List of files, just filenames, no directories.
filenames_no_dirs = next(os.walk(directory))
List files, no directories, full path.
filenames = [os.path.join(directory, fn) for fn in next(os.walk(directory))]
Indicate that your string variable is a raw string.
print(r'%s' % raw_string)
Locate the path of Python you are currently using.
python -c "import os, sys; print(os.path.dirname(sys.executable))"