Question

I found this class to take a space delimited file and if there are multiple spaces, they will be treated as a single separator. How do I see the effects of this on a file?

class FH:

    def __init__(self, fh):
        self.fh = fh

    def close(self):
        self.fh.close()

    def seek(self, arg):
        self.fh.seek(arg)

    def fix(self, s):
        return ' '.join(s.split())

    def next(self):
        return self.fix(self.fh.next())

    def __iter__(self):
        for line in self.fh:
            yield self.fix(line)

so how do I see this work on a file? I’ve created a file with multiple spaces to see it in action.

I’ve done this:

In [31]: FH('classfhtry.csv')
Out[31]: 

In [32]: r = FH('classfhtry.csv')

In [33]: r
Out[33]: 

In [34]: print r
-------> print(r)


In [35]: f = open(r)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)

/home/blahblahblah/Documents/Programming/EXERCISES/piece.py in ()
----> 1 
      2 
      3 
      4 
      5 

TypeError: coercing to Unicode: need string or buffer, instance found

I want to see my class in action! Thanks for any 2cents!

Answer 1

Looks like this class takes a file (not a file name) in the initializer. Try:

r = FH(file('classfhtry.csv', 'r'))
for line in r:
    print line