We are first going to create a MapReduce program that will extract each of the posts from each blog file and store them as separate entries. As we are interested in the gender of the author of the posts, we will extract that too and store it with the post.
We can't do this in a Jupyter Notebook, so instead open a Python IDE for development. If you don't have a Python IDE you can use a text editor. I recommend PyCharm, although it has a larger learning curve and it is probably a bit heavy for just this chapter's code.
At the very least, I recommend using an IDE that has syntax highlighting and basic completion of variable names (that last one helps find typos in your code easily.
If you still can't find an IDE you like, you can write the code in an IPython Notebook and then click on File| Download As| Python. Save this file to a directory and run it as we outlined in...
