How to read to a certain point in python for every line

Question

I tried to read from every line until the , so that I can edit it with format to add my text but I don't know which code to use to read until a certain point for every line. I tried to search on the web but I couldn't find anything

def pretty_print():
    file = open('kaartnummers', 'r')
    # print(file.read())
    print(file.read())

pretty_print()

Contents of kaartnummer text file

325255, Jan Jansen
334343, Erik Materus
235434, Ali Ahson
645345, Eva Versteeg
534545, Jan de Wilde
345355, Henk de Vries

Desired output:

Jan Jansen heeft kaartnummer: 325255
Erik Materus heeft kaartnummer: 334343
Ali Ahson heeft kaartnummer: 235434
Eva Versteeg heeft kaartnummer: 645345
Jan de Wilde heeft kaartnummer: 534545
Henk de Vrie heeft kaartnummer: 345355

Answer 1

with open("sample.txt", "r") as f:
    for line in content_list:
        if "," in line:
            line_sepperated = line.split(",")
            name = line_sepperated[1]
            num = line_sepperated[0]
            print(f'{name} heeft kaartnummer: {num}')
        else:
            print(line)

short explanation:

• open and read the file, and split it to list of lines
• iterate over the lines: if , exist - split the line by it and print by formatting wanted, if not - print the whole line

Answer 2

i tried it one more time but i am now struggling with one last thing i tried it in many ways if fprint with str(num) + '' and even . format but my result is still not what i want.

def pretty_print():
    line = open('kaartnummers', 'r')
    with open("kaartnummers", "r") as f:
        for line in line:
            if "," in line:
                line_sepperated = line.split(",")
                name = line_sepperated[1]
                num = line_sepperated[0]
                # print(f'{name} heeft kaartnummer: {num}')
                # print('{} heeft kaartnummer: {}' .format(*[name], *[num]))
                print(str(name)+' heeft kaartnummer: '+str(num))
            else:
                print(line)

pretty_print()

because if i print that code it will give this as a result

https://i.stack.imgur.com/7d7fy.png

 Jan Jansen
 heeft kaartnummer: 325255
 Erik Materus
 heeft kaartnummer: 334343
 Ali Ahson
 heeft kaartnummer: 235434
 Eva Versteeg
 heeft kaartnummer: 645345
 Jan de Wilde
 heeft kaartnummer: 534545
 Henk de Vries heeft kaartnummer: 345355

Answer 3

i fixed it.

the command that fixed it was

.replace("\n", "")

right now i have

print(f'{num} heeft kaartnummer: {name}'.replace("\n", ""))
print('{} heeft kaarnummer: {}'.format(*[num], *[name]).replace("\n", ""))
print(str(num).replace("\n", "")+' heeft kaartnummer: '+str(name).replace("\n", ""))

and it works on all the 3 print lines