Bubble [main]

Compatibility with older versions of Python

Sat May 13 12:37:06 2023 +0300

 50_bubble.py |  4 ++--
 model.py     | 10 +++++-----
 subspace.py  |  8 ++++----
 utils.py     |  6 ++++--
 4 files changed, 15 insertions(+), 13 deletions(-)