[英]Getting a permission denied error when installing flask with pip
I tried to run pip install flask
on Arch Linux and I get the following error: 我试图在Arch Linux上运行
pip install flask
,我收到以下错误:
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.`
What does this error mean? 这个错误是什么意思?
Use 采用
pip install --user flask
instead. 代替。
You are getting a Permission Denied error which means that you don't have access to write to a specific location. 您将收到“权限被拒绝”错误,这意味着您无权写入特定位置。
When you are using pip install flask
, pip
will try to install the package flask
somewhere in /usr/lib/python3.6/../
. 当你使用
pip install flask
, pip
将尝试在/usr/lib/python3.6/../
flask
某处安装包装/usr/lib/python3.6/../
。 This directory requires root access something you don't have at the time you were running pip install flask
. 这个目录需要root访问权限,当你运行
pip install flask
时你没有。
By using the --user
flag, you are telling pip
to install the package to your home directory which does not require root permissions. 通过使用
--user
标志,您告诉pip
将软件包安装到您的主目录,该目录不需要root权限。
It's always a good practice to install Python packages using the --user
flag because you are not installing that package system-wide. 使用
--user
标志安装Python软件包始终是一个好习惯,因为您不是在系统范围内安装该软件包。 When you use sudo pip install package_name
then you are installing/upgrading a package (with dependencies) system-wide. 当您使用
sudo pip install package_name
您将在系统范围内安装/升级包(具有依赖项)。 Python in some systems power-up critical system components, forcing the system to install a new version of a package might break some critical system component. Python在一些系统中启动关键系统组件,迫使系统安装新版本的软件包可能会破坏一些关键的系统组件。 Usually, systems are stuck to a specific package version just to support backwards-compatibility, you might break this if you try to install it as a sudo.
通常,系统只是为了支持向后兼容而停留在特定的软件包版本上,如果您尝试将其安装为sudo,可能会破坏它。
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