Surrounding words
Now, you want to perform some visualizations with your sentiment_analysis dataset. You are interested in the words surrounding python. You want to count how many times a specific word appears right before and after it.
Positive lookahead (?=) makes sure that first part of the expression is followed by the lookahead expression. Positive lookbehind (?<=) returns all matches that are preceded by the specified pattern.
The variable sentiment_analysis, containing the text of one tweet, and the re module are loaded in your session. You can use print() to view the data in the IPython Shell.
This exercise is part of the course
Regular Expressions in Python
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Positive lookahead
look_ahead = re.____(r"____(____)", ____)
# Print out
print(____)