why it showed that the argument of my function was not defined?

why it showed that the argument of my function was not defined? - Printable Version

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why it showed that the argument of my function was not defined? - Tony - May-17-2018

here is my codes,I wrote a function which should be able to read a csv file and parse it into some useful form.

import csv


def load_atlas(filename):
    edited_file = []
    with open('filename', 'r') as csv_file:
        csv_reader = csv.reader(csv_file, delimiter='|')
        for lines in csv_reader:
            edited_file.append(lines)
    return edited_file
load_atlas(ala-acton.txt)

my problem is whenever i passed a filename into this function, it returns an error

Error:
NameError: name 'ala' is not defined

RE: why it showed that the argument of my function was not defined? - Larz60+ - May-17-2018

place it in quotes:

load_atlas('ala-acton.txt')

RE: why it showed that the argument of my function was not defined? - Tony - May-17-2018

(May-17-2018, 05:55 AM)Larz60+ Wrote: place it in quotes:
load_atlas('ala-acton.txt')

Thank you for your help.When i place in the quotes the program is going to open a file called "filename" which does not exist

here is the error message

Error:line 6, in load_atlas
    with open('filename', 'r') as csv_file:
FileNotFoundError: [Errno 2] No such file or directory: 'filename'

may I ask do we have a method to modify it?

(May-17-2018, 05:54 AM)Tony Wrote: #3

I got it!!!again,Thank you for you help,I was confused by this for a while.

RE: why it showed that the argument of my function was not defined? - Larz60+ - May-17-2018

you need to find the file.

RE: why it showed that the argument of my function was not defined? - buran - May-17-2018

import csv
 
def load_atlas(filename):
    edited_file = []
    with open(filename, 'r') as csv_file:
        csv_reader = csv.reader(csv_file, delimiter='|')
        for lines in csv_reader:
            edited_file.append(lines)
    return edited_file
load_atlas('ala-acton.txt')

you need quotes on line 10 and don't need them on line 5 (see above). That is assuming the txt file is in the current working directory