Skip to content

Point out that output of zip can be passed directly to dict #208

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
DJHills wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Point out that output of zip can be passed directly to dict #208

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 5 additions & 2 deletions Python/Module2_EssentialsOfPython/DataStructures_II_Dictionaries.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -446,10 +446,13 @@ for index in range(len(names)):
grades[name] = value
```

You should make use of the function [zip](https://www.pythonlikeyoumeanit.com/Module2_EssentialsOfPython/Itertools.html#zip) to pair the names and scores together in an iterable, and create the dictionary using a comprehension expression.
You should make use of the function [zip](https://www.pythonlikeyoumeanit.com/Module2_EssentialsOfPython/Itertools.html#zip) to pair the names and scores together in an iterable, which can then be passed to `dict` or used in a comprehension expression.

```python
# much better solution for creating `grades`
# pass iterable output of `zip` straight to `dict`
grades = dict(zip(names, scores))

# alternatively, iterate over output of `zip` using a comprehension expression
grades = {student:value for student, value in zip(names, scores)}

# updating Zoe's grade
Expand Down