I tried logfile=file(r'test.txt','w+') logfile.write('datetime') test=logfile.readlines() print test
I got : Open an encoded file using the given mode and return a wrapped version providing transparent encoding/decoding. Note: The wrapped version will only accept the object format defined by the codecs, i.e. Unicode objects for most builtin codecs. Output is also codec dependent and will usually by Unicode as well. Files are always opened in binary mode, even if no binary mode was specified. This is done to avoid data loss due to encodings using 8-bit values. The default file mode is 'rb' meaning to open the file in binary read mode. encoding specifies the encoding which is to be used for the file. errors may be given to define the error handling. It defaults to 'strict' which causes ValueErrors to be raised in case an encoding and a hell lot of junk. Can anyone explain that??? AFAIK w+ was ment for opening a file for both writting and reading... Regards, Garry On Thu, 6 Jan 2005 12:03:27 +0530, Vishnu <[EMAIL PROTECTED]> wrote: > logfile = file(r'test.txt','w') > logfile.write('datetime') > logfile.close() # <- close the file > > logfile = file(r'test.txt','r') # <- Open the file in read mode > test=logfile.readlines() > > > ~Vishnu. > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > [EMAIL PROTECTED] > Sent: Thursday, January 06, 2005 11:53 AM > To: python-list@python.org > Subject: file.readlines() - gives me error (bad file descriptor) > > Hey guys, > > I can't figure this one out, why is this simple script giving me > problems? > > logfile=file(r'test.txt','w') > logfile.write('datetime') > test=logfile.readlines() > > When I run it I get the error message: > Traceback (most recent call last): > File "C:\Documents and Settings\Gregory\My Documents\Get New Great > Job\testfile.py", line 3, in ? > test=logfile.readlines() > IOError: [Errno 9] Bad file descriptor > > I'm running Windows XP, Python 2.3.3 (#51, Dec 18 2003, 20:22:39) [MSC > v.1200 32 bit (Intel)] on win32 > Any help would be greatly appricated. > > Thanks, > > Greg > > -- > http://mail.python.org/mailman/listinfo/python-list > > -- > http://mail.python.org/mailman/listinfo/python-list > -- Thanks and Regards, GSS -- http://mail.python.org/mailman/listinfo/python-list