Fix typo error and calculated value

[diegomvh]

Hi,
We using ponyguruma for a project hosted here in github.
The errors commited in this request was solved in the d3f0's repository of your project.
This commit fix two errors in _highlevel.py file:

First error:

import ponyguruma
pattern = ponyguruma.Regexp("\s+")
pattern.split("Hello World")

---

NameError Traceback (most recent call last)
/mnt/datos/workspace/GitHub/ponyguruma/build/lib.linux-i686-2.7/ in ()
----> 1 pattern.split("Hello World")

/mnt/datos/workspace/GitHub/ponyguruma/build/lib.linux-i686-2.7/ponyguruma/_highlevel.py in split(self, string, maxsplit, pos, endpos, flat)
179 startstring = string[:pos]
180 n = 0
--> 181 push_match = (flag and result.append or result.extend)
182 while 1:
183 state = regexp_match(self, string, pos, endpos, False)

NameError: global name 'flag' is not defined

Second error:

from ponyguruma import sre
pattern = sre.compile("(\w+)")
match = pattern.match("Hello World")
type(match.groups)
instancemethod
match.groups
<bound method SRE_Match.groups of <ponygurma.sre.SRE_Match object at 0x860ea6c>>
match.groups()
('Hello',)

match.groups()

TypeError Traceback (most recent call last)
/mnt/datos/workspace/GitHub/ponyguruma/build/lib.linux-i686-2.7/ in ()
----> 1 match.groups()
match.groups
('Hello',)
type(match.groups)
tuple

[jayvdb]

good changes, especially the Python 3 support

[jayvdb]

If you want to retain Python 2 support, that should be fairly easy to do.

[jayvdb]

I see https://github.com/prymatex/ponyguruma has this.

But nobody is claiming and publishing to

https://pypi.org/project/ponyguruma/

;-(