Python NameError when attempting to use a user-defined class
- by Michael Herold
I'm getting a weird instance of a NameError when attempting to use a class I wrote. In a directory, I have the following file structure:
dir/
ReutersParser.py
test.py
reut-xxx.sgm
Where my custom class is defined in ReutersParser.py and I have a test script defined in test.py.
The ReutersParser looks something like this:
from sgmllib import SGMLParser
class ReutersParser(SGMLParser):
def __init__(self, verbose=0):
SGMLParser.__init__(self, verbose)
... rest of parser
if __name__ == '__main__':
f = open('reut2-short.sgm')
s = f.read()
p = ReutersParser()
p.parse(s)
It's a parser to deal with SGML files of Reuters articles. The test works perfectly. Anyway, I'm going to use it in test.py, which looks like this:
from ReutersParser import ReutersParser
def main():
parser = ReutersParser()
if __name__ == '__main__':
main()
When it gets to that parser line, I'm getting this error:
Traceback (most recent call last):
File "D:\Projects\Reuters\test.py", line 34, in <module>
main()
File "D:\Projects\Reuters\test.py", line 19, in main
parser = ReutersParser()
File "D:\Projects\Reuters\ReutersParser.py", line 38, in __init__
SGMLParser.__init__(self, verbose)
NameError: global name 'sgmllib' is not defined
For some reason, when I try to use my ReutersParser in test.py, it throws an error that says it cannot find sgmllib, which is a built-in module. I'm at my wits' end trying to figure out why the import won't work.
What's causing this NameError? I've tried importing sgmllib in my test.py and that works, so I don't understand why it can't find it when trying to run the constructor for my ReutersParser.
