Dieter,
Thanks. What about using the append function to remove duplicate outputs
entered on or thereafter line no. 9, i.e.,
LIST_APPEND(i) Calls list.append(TOS[-i], TOS). Used to implement list
comprehensions. While the appended value is popped off, the list object remains
on the stack so that it is available for further iterations of the loop. URL
link available at
https://docs.python.org/2.7/library/dis.html?highlight=append%20list#opcode-LIST_APPEND
What is the command line for such an append function?
Hal
Sent from Surface
Sent from Surface
From: dieter
Sent: Thursday, July 30, 2015 11:22 PM
To: python-list@python.org
<ltc.hots...@gmail.com> writes:
> ...
> Why is open not defined in the following code:NameError: name 'open' is not
> defined
>
> Code reads as follows:
>
> fname = raw_input("Enter file name: ")
> if len(fname) < 1 : fname = "mbox-short.txt"
> fh = open(fname)
> count = 0
> for line in fh:
> if not line.startswith('From'): continue
> line2 = line.strip()
> line3 = line2.split()
> line4 = line3[1]
> print line4
> count = count + 1
> print "There were", count, "lines in the file with From as the first word"
You might execute the code above in a "restricted execution environment"
(one where "__builtins__" is not the typical "__builtin__" module --
that's how "open" (and other builtins) is found).
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