Files

File modes

• r
• w
• x write-only mode; creates a new file, but fails if the file path already exists.
• r+
• a
• b add to a mode for binary files (i.e., rb, wb)
• t text mode for file (automatically decoding bytes to Unicode)

Check file existence

def check_file_existence(file_name):
 try:
  file = open(file_name, 'r')
  file.close()
 except FileNotFoundError:
  print(f"{file_name} does not exist.")