This is what you get from reading Python docs #1380
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The stream 0 design team produced a file with smart quotes, which builds fine on most systems, but not all. That was valid UTF-8, which is a common default. However, it turns out that the CI system was configured with a different default encoding. I read the docs, and it seems like it might be a good idea to be more explicit about the things we care about: text mode, "universal" line endings, and UTF-8.