本文介紹了pip3 install PyQt5 --user 失敗的處理方法，對大家解決問題具有一定的參考價值，需要的朋友們下面隨著小編來一起學習吧！
問題描述
嘗試通過 pip3 安裝 PyQt5 時出現錯誤.自動消息要我添加更多細節，但我沒有.所有細節都在代碼中.
Errors are present when trying to install PyQt5 via pip3. The automated message wants me to add more detail, but I don't have any. All the detail is in the code.
? ~ pip3 install PyQt5 --user
Collecting PyQt5
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7f2c97cfeb50>: Failed to establish a new connection: [Er
rno -2] Name or service not known')': /simple/pyqt5/
Using cached https://files.pythonhosted.org/packages/3a/fb/eb51731f2dc7c22d8e1a63ba88fb702727b324c6352183a32f27f73b8116/PyQt5-5.14.1.tar.gz
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing wheel metadata ... error
Complete output from command /usr/bin/python3 /usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py prepare_metadata_for_build_wheel /tmp/tmp3yjy_ooq:
Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 64, in prepare_metadata_for_build_wheel
hook = backend.prepare_metadata_for_build_wheel
AttributeError: module 'sipbuild.api' has no attribute 'prepare_metadata_for_build_wheel'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 207, in <module>
main()
File "/usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 197, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
File "/usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 67, in prepare_metadata_for_build_wheel
config_settings)
File "/usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py", line 95, in _get_wheel_metadata_from_wheel
whl_basename = backend.build_wheel(metadata_directory, config_settings)
File "/tmp/pip-build-env-1ms8fm3e/overlay/lib64/python3.7/site-packages/sipbuild/api.py", line 51, in build_wheel
project = AbstractProject.bootstrap('pep517')
File "/tmp/pip-build-env-1ms8fm3e/overlay/lib64/python3.7/site-packages/sipbuild/abstract_project.py", line 82, in bootstrap
project.setup(pyproject, tool, tool_description)
File "/tmp/pip-build-env-1ms8fm3e/overlay/lib64/python3.7/site-packages/sipbuild/project.py", line 387, in setup
self.apply_user_defaults(tool)
File "project.py", line 62, in apply_user_defaults
super().apply_user_defaults(tool)
File "/tmp/pip-build-env-1ms8fm3e/overlay/lib/python3.7/site-packages/pyqtbuild/project.py", line 86, in apply_user_defaults
super().apply_user_defaults(tool)
File "/tmp/pip-build-env-1ms8fm3e/overlay/lib64/python3.7/site-packages/sipbuild/project.py", line 202, in apply_user_defaults
self.builder.apply_user_defaults(tool)
File "/tmp/pip-build-env-1ms8fm3e/overlay/lib/python3.7/site-packages/pyqtbuild/builder.py", line 68, in apply_user_defaults
"specify a working qmake or add it to PATH")
sipbuild.pyproject.PyProjectOptionException
----------------------------------------
Command "/usr/bin/python3 /usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py prepare_metadata_for_build_wheel /tmp/tmp3yjy_ooq" failed with error code 1 in /tmp/pip-install-6w4gkbyk/PyQt5
嘗試直接安裝Qt，以獲取QMake的路徑，但無濟于事.
Tried installing Qt directly, in order to get QMake in path, but to no avail.
? ~ qmake --version
QMake version 2.01a
Using Qt version 4.8.7 in /usr/lib64
? ~
操作系統信息(Fedora 30)
OS information (Fedora 30)
5.2.11-200.fc30.x86_64 #1 SMP Thu Aug 29 12:43:20 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
更多版本
? ~ pip3 --version
pip 19.0.3 from /usr/lib/python3.7/site-packages/pip (python 3.7)
? ~ python3 --version
Python 3.7.5
? ~
推薦答案
我在安裝 tensorflow 時遇到了同樣的錯誤.升級setuptools"和pip"到最新的次要版本對我有用.
I had the same error installing tensorflow. Upgrading "setuptools" and "pip" to the latest minor version worked for me.
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