On Jun 11, 1:08 pm, John Machin <sjmac...@lexicon.net> wrote: > Chris Rebert <clp2 <at> rebertia.com> writes: > > > > > > > On Wed, Jun 10, 2009 at 8:11 PM, higer<higerinbeijing <at> gmail.com> wrote: > > > I just want to compare two files,one from windows and the other from > > > unix. But I do not want to compare them through reading them line by > > > line. Then I found there is a filecmp module which is used as file and > > > directory comparisons. However,when I use two same files (one from > > > unix,one from windows,the content of them is the same) to test its cmp > > > function, filecmp.cmp told me false. > > > > Later, I found that windows use '\n\r' as new line flag but unix use > > > '\n', so filecmp.cmp think that they are different,then return false. > > > So, can anyone tell me that is there any method like IgnoreNewline > > > which can ignore the difference of new line flag in diffrent > > > platforms? If not,I think filecmp may be not a good file comparison > > > Nope, there's no such flag. You could run the files through either > > `dos2unix` or `unix2dos` beforehand though, which would solve the > > problem. > > Or you could write the trivial line comparison code yourself and just > > make sure to open the files in Universal Newline mode (add 'U' to the > > `mode` argument to `open()`). > > You could also file a bug (a patch to add newline insensitivity would > > probably be welcome). > > Or popen diff ... > > A /very/ /small/ part of the diff --help output: > > -E --ignore-tab-expansion Ignore changes due to tab expansion. > -b --ignore-space-change Ignore changes in the amount of white space. > -w --ignore-all-space Ignore all white space. > -B --ignore-blank-lines Ignore changes whose lines are all blank. > -I RE --ignore-matching-lines=RE Ignore changes whose lines all match RE. > --strip-trailing-cr Strip trailing carriage return on input. > > Cheers, > John
Tool can certainly be used to compare two files,but I just want to compare them using Python code. -- http://mail.python.org/mailman/listinfo/python-list
