Python subprocess.Popen() error (No such file or directory)

Question

I am trying to count the number of lines in a file using Python functions. Within the current directory, while os.system(\"ls\") finds the file, the command

Answer 1

The error occurs because you are trying to run a command named wc -l sorted_list.dat, that is, it is trying to find a file named like "/usr/bin/wc -l sorted dat".

Split your arguments:

["wc", "-l", "sorted_list.dat"]