我是 Python 初学者。我认为这应该是一项简单的任务。我正在尝试使用 pip 在命令提示符中安装“requests”模块。Python 版本是 3.11.4。以下是来自 cmd 的输出。
C:\WINDOWS\system32>python -m pip install requests
Collecting requests
Using cached requests-2.31.0-py3-none-any.whl (62 kB)
Collecting charset-normalizer<4,>=2 (from requests)
Using cached charset_normalizer-3.2.0-cp311-cp311-win_amd64.whl (96 kB)
Collecting idna<4,>=2.5 (from requests)
Downloading idna-3.4-py3-none-any.whl (61 kB)
---------------------------------------- 61.5/61.5 kB 164.4 kB/s eta 0:00:00
Collecting urllib3<3,>=1.21.1 (from requests)
Downloading urllib3-2.0.3-py3-none-any.whl (123 kB)
----------------------- ---------------- 71.7/123.6 kB 7.4 kB/s eta 0:00:07
ERROR: Exception:
Traceback (most recent call last):
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 438, in _error_catcher
yield
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 561, in read
data = self._fp_read(amt) if not fp_closed else b""
^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 527, in _fp_read
return self._fp.read(amt) if amt is not None else self._fp.read()
^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 90, in read
data = self.__fp.read(amt)
^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\http\client.py", line 466, in read
s = self.fp.read(amt)
^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\socket.py", line 706, in readinto
return self._sock.recv_into(b)
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\ssl.py", line 1278, in recv_into
return self.read(nbytes, buffer)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\ssl.py", line 1134, in read
return self._sslobj.read(len, buffer)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TimeoutError: The read operation timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\cli\base_command.py", line 169, in exc_logging_wrapper
status = run_func(*args)
^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\cli\req_command.py", line 248, in wrapper
return func(self, options, args)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\commands\install.py", line 377, in run
requirement_set = resolver.resolve(
^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 92, in resolve
result = self._result = resolver.resolve(
^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 546, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 427, in resolve
failure_causes = self._attempt_to_pin_criterion(name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 239, in _attempt_to_pin_criterion
criteria = self._get_updated_criteria(candidate)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 230, in _get_updated_criteria
self._add_to_criteria(criteria, requirement, parent=candidate)
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 173, in _add_to_criteria
if not criterion.candidates:
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\resolvelib\structs.py", line 156, in __bool__
return bool(self._sequence)
^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 155, in __bool__
return any(self)
^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 143, in <genexpr>
return (c for c in iterator if id(c) not in self._incompatible_ids)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 47, in _iter_built
candidate = func()
^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\factory.py", line 206, in _make_candidate_from_link
self._link_candidate_cache[link] = LinkCandidate(
^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 293, in __init__
super().__init__(
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 156, in __init__
self.dist = self._prepare()
^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 225, in _prepare
dist = self._prepare_distribution()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 304, in _prepare_distribution
return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 516, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 587, in _prepare_linked_requirement
local_file = unpack_url(
^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 166, in unpack_url
file = get_http_url(
^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 107, in get_http_url
from_path, content_type = download(link, temp_dir.path)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\network\download.py", line 147, in __call__
for chunk in chunks:
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\cli\progress_bars.py", line 53, in _rich_progress_bar
for chunk in iterable:
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_internal\network\utils.py", line 63, in response_chunks
for chunk in response.raw.stream(
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 622, in stream
data = self.read(amt=amt, decode_content=decode_content)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 560, in read
with self._error_catcher():
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\contextlib.py", line 155, in __exit__
self.gen.throw(typ, value, traceback)
File "C:\Users\Arif\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 443, 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.
答案1
您收到的错误消息表明暂停尝试从 Python 包索引 (PyPI) 下载包时出现此问题。此问题可能是由于互联网连接速度慢或不稳定或服务器出现临时问题。以下是解决此问题的一些建议：
检查您的互联网连接：确保您有稳定的互联网连接，然后尝试再次运行安装命令。
升级 pip：通过运行以下命令确保您拥有最新版本的 pip：
python -m pip 安装--升级pip
使用不同的软件包索引镜像：PyPI 在全球拥有多个镜像。您可以通过在安装命令中添加 --index-url 选项来尝试使用不同的镜像。例如：
pip 安装请求 --index-url=https://pypi.org/simple/
我希望这些建议能帮助您解决超时问题并成功安装“请求”模块。如果您还有其他问题，请随时提问。