imagepypelines.prevent_overwrite(filename, create_file=False)[source]

checks to see if a file or directory already exists and creates a new filename if it does. It can also create the file if specificed

when creating a file, this function assumes that if there is no file extension then it should create a directory


This function creates unique filenames by creating them and checking their current existence. THIS CAN BE A SLOW PROCESS – it is much more efficient to keep track of filenames internally in your application

  • filename (str) – the full file or directory path to be overwrite protected

  • create_file (bool) – Default is False boolean indicating whether or not to create the file before returning


the assuredly unique output filename

Return type