244 pyenv global 3.5.1

245 which python

246 python

247 pip install virtualenv

248 ls

249 pwd

250 ls

251 cd work/

252 ls

253 mkdir ttttt

254 cd ttttt/

255 virtualenv env

256 source env/bin/activate

257 python

258 pip install requests

259 python

260 deactivate

261 python

262 ll

263 pyenv global system

264 python

265 pip install virtualenv

266 sudo pip install virtualenv

267 history