Python CLI Arguments and flags
How to Pass Arguments to a Python Script from the Command Line
1 Unnamed args
2 Named args (eg -a -arg)
We'll design a Python program which takes a username, age and email as
arguments via cli and use them as inputs to our program
First we'll work with Unnamed args
we will invoke the script using cli as
python filename.py username age email
Remember - filename is always the first argument
Now we'll invoke the script using the above method
Now let's move on to named args and invoke our program as either
python filename.py -u username -a age -e email
OR
python filename.py --username username -age age -email email
Remember u,a,e are shorthand for username, age and email which we can
use from cli. put a ":" after each of u,a and e as they all can accept value as input, in case of a read only arg don't use ":"
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