removed unused imports and pep8 fixes

[nawarkhede]

removed unused imports and pep8 fixes

[ghost]

Thank you for your pull request and welcome to our community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. In order for us to review and merge your code, please sign up at https://code.facebook.com/cla - and if you have received this in error or have any questions, please drop us a line at [email protected]. Thanks!

[ghost]

Thank you for signing our Contributor License Agreement. We can now accept your code for this (and any) Facebook open source project. Thanks!

[Emad-AiDev]

Hello,

I would like to use the code but it is not working.
The examples are for Python2 and I use Python3.
Would you please update the code, examples and some examples how to use it, i.e. how to search for hastag in Instagram.

Thank you,

[glerinsonum]

Can use those files python, in windows.