[FIXED] Highlighting substrings in print statements

Issue

I have been trying to write a short script to be run directly in jupyter notebook. It simply scrolls through texts (400 words on avg.) in pandas df and asks user for a label.

I am struggling with finding an elegant solution that would highlight all substrings 'eu' in the text to be printed out.

In an other thread, I have found this printmd function that I use to highlight the "eu" substring. However, this only works for the first appearance and breaks the lines as well.

import sys
from IPython.display import clear_output
from IPython.display import Markdown, display

def printmd(string):
    display(Markdown(string))
printmd('**bold**')

labels = []

for i in range(0,len(SampleDf)):

    clear_output() # clear the output before displaying another article
    print(SampleDf.loc[i]['article_title'])

    lc = SampleDf.loc[i]['article_body'].lower() # the search is case sensitive
    pos = lc.find('eu') # where is the 'eu' mentioned

    print(SampleDf.loc[i]['article_body'][:pos])
    printmd('**eu**')

    print(SampleDf.loc[i]['article_body'][pos+2:])

    var = input("press y if the text is irrelevant" )

    if var == 'y':
        label = 0   # 0 for thrash
    else: 
        label = 1   # 1 for relevant

    labels.append(label)

I would love to get rid of the line breaks introduced by the separate print statements and highlight all mentions of the "eu".

Solution

Look at this as string processing, not an output problem. If I'm understanding your needs properly, this is a simple replace usage:

new_text = old_text.replace("eu", "**eu**")

If you still need your single-token mode, then suppressing a line feed is a simple matter of using the print parameter for that purpose:

print('**eu**', end='')

Answered By - Prune