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$ sudo apt-get install software-properties-common
$ sudo add-apt-repository ppa:deadsnakes/ppa
$ sudo apt-get update
$ sudo apt-get install python3.8
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import os
# Get current working directory
wd = os.getcwd()
# List of directories in current working directory
os.listdir(wd)
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python [-bBdEiOQsRStuUvVWxX3?] [-c command | -m module-name | script | - ] [args]