1 | | `ore_algebra` 0.3 is not working with Sage for a while and upstream does not release versions any more. Hence, we should stop shipping a broken package and fetch `ore_algebra` directly from upstream. |

| 1 | This ticket is to upgrade to `ore_algebra` 0.4, released 2019-05-17. |

| 2 | |

| 3 | Release page: |

| 4 | |

| 5 | - https://github.com/mkauers/ore_algebra/releases |

| 6 | |

| 7 | '''Tarball''' (to be renamed `ore_algebra-0.4.tar.gz`) |

| 8 | |

| 9 | - https://github.com/mkauers/ore_algebra/archive/0.4.tar.gz |

| 10 | |

| 11 | This is important since `ore_algebra` 0.3 does not work |

| 12 | with recent Sage versions. |

| 13 | |

| 14 | Alternatively, fetch `ore_algebra` directly from upstream. |