#! python3 # renameDates.py - Renames filenames with American MM-DD-YYYY date format # to European DD-MM-YYYY. import shutil, os, re # Create a regex that matches files with the American date format. datePattern = re.compile(r"""^(.*?) # all text before the date ((0|1)?\d)- # one or two digits for the month ((0|1|2|3)?\d)- # one or two digits for the day ((19|20)\d\d) # four digits for the year (must start with 19 or 20) (.*?)$ # all text after the date """, re.VERBOSE) # Loop over the files in the working directory. for amerFilename in os.listdir('.'): mo = datePattern.search(amerFilename) # Skip files without a date. if mo == None: continue # Get the different parts of the filename. beforePart = mo.group(1) monthPart = mo.group(2) dayPart = mo.group(4) yearPart = mo.group(6) afterPart = mo.group(8) # Form the European-style filename. euroFilename = beforePart + dayPart + '-' + monthPart + '-' + yearPart + afterPart # Get the full, absolute file paths. absWorkingDir = os.path.abspath('.') amerFilename = os.path.join(absWorkingDir, amerFilename) euroFilename = os.path.join(absWorkingDir, euroFilename) # Rename the files. print('Renaming "%s" to "%s"...' % (amerFilename, euroFilename)) #shutil.move(amerFilename, euroFilename) # uncomment after testing