Division broken for LpVariable

[robertHowlett]

Details for the issue

What did you do?

import pulp

x = pulp.LpVariable("foo")
y = x * (1 / 3.0)  # works
y = x / 3.0  # fails

What did you expect to see?

The code should run successfully

What did you see instead?

The code failed with

Traceback (most recent call last):
  File "<snip>", line 5, in <module>
    y = x / 3.0  # fails
        ~~^~~~~
TypeError: unsupported operand type(s) for /: 'LpVariable' and 'float'

I think we're just missing

    def __truediv__(self, other):
        return self.__div__(other)

from LpVariable?

Useful extra information

What operating system are you using?

• Windows: Windows 11 Pro 24H2
• Linux: ( distro: ___ )
• Mac OS: ( version: ___ )
• Other: ___

I'm using python version:

• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• Other: Python 3.13.2

I installed PuLP via:

• pypi (python -m pip install pulp)
• github (python -m pip install -U git+https://github.com/coin-or/pulp)
• Other: ___ (conda?)

Did you also

• Tried out the latest github version: https://github.com/coin-or/pulp
• Searched for an existing similar issue: https://github.com/coin-or/pulp/issues?utf8=%E2%9C%93&q=is%3Aissue%20

[pchtsp]

@MBradbury what do you think? I remember you said that the divisions were broken since pulp version 3. But I'm not sure if you meant this.

[MBradbury]

I can't remember what the broken division issue was. In this case it is relatively straightforward that LpVariable only implements __div__ instead of __truediv__.