Why do I can't use path when read

Question

when I simply write the path of my folder in a variable it works, but when I read the path in simple txt files it doesn't work Example :

path = "path to a folder" it works

but when I use :

path = lines[0] it doesn't works

My application go read the first line of txt file where my path is stocked and then it should stock it in the path variable.

I tried to see if the path was read correctly and yes, if I print the path it was always good but it doesn't work.

txt=open('/Users/patrick/Desktop/config.txt','r')
lines = txt.readlines()
path = lines[0]
files = []
for r, d, f in os.walk(path):
 for file in f:
 files.append(os.path.join(r, file))

• CodeIt: Try printing the path to see if it is showing the path or not.
• bereal: Please elaborate "doesn't work".

Answer 1

You need to strip white spaces and \n new line character because readlines returns lines including \n.

txt=open('/Users/patrick/Desktop/config.txt','r')
lines = [line.strip() for line in txt.readlines()]
path = lines[0]
files = []
for r, d, f in os.walk(path):
 for file in f:
 files.append(os.path.join(r, file))

Instead of using readlines, you can use read and split using \n character.

text = open('/Users/patrick/Desktop/config.txt','r').read()
lines = text.split("\n")
path = lines[0]
files = []
for r, d, f in os.walk(path):
 for file in f:
 files.append(os.path.join(r, file))

Hope it helps!

Answer 2

readline leaves the trailing linefeed in the line. Use:

path = lines[0].strip()