Commits
Joris Van den Bossche authored and François Saint-Jacques committed 520feeccafc
ARROW-5309: [Python] clarify that Schema.append returns new object https://issues.apache.org/jira/browse/ARROW-5309. I didn't find any other append method in the Python API (except for Table.append_column, which is already clear about returning a new table). Author: Joris Van den Bossche <jorisvandenbossche@gmail.com> Closes #4599 from jorisvandenbossche/ARROW-5309-append-docs and squashes the following commits: 0c82dbc54 <Joris Van den Bossche> typo 78ea95044 <Joris Van den Bossche> ARROW-5309: clarify that Schema.append returns new object