I have a use case where I'm writing a small filter in Python which should be able to take output from the find command to filter and optionally pass it to other commands (like xargs), but also can be passed specific filenames for the input and/or output. Find can output it's filenames in null-terminated lines since it is possible to have newlines in a filename(yuck). There are workarounds that I can use to get the same thing done, essentially using TextIOWrapper in '' mode and scanning for any null terminators in the lines/splitting manually, but it would be nice if the TextIOWrapper supported null characters as line terminators for such use cases if possible.
Something line this: # configure output stream if(arg.input): input_stream = open(arg.input, "rt", newline="\000" if arg.null_lines else None) else: input_stream = sys.stdin input_stream.reconfigure(newline="\000" if arg.null_lines else None) # configure input stream Because my use case also has the ability to specify an encoding for the input/output, my workaround was originally to use codec.getreader/getwriter which turned out to be rather slow (the output of the pipe to the filter was in bursts), so since I'm currently using 3.5 and can't use reconfigure, currently involves detaching sys.stdin and reattaching to a new TextIOWrapper, setting buffering to 0 and newline to '' in null-terminated mode to get all the characters untranslated and manually scanning/splitting on null characters, though I'm sure there are better way to do this. Thanks, Brian Vanderburg II _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/BF7IQGAA54TSEBQ4MOC62XK7BSTJE3HO/ Code of Conduct: http://python.org/psf/codeofconduct/
