Could you please edit this code to be able to encrypt an entire file of text if needed and expect a input file an output file and step distance?

code $=$ input$("$Enter the coded text $")$

distance $=$ int$($input$("$Enter the distance value $"))$

plainText $=""$

for ch in code:

$$ ordvalue $=$ ord$($ch$)$

$$ cipherValue $=$ ordvalue $-$ distance

$$ if cipherValue $<$ ord$(\text{'}$a$\text{'})$:

$$ cipherValue $=$ ord $(\text{'}$z$\text{'})-($distance$-($ord$(\text{'}$a$\text{'})-$ ordvalue $-1))$

$$ plainText $+=$ chr$($cipherValue$)$

print$($plainText$)$