sudo -H python2 -m pip install -U pip # 更新 pip

Question

I am new in working with a kinect. I am using a Mac OS Sierra 10.12.6. Wheneve I try to update python with :

sudo -H python2 -m pip install -U pip  # Update pip

I got this error:

File "<stdin>", line 1
    sudo -H python2 -m pip install -U pip  # Update pip
          ^
SyntaxError: invalid syntax

How do we fix it?

Answer 1

What you are doing is running a console command inside python shell,

press ctrl+D to exit out of python shell and then try executing the pip upgrade command

to upgrade pip using pip itself

pip install --upgrade pip # run in console/terminal

to upgrade pip using python

python -m pip install --upgrade pip  # run in console/terminal

Answer 2

You can avoid the need for sudo if you're just a single user on your machine. This also avoids potentially messing around with the system-wide installation.

Use

python2.7 -m pip install pip --upgrade --user

The --user option will install the updated pip package just for your user account. Everytime you use python2.7 , it will use the newer pip package.
System routines will not see the newer pip package, nor be bothered by it.

python2.7 is needed, because python2 doesn't really exist: it's either python or python2.7 for version 2. Python version 3 doesn't (apparently) exist by default on macOS.