python -m pip install -U . doesn't work.

[matthiaskramm]

It ought to be possible to install pytype using pip by running

python -m pip install -U .

but doing so causes an error message.

[matthiaskramm]

Confirmed that

sudo python -m pip install -U .

works now. However, permissions might need tweaking - running pytype on my machine, after the above, throws:

IOError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/pytype/pytd/builtins/__builtin__.pytd'

[berkerpeksag]

That IOError looks interesting.

$ sudo python -m pip install -U .

worked for me on Ubuntu 12.04:

...
Successfully installed pytype-0.2

[matthiaskramm]

What happens if afterwards, you do

pytype some_file.py

?

[berkerpeksag]

It prints the output of the file I gave:

$ pytype x.py 
class Foo(object):
    pass

(I admit it's not a good file to test it :))

[matthiaskramm]

Ok, it's probably just a bad umask on my machine.
Closing, will reopen in case anybody else has the same problem.