Question

I am trying to read files, inside a folder, reason is the number of files inside the folder is not fixed, but if there are 3 text folder, I have to read all the 3 files if 4 all the 4 text files.

Here is the code I’m trying to use, but comes up with an IOError:

for i in os.listdir("./RecordFolder"):
    print i

Output is:
record1.txt
record2.txt

Now the problem is reading the files:

for files in os.listdir("./RecordFolder"):
    filecontent = open(files).readlines()
    for lines in filecontent:
    print lines

Output:

IOError: [Errno 2] No such file or directory: 'record.txt'

Need some help here, thanks

Answer 1

The function os.listdir() only returns the file names, not the full paths, so you should use os.path.join() to add the directory names:

directory = "./RecordFolder"
for filename in os.listdir(directory):
    with open(os.path.join(directory, filename)) as f:
        for line in f:
            print line

(Also note that you shouldn’t use file.readlines() for simply iterating over the lines of the files, and that your code fails to close the file. These problems are fixed in the code above.)