CSV files

Read first Task 37

csv.DictReader turns each row into a dict keyed by the header.

Definition and example

CSV files is the focus of this lesson. csv.DictReader turns each row into a dict keyed by the header. The task asks you to apply that idea in a small example: Which reader gives dict rows. Before you run the code, predict what should happen. Then Inspect the printed output and the values your program uses and compare it with your prediction. If the result differs, change one relevant line and run it again. Testing one change at a time makes the cause of a result easier to understand.

Python 1 automatic check Files, errors and modules

Code editor Ctrl + Enter runs

# TASK csv-files-07: Which reader gives dict rows?
# STEPS: Read the explanation. Change one relevant line at a time, then run the code and compare the result with the check on the right.
rows = [{'name':'TODO'}]
print(rows[0]['name'])

Run your code to see the output and the checks.

Your result

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Write your code in the middle column and press Run code.

Checks on this task:

The program output must match “Sara”.

The task and step-by-step instructions are written as comments at the top of the editor. Change one relevant line, run it, and compare the result with these checks.

Incorrect attempts before answer: 0 / 3

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CSV files

CSV files

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