How to import a file from outside the directory

[sylas]

I give you my solver.py file, and then the error message.

#solver.py
import init
#import numbers
import os
import csv
from kudoSudoku import sudoku
from pprint import pprint
filename = os.path.abspath('C:/Users/Sylvain/numbers.csv')
with open(filename) as csvfile:
    creader = csv.reader(csvfile, delimiter=' ')
    for row in creader:
        #do something with data
        print(', '.join(row))


with open('numbers.csv', newline='') as csvfile:
    puzzle=csv.reader(csvfile, delimiter=' ', quotechar='|')
    for row in puzzle:#origin
        print(', '.join(row))#originr
        matrix=row

    for i in range(9):
        matrix[i]=eval(matrix[i])

    print('sylvain')
    print(matrix)
    pprint(matrix)

    table = sudoku(matrix)
    result = table.solve()
    pprint(result)

And now the error message:

Error:
λ python solver.py                                                                                            
|[0,, 9,, 0,, 0,, 0,, 0,, 0,, 0,, 0]|, |[1,, 0,, 0,, 0,, 0,, 6,, 8,, 7,, 2]|, |[0,, 0,, 2,, 1,, 0,, 0,, 0,, 3,
, 0]|, |[0,, 0,, 1,, 0,, 4,, 0,, 0,, 6,, 0]|, |[0,, 2,, 0,, 0,, 0,, 0,, 0,, 0,, 5]|, |[0,, 0,, 9,, 0,, 7,, 0,,
 0,, 2,, 0]|, |[0,, 0,, 7,, 5,, 0,, 0,, 0,, 4,, 0]|, |[8,, 0,, 0,, 0,, 0,, 4,, 7,, 1,, 3]|, |[0,, 1,, 0,, 0,, 
0,, 0,, 0,, 0,, 0]|                                                                                           
Traceback (most recent call last):                                                                            
  File "solver.py", line 16, in <module>                                                                      
    with open('numbers.csv', newline='') as csvfile:                                                          
FileNotFoundError: [Errno 2] No such file or directory: 'numbers.csv'