Question

Is there a way to write in file like in shell script but in python by doing something similar to this:

cat >> document.txt <<EOF
Hello world 1
var=$var
Hello world 2
EOF

?

Answer 1

If I understand the question correctly, you are referring to the here document feature in bash. I don’t think there is a direct equivalent in Python, but you can enter multi-line strings using """ (triple quotes) to delimit the start and end, e.g.

>>> long_string = """First
... Second
... Third"""
>>> print long_string
First
Second
Third

which you could then write to a file:

myFile = open("/tmp/testfile", "w")
myFile.write(long_string)
myFile.close()

and achieve much the same thing as your bash example.