CODEWITHSUNDEEP
pythonpython-3.x
bassyproductionz
bassyproductionz

Reputation: 63

How do i properly use the replace function within my code?

I am trying to remove the \n for every line from the external file then I split the line into 2 lists. However the replacing function is not replacing anything while the code is running without errors.

infile = open('Kaartnummers.txt', 'r')
field1 = []
field2 = []
for items in infile:
    items.replace('\n', '')
    fields = items.split(", ")
    field1.append(fields[0])
    field2.append(fields[1])


print(field1, field2)


infile.close()

The external file has the following contents:

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

Upvotes: 2

Views: 44

Answers (1)

Blckknght
Blckknght

Reputation: 104802

Strings in Python are immutable, so the replace method cannot work in place. It returns a new string, rather than changing the existing one. Try:

items = items.replace('\n', '') # save the return value from the replace call

Or perhaps you should use a method more specific to what you're trying to do (remove specific characters from the end of a string):

items = items.rstrip('\n') # or just .strip() if you don't mind removing other whitespace

Upvotes: 4

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