I use depot_tools on Gentoo/Linux for download and build webrtc sdk.
But I have error for fetch script:
File "/home/nis/develop/webrtc/depot_tools/fetch.py", line 65
    print 'Running: %s' % (' '.join(pipes.quote(x) for x in cmd))
                      ^
SyntaxError: invalid syntax

There's python version problem because my system default python version is 3.x but script required 2.7.x.

For everything script on depot_tools python version is undefined - it's may be dagerous to run on non python2 default system.