Update wikipedia.py

[Gregory-Howard]

see #109

Description

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation, and I have updated it accordingly.

[bdewilde]

Instead of self.path, this should be self.filename, right?

[bdewilde]

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-4-4731d5f9560f> in <module>()
----> 1 for text in wp.texts(limit=5):
      2     print(text)

~/chartbeat/github/textacy/textacy/datasets/wikipedia.py in texts(self, min_len, limit)
    318         """
    319         n_pages = 0
--> 320         for _, title, content in self:
    321             text = strip_markup(content)
    322             if len(text) < min_len:

~/chartbeat/github/textacy/textacy/datasets/wikipedia.py in __iter__(self)
    199         if compat.is_python2 is False:
    200             events = ('end',)
--> 201             f = fileio.open_sesame(self.path, mode='rt', encoding="UTF-8")
    202         else:  # Python 2 can't open bzip in text mode :(
    203             events = (b'end',)

AttributeError: 'Wikipedia' object has no attribute 'path'

[Gregory-Howard]

Yes, sorry.
I don't even know where self.filename comes from. Probably a bad copy paste.