问题：安装pandas报错
错误显示：
Requirement already satisfied: pandas in c:\python311\lib\site-packages (1.4.3)
Requirement already satisfied: python-dateutil>=2.8.1 in c:\python311\lib\site-packages (from pandas) (2.8.2)
Collecting pytz>=2020.1
Using cached pytz-2022.7-py2.py3-none-any.whl (499 kB)
Collecting numpy>=1.21.0
Downloading numpy-1.24.1-cp311-cp311-win_amd64.whl (14.8 MB)
---------------------------------------- 0.0/14.8 MB 9.7 kB/s eta 0:25:24
ERROR: Exception:
Traceback (most recent call last):
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 437, in _error_catcher
yield
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 560, in read
data = self._fp_read(amt) if not fp_closed else b""
^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 526, in _fp_read
return self._fp.read(amt) if amt is not None else self._fp.read()
^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 90, in read
data = self.__fp.read(amt)
^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\http\client.py", line 465, in read
s = self.fp.read(amt)
^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\socket.py", line 705, in readinto
return self._sock.recv_into(b)
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\ssl.py", line 1278, in recv_into
return self.read(nbytes, buffer)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\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:\Python311\Lib\site-packages\pip\_internal\cli\base_command.py", line 160, in exc_logging_wrapper
status = run_func(*args)
^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\cli\req_command.py", line 247, in wrapper
return func(self, options, args)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\commands\install.py", line 400, in run
requirement_set = resolver.resolve(
^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 92, in resolve
result = self._result = resolver.resolve(
^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 481, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 373, in resolve
failure_causes = self._attempt_to_pin_criterion(name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 213, in _attempt_to_pin_criterion
criteria = self._get_updated_criteria(candidate)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 204, in _get_updated_criteria
self._add_to_criteria(criteria, requirement, parent=candidate)
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 172, in _add_to_criteria
if not criterion.candidates:
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\structs.py", line 151, in __bool__
return bool(self._sequence)
^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 155, in __bool__
return any(self)
^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 143, in
return (c for c in iterator if id(c) not in self._incompatible_ids)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 47, in _iter_built
candidate = func()
^^^^^^
File "C:\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:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 297, in __init__
super().__init__(
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 162, in __init__
self.dist = self._prepare()
^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 231, in _prepare
dist = self._prepare_distribution()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 308, in _prepare_distribution
return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 491, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 536, in _prepare_linked_requirement
local_file = unpack_url(
^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 166, in unpack_url
file = get_http_url(
^^^^^^^^^^^^^
File "C:\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:\Python311\Lib\site-packages\pip\_internal\network\download.py", line 147, in __call__
for chunk in chunks:
File "C:\Python311\Lib\site-packages\pip\_internal\cli\progress_bars.py", line 53, in _rich_progress_bar
for chunk in iterable:
File "C:\Python311\Lib\site-packages\pip\_internal\network\utils.py", line 63, in response_chunks
for chunk in response.raw.stream(
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 621, in stream
data = self.read(amt=amt, decode_content=decode_content)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 559, in read
with self._error_catcher():
File "C:\Python311\Lib\contextlib.py", line 155, in __exit__
self.gen.throw(typ, value, traceback)
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 442, 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.
