Fredrik Lundh wrote: > "JZ" wrote: > > > >> import re > > >> line = "The food is under the bar in the barn." > > >> if re.search(r'foo(.*)bar',line): > > >> print 'got %s\n' % _.group(1) > > > > > > Traceback (most recent call last): > > > File "jz.py", line 4, in ? > > > print 'got %s\n' % _.group(1) > > > NameError: name '_' is not defined > > > > I forgot to add: I am using Python 2.3.4/Win32 (from ActiveState.com). The > > code works in my interpreter. > > only if you type it into the interactive prompt. see:
No, it doesn't work at all, anywhere. Did you actually try this? > > http://www.python.org/doc/2.4/tut/node5.html#SECTION005110000000000000000 > > "In interactive mode, the last printed expression is assigned to the variable _. > This means that when you are using Python as a desk calculator, it is some- > what easier to continue calculations /.../" > In the 3 lines that are executed before the exception, there are *no* printed expressions. Python 2.4 (#60, Nov 30 2004, 11:49:19) [MSC v.1310 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> import re >>> line = "The food is under the bar in the barn." >>> if re.search(r'foo(.*)bar',line): ... print 'got %s\n' % _.group(1) ... Traceback (most recent call last): File "<stdin>", line 2, in ? NameError: name '_' is not defined >>> -- http://mail.python.org/mailman/listinfo/python-list
