Reshape data from long to wide format

Create a pivot table from DataFrame

Read a CSV file into a DataFrame

Unpivot DataFrame from wide to long format

pandas

reshape

melt

pd.melt

pd.melt() transforms columns into rows, useful for tidy data format.

Melt selected columns into rows

pd.melt(df, id_vars=["id"], value_vars=["col1", "col2"])

View the first few rows of a DataFrame

Get concise summary of DataFrame

Group DataFrame using one or more columns