https://www.runoob.com/try/runcode.php?filename=HelloWorld&type=python3
https://www.runoob.com/python3/python3-tutorial.html

#!/usr/bin/python3

import os
a1=os.listdir('/usr')
print(a1)
print("Hello, World!")


 > 
from collections import OrderedDict
import pprint
 
def CPUinfo():
    '''Return the info in /proc/cpuinfo
    as a dirctionary in the follow format:
    CPU_info['proc0']={...}
    CPU_info['proc1']={...}
    '''
    
    CPUinfo=OrderedDict()
    procinfo=OrderedDict()
 
    nprocs = 0
    with open('/proc/cpuinfo') as f:
        for line in f:
            if not line.strip():
                #end of one processor
                CPUinfo['proc%s' % nprocs]=procinfo
                nprocs = nprocs+1
                #Reset
                procinfo=OrderedDict()
            else:
                if len(line.split(':')) == 2:
                    procinfo[line.split(':')[0].strip()] = line.split(':')[1].strip()
                else:
                    procinfo[line.split(':')[0].strip()] = ''
    return CPUinfo

CPUinfo = CPUinfo()
for processor in CPUinfo.keys():
    print('CPUinfo[{0}]={1}'.format(processor,CPUinfo[processor]['model name']))