1. Execution error
D:\>python3 D:\dbop\c1.py
Traceback (most recent call last):
File "D:\dbop\c1.py", line 2, in <module>
import lxml.html
ModuleNotFoundError: No module named 'lxml'
2. Try to install
D:\>pip install lxml
ERROR: Could not find a version that satisfies the requirement lxml (from versions: none)
ERROR: No matching distribution found for lxml
WARNING: You are using pip version 20.2.3; however, version 21.0.1 is available.
You should consider upgrading via the 'C:\Users\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\python.exe -m pip install --upgrade pip' command.
D:\>
3. Try to install wheel first
D:\>pip install wheel
Collecting wheel
Downloading wheel-0.36.2-py2.py3-none-any.whl (35 kB)
Installing collected packages: wheel
WARNING: The script wheel.exe is installed in 'C:\Users\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\Scripts' which is not on PATH.
Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed wheel-0.36.2
WARNING: You are using pip version 20.2.3; however, version 21.0.1 is available.
You should consider upgrading via the 'C:\Users\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\python.exe -m pip install --upgrade pip' command.
D:\>pip install lxml
Collecting lxml
Downloading lxml-4.6.2-cp39-cp39-win_amd64.whl (3.5 MB)
|█████████ | 983 kB 7.2 kB/s eta 0:05:53ERROR: Exception:
Traceback (most recent call last):
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_vendor\urllib3\response.py", line 437, in _error_catcher
yield
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_vendor\urllib3\response.py", line 519, in read
data = self._fp.read(amt) if not fp_closed else b""
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
data = self.__fp.read(amt)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\http\client.py", line 458, in read
n = self.readinto(b)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\http\client.py", line 502, in readinto
n = self.fp.readinto(b)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\socket.py", line 704, in readinto
return self._sock.recv_into(b)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\ssl.py", line 1241, in recv_into
return self.read(nbytes, buffer)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\ssl.py", line 1099, 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 "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\cli\base_command.py", line 228, in _main
status = self.run(options, args)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\cli\req_command.py", line 182, in wrapper
return func(self, options, args)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\commands\install.py", line 323, in run
requirement_set = resolver.resolve(
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 183, in resolve
discovered_reqs.extend(self._resolve_one(requirement_set, req))
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 388, in _resolve_one
abstract_dist = self._get_abstract_dist_for(req_to_install)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 340, in _get_abstract_dist_for
abstract_dist = self.preparer.prepare_linked_requirement(req)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\operations\prepare.py", line 467, in prepare_linked_requirement
local_file = unpack_url(
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\operations\prepare.py", line 255, in unpack_url
file = get_http_url(
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\operations\prepare.py", line 129, in get_http_url
from_path, content_type = _download_http_url(
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\operations\prepare.py", line 282, in _download_http_url
for chunk in download.chunks:
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\cli\progress_bars.py", line 168, in iter
for x in it:
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_internal\network\utils.py", line 64, in response_chunks
for chunk in response.raw.stream(
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\lib\contextlib.py", line 135, in __exit__
self.gen.throw(type, value, traceback)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.752.0_x64__qbz5n2kfra8p0\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.
WARNING: You are using pip version 20.2.3; however, version 21.0.1 is available.
You should consider upgrading via the 'C:\Users\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\python.exe -m pip install --upgrade pip' command.
D:\>
I still get an error after installing lxml, which may be caused by the network, so I can't get in directly with pin install lxml. Look at the prompt, it is said that the pip version is 20, and the latest is 21+. Try to upgrade to the latest version.
4. Upgrade pip to the latest version 21.0.1
D:\>python -m pip install --upgrade pip
Collecting pip
Downloading pip-21.0.1-py3-none-any.whl (1.5 MB)
|████████████████████████████████| 1.5 MB 14 kB/s
Installing collected packages: pip
WARNING: The scripts pip.exe, pip3.9.exe and pip3.exe are installed in 'C:\Users\laobanzhang\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\Scripts' which is not on PATH.
Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed pip-21.0.1
D:\>
After upgrading pip, and then installing lxml, but still reported an error, no success.
5. Install lxml in another way
Try it by specifying the address, and it succeeded.
D:\>pip install lxml -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
Looking in indexes: http://pypi.douban.com/simple/
Collecting lxml
Downloading http://pypi.doubanio.com/packages/68/30/d1eec1f0445f3e8aff1828e4a20c085b3afecea3c15e57072d960cc570c7/lxml-4.6.2-cp39-cp39-win_amd64.whl (3.5 MB)
|████████████████████████████████| 3.5 MB ...
Installing collected packages: lxml
Successfully installed lxml-4.6.2
D:\>
When you go to import again, it shows success and no more errors will be reported.
Python 3.9.2 (tags/v3.9.2:1a79785, Feb 19 2021, 13:44:55) [MSC v.1928 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import lxml;
>>> import lxml;
>>>