FAQ: Sorting and Filtering Rows - Let's Review

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This community-built FAQ covers the “Let’s Review” exercise from the lesson “Sorting and Filtering Rows”.

Paths and Courses
This exercise can be found in the following Codecademy content:

Getting Started with Python for Data Science

FAQs on the exercise Let’s Review

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2

Hi,

I feel like the Jupyter note-book is buggy.

I am finding the Python course hard but sometimes when I get the solution I see I HAVE put the correct code (well done me!) But the blue tick is rarely appearing on the left hand side. This is a bit disheartening.

3

I have the same, but I often forget to use CTRL+S to save the notebook. When I have saved it, it usually fixes the issue.

4

In assigment " 7. We’ve created a count of manual transmission vehicles by year. Add code to sort the result by year from earliest to latest. What do you notice?"

I don’t see a count anywhere? What did I miss?

1 Like
5

I can’t figure out assignment 7. I try to sort by year doing:

manual.sort_values(by=‘year’)

However, when I check the result with manual.head(), the years are all scrambled.

Is this what I’m supposed to notice, or am I doing something wrong?

6

you’re missing a key component, the brackets around the column name.

ex:

df.sort_values(by = ['column_name'])

See the docs:

https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.sort_values.html

2 Likes