[venv] Cannot install Selenium on macOS

[Aidan Clarke]

I could successfully install many packages via pip but Selenium raises an
exception on different versions of macOS. It seems that it fails to create
a folder /usr/local/selenium.

First of all, is it the right place to report that possible bug? If not,
please tell me.

This is the output:

$ pip3 install selenium

Collecting selenium

Downloading selenium-3.11.0-py2.py3-none-any.whl (943kB)

100% |████████████████████████████████| 952kB 942kB/s

Installing collected packages: selenium

Exception:

Traceback (most recent call last):

File "/usr/local/lib/python3.6/site-packages/pip/basecommand.py", line
215, in main

status = self.run(options, args)

File "/usr/local/lib/python3.6/site-packages/pip/commands/install.py",
line 342, in run

prefix=options.prefix_path,

File "/usr/local/lib/python3.6/site-packages/pip/req/req_set.py", line
784, in install

**kwargs

File "/usr/local/lib/python3.6/site-packages/pip/req/req_install.py",
line 851, in install

self.move_wheel_files(self.source_dir, root=root, prefix=prefix)

File "/usr/local/lib/python3.6/site-packages/pip/req/req_install.py",
line 1064, in move_wheel_files

isolated=self.isolated,

File "/usr/local/lib/python3.6/site-packages/pip/wheel.py", line 377, in
move_wheel_files

clobber(source, dest, False, fixer=fixer, filter=filter)

File "/usr/local/lib/python3.6/site-packages/pip/wheel.py", line 316, in
clobber

ensure_dir(destdir)

File "/usr/local/lib/python3.6/site-packages/pip/utils/__init__.py", line
83, in ensure_dir

os.makedirs(path)

File
"/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/os.py",
line 210, in makedirs

makedirs(head, mode, exist_ok)

File
"/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/os.py",
line 210, in makedirs

makedirs(head, mode, exist_ok)

File
"/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/os.py",
line 210, in makedirs

makedirs(head, mode, exist_ok)

File
"/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/os.py",
line 220, in makedirs

mkdir(name, mode)

PermissionError: [Errno 13] Permission denied: '/usr/local/selenium'


pip version: 9.0.3

Python version: 3.6.5

macOS versions: 10.12.6 and 10.13.4