fix: coerce get_sp500_prices return value to Series for yfinance >= 0.2 - #17
Merged
Merged
Conversation
yfinance >= 0.2 returns a DataFrame with multi-level columns for single-ticker downloads, so `yfinance.download(...)["Close"]` yielded a single-column DataFrame instead of a Series. Callers (e.g. PerformanceMetrics auto-fetch path) that downstream did pd.Series(...) on the result hit "The truth value of a DataFrame is ambiguous" in plot_returns_distribution. Coerce to Series at the boundary so the documented return type holds across yfinance versions. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
yfinance >= 0.2 returns a DataFrame with multi-level columns for single-ticker downloads, so
yfinance.download(...)["Close"]yielded a single-column DataFrame instead of a Series. Callers (e.g. PerformanceMetrics auto-fetch path) that downstream did pd.Series(...) on the result hit "The truth value of a DataFrame is ambiguous" in plot_returns_distribution. Coerce to Series at the boundary so the documented return type holds across yfinance versions.