TL;DR I want to know what is an option in Python, which might roughly correspond to the "-pe" option in Perl.
I used to use PERL for some time, but these days, I have been switching to PYTHON for its easiness and simplicity. When I needed to do simple text processing on the shell prompt, I had used perl -pe option. The following is an example.
grep foo *.txt | perl -pe 's/foo/bar/g'
To do a similar thing in Python, could someone explain to me how I can do this?