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Python

Common Libraries Used

sys

time

os

pandas

Common

Taking Arguments

import sys
arguments = sys.argv 

Handling CSVs

Reading CSVs

with open('path/to/file','r') as file:
    file.read() # reads all the file into one string
    file.readlines() # reads the file into a list of lines
    file.close() # sometimes it helps to do this

Writing to CSVs

with open('/path/to/file','w') as file:
    file.write(string) # writes a string into the file
    file.writelines(list) # writes a list into the file line by line
    file.close() # sometimes it helps to do this

Appending to CSVs

with open('/path/to/file','a') as file:
    file.write(string) # same as with writing, same with file.writelines too
    file.close() # sometimes it helps to do this

os

Run Shell Command from Python

os.system('command')

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