我的解答思路和尝试过的方法：
最开始只显示 需要update pip，我按照csdnde 的教程删除了pip的文件，然后重新安装
然后再win+r pip install pandas 结果还是报错，具体页面如上
显示pandas已经安装了，你试试能不能用呢？
pandas in c:\python311\lib\site-packages (1.4.3)
谢谢您，这个问题解决了
（当时是网上下载了pandas的安装包，然后放在了文件夹Python311\Lib\site-packages里面，然后win+r pip install pandas,看来成功了）
但是现在出现新的问题，还是无法解决读取文件的问题
File c:\Python311\Lib\site-packages\pandas\__init__.py:16
13 missing_dependencies.append(f"{dependency}: {e}")
15 if missing_dependencies:
---> 16 raise ImportError(
17 "Unable to import required dependencies:\n" + "\n".join(missing_dependencies)
18 )
19 del hard_dependencies, dependency, missing_dependencies
21 # numpy compat
ImportError: Unable to import required dependencies:
numpy: No module named 'numpy'
我尝试了 pip install numpy ,但是安装报错
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)")': /simple/numpy/
Collecting numpy
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out. (read timeout=15)")': /packages/73/39/f104eb30cc3da44d1e10622418c5e6eb5ac224f0f20c97dba44cf2de2af9/numpy-1.24.1-cp311-cp311-win_amd64.whl
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.HTTPSConnection object at 0x0000027FEF449390>, 'Connection to files.pythonhosted.org timed out. (connect timeout=15)')': /packages/73/39/f104eb30cc3da44d1e10622418c5e6eb5ac224f0f20c97dba44cf2de2af9/numpy-1.24.1-cp311-cp311-win_amd64.whl
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out. (read timeout=15)")': /packages/73/39/f104eb30cc3da44d1e10622418c5e6eb5ac224f0f20c97dba44cf2de2af9/numpy-1.24.1-cp311-cp311-win_amd64.whl
Downloading numpy-1.24.1-cp311-cp311-win_amd64.whl (14.8 MB)
---------------------------------------- 0.1/14.8 MB 7.7 kB/s eta 0:31:51
ERROR: Exception:
Traceback (most recent call last):
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 437, in _error_catcher
yield
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 560, in read
data = self._fp_read(amt) if not fp_closed else b""
^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 526, in _fp_read
return self._fp.read(amt) if amt is not None else self._fp.read()
^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 90, in read
data = self.__fp.read(amt)
^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\http\client.py", line 465, in read
s = self.fp.read(amt)
^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\socket.py", line 705, in readinto
return self._sock.recv_into(b)
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\ssl.py", line 1278, in recv_into
return self.read(nbytes, buffer)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\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:\Python311\Lib\site-packages\pip\_internal\cli\base_command.py", line 160, in exc_logging_wrapper
status = run_func(*args)
^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\cli\req_command.py", line 247, in wrapper
return func(self, options, args)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\commands\install.py", line 400, in run
requirement_set = resolver.resolve(
^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 92, in resolve
result = self._result = resolver.resolve(
^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 481, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 348, in resolve
self._add_to_criteria(self.state.criteria, r, parent=None)
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 172, in _add_to_criteria
if not criterion.candidates:
File "C:\Python311\Lib\site-packages\pip\_vendor\resolvelib\structs.py", line 151, in __bool__
return bool(self._sequence)
^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 155, in __bool__
return any(self)
^^^^^^^^^
File "C:\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:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 47, in _iter_built
candidate = func()
^^^^^^
File "C:\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:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 297, in __init__
super().__init__(
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 162, in __init__
self.dist = self._prepare()
^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 231, in _prepare
dist = self._prepare_distribution()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 308, in _prepare_distribution
return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 491, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 536, in _prepare_linked_requirement
local_file = unpack_url(
^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_internal\operations\prepare.py", line 166, in unpack_url
file = get_http_url(
^^^^^^^^^^^^^
File "C:\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:\Python311\Lib\site-packages\pip\_internal\network\download.py", line 147, in __call__
for chunk in chunks:
File "C:\Python311\Lib\site-packages\pip\_internal\cli\progress_bars.py", line 53, in _rich_progress_bar
for chunk in iterable:
File "C:\Python311\Lib\site-packages\pip\_internal\network\utils.py", line 63, in response_chunks
for chunk in response.raw.stream(
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 621, in stream
data = self.read(amt=amt, decode_content=decode_content)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 559, in read
with self._error_catcher():
File "C:\Python311\Lib\contextlib.py", line 155, in __exit__
self.gen.throw(typ, value, traceback)
File "C:\Python311\Lib\site-packages\pip\_vendor\urllib3\response.py", line 442, 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.
（用的编译器是 VScode 中的jupyter）
这个问题主要是下载numpy包超时导致的，使用pip命令时使用 -i 参数指定国内的下载源可以解决
pip install numpy -i https://pypi.tuna.tsinghua.edu.cn/simple