使用 pip 错误安装 matplotlib（使用树莓派 3b）[重复]

Question

我无法安装 matplotlib。我正在使用树莓派 3b。

我正在使用这个

pip --no-cache-dir install matplotlib 

安装 matplotlib。一开始一切正常。但在 last 部分， 我收到此错误：

Exception:
Traceback (most recent call last):
File "/home/pi/.local/lib/python2.7/site-packages/pip/basecommand.py", 
line 215, in main
status = self.run(options, args)
File "/home/pi/.local/lib/python2.7/site-
packages/pip/commands/install.py", line 342, in run
prefix=options.prefix_path,
File "/home/pi/.local/lib/python2.7/site-packages/pip/req/req_set.py", 
line 784, in install
**kwargs
File "/home/pi/.local/lib/python2.7/site-
packages/pip/req/req_install.py", line 851, in install
self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
File "/home/pi/.local/lib/python2.7/site-
packages/pip/req/req_install.py", line 1064, in move_wheel_files
isolated=self.isolated,
File "/home/pi/.local/lib/python2.7/site-packages/pip/wheel.py", line 
345, in move_wheel_files
clobber(source, lib_dir, True)
File "/home/pi/.local/lib/python2.7/site-packages/pip/wheel.py", line 
316, in clobber
ensure_dir(destdir)
File "/home/pi/.local/lib/python2.7/site-packages/pip/utils/__init__.py", 
line 83, in ensure_dir
os.makedirs(path)
File "/usr/lib/python2.7/os.py", line 157, in makedirs
mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-
packages/backports.functools_lru_cache-1.5.dist-info'

Answer 1

如果您想在系统范围内安装它，请使用sudo -H pip install matplotlib，或者创建一个virualenv 并使用pip install matplotlib 将其安装在一个virtualenv 上。