Computer Science

a dynamic data structure that can contain items of different data types

a sequence of characters, e.g. letters, numbers, spaces, and other symbols.

the join method takes a list and joins each value in that list into one string.

Writing to CSV files

Records and dictionaries

Dictionary challenge

Reading CSV files

Careers in programming

Programming project - dictionaries I

Programming project - dictionaries II

This unit introduces pupils to the new data structures of records and dictionaries. They will develop a Caesar cipher encryption program using a dictionary as a cipher wheel. Pupils will explore how data can be read from and written to files and how this data can be used within a program.

Programming: dictionaries and data files

Each line in a CSV file represents a new {{}} or row.

Which error will this code produce?
```file = open("data.csv", "w")  
file.write([1, 2, 3])  
file.close()```

To convert a list of integers to strings, you can use the {{}}() function inside a loop.

To add a new row in a CSV file, you include the special character {{}} at the end of the string.

Each line in a CSV file is called a {{}}.

What method is used in Python to remove the character from a string?

The `split()` method turns a string into a {{}}.

What does this code do?
```line = "Aisha,0"
line = line.split(",")```

Using `read()` will read the {{}} of a file into one string.

Starter Quiz

What does CSV stand for?