regular expression: perl ==> python
fredrik at pythonware.com
Wed Dec 22 16:55:55 CET 2004
> >> 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:
"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 /.../"
the "_" symbol has no special meaning when you run a Python program, so the
"if re.search" construct won't work.
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