在python中通过命令行强制用户输入

Question

Say I'm running a script from the command line;

$python hello.py

This hello.py script will print 'Hello, Welcome!' And the in next line it prompts you to enter the name. Example.

$python hello.py

"Hello, welcome!"

What is you name?:<here you enter the name and press enter for the program to continue>

Instead I want to parse my name while calling the script.

$python hello.py <do something to parse the name>

I know we can import sys and the name can be called via args[1]

I was wondering if there is a way without modifying the code and changing the way we run the script via command line.

Answer 1

You can pipe the answer to the script:

echo "John Smith" | python hello.py

or use a here-string:

python hello.py <<<"John Smith"

If you want to feed more than just one line of input, a here-doc is easier:

python hello.py <<EOF
Answer to first question
Answer to second question
and so on
EOF