python - how to automatically update pyserial to latesT? -


i have following code raise exception when pyserial version less 2.7,how programatically run pip install pyserial --upgrade automatically update latest version , ensure installed correctly?

   if py_ser_ver < 2.7:       raise standarderror("pyserial version 2.7 or greater required. version is: " + serial.version)

use os.system('python -m pip install pyserial --upgrade') or use subprocess

then once installation complete, check using python -m pip list command. work if pip not in path.

import os import subprocess  = os.system('python -m pip install pyserial --upgrade') if == 0:     d = subprocess.popen('python -m pip list', stdout = subprocess.pipe).communicate()     if 'pyserial' in d[0]:         print 'success'

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