On Fri, 14 Jan 2005 09:12:49 -0500, Tim Peters <[EMAIL PROTECTED]> wrote:
>[Aki Niimura] >> I started to use pickle to store the latest user settings for the tool >> I wrote. It writes out a pickled text file when it terminates and it >> restores the settings when it starts. >... >> I guess DOS text format is creating this problem. > >Yes. > >> My question is "Is there any elegant way to deal with this?". > >Yes: regardless of platform, always open files used for pickles in >binary mode. That is, pass "rb" to open() when reading a pickle file, >and "wb" to open() when writing a pickle file. Then your pickle files >will work unchanged on all platforms. The same is true of files >containing binary data of any kind (and despite that pickle protocol 0 >was called "text mode" for years, it's still binary data). Tim, the manual as of version 2.4 does _not_ mention the need to use 'b' on OSes where it makes a difference, not even in the examples at the end of the chapter. Further, it still refers to protocol 0 as 'text' in several places. There is also a reference to protocol 0 files being viewable in a text editor. In other words, enough to lead even the most careful Reader of TFM up the garden path :-) Cheers, John -- http://mail.python.org/mailman/listinfo/python-list
