Run pip within Sublime Text.

stpip.py

import sys
import os


def _packages_path():
    t = os.path.join(os.path.dirname(__file__), '..')
    return os.path.abspath(t)

SITE_PACKAGES = os.path.join(_packages_path(), 'Lib', 'site-packages')
_PACKAGING_MODS = os.path.join(_packages_path(), 'Lib', 'packaging')

for path in (SITE_PACKAGES, _PACKAGING_MODS):
    if path not in sys.path:
        sys.path.insert(0, path)


def _fix_pip_env():
    sys.argv = ['pip']
    sys.__stdout__ = type('', (object,), {'encoding': 'utf-8'})()
    sys.stdout.isatty = lambda: False
    fwrite = sys.stdout.write

    def safe_write(s):
        if isinstance(s, bytes):
            return fwrite(s.decode('utf-8'))
        return fwrite(s)

    sys.stdout.write = safe_write
    sys.stdout.buffer = sys.stdout
    sys.executable = 'C:\\Python33\\python.exe'


def install(name):
    _fix_pip_env()
    import pip
    pip.main(['install', '-t', SITE_PACKAGES, name])


# from User import stpip; stpip.install('requests')