Bugs item #1263656, was opened at 2005-08-18 22:35 Message generated for change (Comment added) made by kbk You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1263656&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: IDLE Group: Python 2.4 >Status: Closed >Resolution: Fixed Priority: 5 Submitted By: Bruce Sherwood (bsherwood) >Assigned to: Kurt B. Kaiser (kbk) Summary: IDLE on Mac Initial Comment: Copying code from some browsers into IDLE on the Mac can leave the file with only \r (13) at the ends of lines (Safari doesn't seem to have this problem). Then checksyntax() in ScriptBinding.py fails to convert these into \n (10), and compile() fails. The effect is that a program which Python is willing to run gets a syntax error in IDLE. I think the fix is in checksyntax() to add after source = re.sub(r"\r\n", "\n", source) the following statement, which converts unaccompanied \r's into \n's:: source = re.sub(r"\r", "\n", source) I've tried this and it works, but someone with a better overview of end-of-line issues in Python should think through whether this is the appropriate fix. ---------------------------------------------------------------------- >Comment By: Kurt B. Kaiser (kbk) Date: 2005-08-22 22:48 Message: Logged In: YES user_id=149084 ScriptBinding 1.62. Backport to 2.4.2 Seems harmless. Please check. IDLE retains line endings when loading code from a file. In this case OS X uses \r in the GUI and \r\n in the OS. Heaven knows what happens with fink/X11. IDLE expects \n internally, line endings are converted on I/O. What is your os.linesep under the conditions you mentioned? Regular expression pattern elements like r'\n' match the corresponding special characters; both bytes have to be in the pattern. You can do it by escaping the backslash in a regular string, '\n', which is also two bytes. But it's easier to use raw strings with regular expressions. ---------------------------------------------------------------------- Comment By: Bruce Sherwood (bsherwood) Date: 2005-08-19 12:16 Message: Logged In: YES user_id=34881 I should have said that this is in the environment of running IDLE on Mac OSX 10.4 under X11, using the fink distribution. I should also say that there seem to be issues not only of compiling but also of editing/display. In a browser, click on a .py file, select all the text, copy, paste into IDLE. With Safari, it looks right and it runs. With NetScape, it displays all on one line, and it doesn't run (syntax error). I haven't studied the actual code to see what if anything IDLE does to attempt to detect the nature of text pasted into an edit window, but clearly it's different coming from two popular browsers. ---------------------------------------------------------------------- Comment By: Bruce Sherwood (bsherwood) Date: 2005-08-19 00:23 Message: Logged In: YES user_id=34881 A footnote: Now I don't understand why the substitution searches for r"\r\n", since this would seem to be the raw string which represents slash, r, slash, n, not the two-character string "\r\n"....?? ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1263656&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
