Print raw text to printer using Python in Windows?

Question

I am using Posiflex thermal receipt printer to print retail bills using python.

I tried with following

import os

os.startfile("C:/Users/TestFile.txt", "print")

but whenever I tried printing there is white space trailing the text resulting in wastage of paper. How can I print just raw text eliminating trailing white space?

please find image for clarity. I want to print it like 2nd one but the output is like the 1st one.

Well, does `testfile.txt` have trailing whitespace? If so, you'll have to open the file and remove the whitespace. — Morgan Thrapp, Nov 01 '16 at 18:08
What happens when you try printing the same file using the OS instead of python? — Nick is tired, Nov 01 '16 at 18:19
@NickA I opened the file with notepad and printed... same result — prabha korukonda, Nov 01 '16 at 21:05
@prabha korukonda, then the file or printer is the problem, try printing a longer file, it may be that the printer has a minimum print length or that the bottom margin is set too high in the printer settings. The printer manual should provide some help. — Nick is tired, Nov 01 '16 at 22:01
@NickA I tried printing to **MS OneNote** and observed same behavior. It seems problem is with file type. Can't we just print **raw text** using python instead of writing it to file and print?? — prabha korukonda, Nov 02 '16 at 02:07
@prabha korukonda Sorry but i can't be of more help, I don't know what's wrong. — Nick is tired, Nov 02 '16 at 18:49

score 0 · Answer 1 · edited May 23 '17 at 12:01

0

Strip the extra space:

one liner for removing blank lines from a file in python?

(.*?)\s*$ will give you capture group 1 as the text stripped of all trailing whitespace. Note: You must use the s (single line) flag to include \n within .

https://regex101.com/r/cgZNHz/2

edited May 23 '17 at 12:01

Community

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answered Nov 01 '16 at 18:26

TemporalWolf

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there are no trailing whitespaces in text file.. please check comments for more info – prabha korukonda Nov 05 '16 at 20:38

Print raw text to printer using Python in Windows?

1 Answers1