, line 929, in read
    return self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File “D:installanacondalibsite-packagespip_internalclibase_command.py”, line 186, in _main
    status = self.run(options, args)
  File “D:installanacondalibsite-packagespip_internalcommandsinstall.py”, line 331, in run
    resolver.resolve(requirement_set)
  File “D:installanacondalibsite-packagespip_internallegacy_resolve.py”, line 177, in resolve
    discovered_reqs.extend(self._resolve_one(requirement_set, req))
  File “D:installanacondalibsite-packagespip_internallegacy_resolve.py”, line 333, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File “D:installanacondalibsite-packagespip_internallegacy_resolve.py”, line 282, in _get_abstract_dist_for
    abstract_dist = self.preparer.prepare_linked_requirement(req)
  File “D:installanacondalibsite-packagespip_internaloperationsprepare.py”, line 482, in prepare_linked_requirement
    hashes=hashes,
  File “D:installanacondalibsite-packagespip_internaloperationsprepare.py”, line 287, in unpack_url
    hashes=hashes,
  File “D:installanacondalibsite-packagespip_internaloperationsprepare.py”, line 159, in unpack_http_url
    link, downloader, temp_dir.path, hashes
  File “D:installanacondalibsite-packagespip_internaloperationsprepare.py”, line 303, in _download_http_url
    for chunk in download.chunks:
  File “D:installanacondalibsite-packagespip_internalutilsui.py”, line 160, in iter
    for x in it:
  File “D:installanacondalibsite-packagespip_internalnetworkutils.py”, line 39, in response_chunks
    decode_content=False,
  File “D:installanacondalibsite-packagespip_vendorurllib3response.py”, line 564, in stream
    data = self.read(amt=amt, decode_content=decode_content)
  File “D:installanacondalibsite-packagespip_vendorurllib3response.py”, line 529, in read
    raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
  File “D:installanacondalibcontextlib.py”, line 130, in __exit__
    self.gen.throw(type, value, traceback)
  File “D:installanacondalibsite-packagespip_vendorurllib3response.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.

下载的好好的，为什么有一子又出现了问题呢？

3.哎，好事多磨哦，于是我猜测是不是外网的问题？果断换了一个下载源。

在命令行中输入以下命令：

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

按下确定键后：

 Downloading https://pypi.doubanio.com/packages/80/d6/4294f0b4bce4de0abf13e17190289f9d0613b0a44e5dd6a7f5ca98459853/selenium-3.141.0-py2.py3-none-any.whl (904 kB)
     |████████████████████████████████| 904 kB 1.3 MB/s
Requirement already satisfied: urllib3 in d:installanacondalibsite-packages (from selenium) (1.25.8)
Installing collected packages: selenium
Successfully installed selenium-3.141.0

圆满完成下载任务。

作者：离愁无语说