Problem downloading at all on new install

I had:
Python 3.5.4 (v3.5.4:3f56838, Aug 8 2017, 02:07:06) [MSC v.1900 32 bit (Intel)] on win32 Windows 7
instalooter 1.0.0-a.5

When I use:
$instalooter post "https://www.instagram.com/p/BFB6znLg5s1/"

traceback shows:
Traceback (most recent call last):
```
File "C:\Users\x96\AppData\Roaming\Python\Python35\site-packages\instalooter\c
li\__init__.py", line 170, in main
dlpbar_cls=None if args['--quiet'] else TqdmProgressBar)
File "C:\Users\x96\AppData\Roaming\Python\Python35\site-packages\instalooter\l
ooters.py", line 811, in download
new_only, condition)
File "C:\Users\x96\AppData\Roaming\Python\Python35\site-packages\instalooter\l
ooters.py", line 583, in _fill_media_queue
for media in six.moves.filter(_condition, medias_iter):
File "C:\Users\x96\AppData\Roaming\Python\Python35\site-packages\instalooter\l
ooters.py", line 775, in medias
info = self.info
File "C:\Users\x96\AppData\Roaming\Python\Python35\site-packages\instalooter\l
ooters.py", line 743, in info
self._info = self.get_post_info(self.code)
File "C:\Users\x96\AppData\Roaming\Python\Python35\site-packages\instalooter\l
ooters.py", line 319, in get_post_info
with self.session.get(url) as res:
AttributeError: __exit__
```
Any idea why? I also have updated 'requests' $pip install --user -U requests

If I added a directory, it will create a directory but nothing inside.