[英]Getting a permission denied error when installing flask with pip
我試圖在Arch Linux上運行pip install flask
,我收到以下錯誤:
Collecting itsdangerous>=0.24 (from flask)
Using cached https://files.pythonhosted.org/packages/dc/b4/a60bcdba945c00f6d608d8975131ab3f25b22f2bcfe1dab221165194b2d4/itsdangerous-0.24.tar.gz
Collecting MarkupSafe>=0.23 (from Jinja2>=2.10->flask)
Using cached https://files.pythonhosted.org/packages/4d/de/32d741db316d8fdb7680822dd37001ef7a448255de9699ab4bfcbdf4172b/MarkupSafe-1.0.tar.gz
Installing collected packages: Werkzeug, click, MarkupSafe, Jinja2, itsdangerous, flask
Running setup.py install for MarkupSafe ... done
Running setup.py install for itsdangerous ... error
Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-9u23zlnf/itsdangerous/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-r51zrnnv-record/install-record.txt --single-version-externally-managed --compile:
running install
running build
running build_py
creating build
creating build/lib
copying itsdangerous.py -> build/lib
running install_lib
copying build/lib/itsdangerous.py -> /usr/lib/python3.6/site-packages
byte-compiling /usr/lib/python3.6/site-packages/itsdangerous.py to itsdangerous.cpython-36.pyc
error: [Errno 13] Permission denied: '/usr/lib/python3.6/site-packages/__pycache__/itsdangerous.cpython-36.pyc.140591598548528'
----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-9u23zlnf/itsdangerous/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-r51zrnnv-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-9u23zlnf/itsdangerous/
You are using pip version 9.0.1, however version 10.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.`
這個錯誤是什么意思?
采用
pip install --user flask
代替。
您將收到“權限被拒絕”錯誤,這意味着您無權寫入特定位置。
當你使用pip install flask
, pip
將嘗試在/usr/lib/python3.6/../
flask
某處安裝包裝/usr/lib/python3.6/../
。 這個目錄需要root訪問權限,當你運行pip install flask
時你沒有。
通過使用--user
標志,您告訴pip
將軟件包安裝到您的主目錄,該目錄不需要root權限。
使用--user
標志安裝Python軟件包始終是一個好習慣,因為您不是在系統范圍內安裝該軟件包。 當您使用sudo pip install package_name
您將在系統范圍內安裝/升級包(具有依賴項)。 Python在一些系統中啟動關鍵系統組件,迫使系統安裝新版本的軟件包可能會破壞一些關鍵的系統組件。 通常,系統只是為了支持向后兼容而停留在特定的軟件包版本上,如果您嘗試將其安裝為sudo,可能會破壞它。
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