[ISSUE] duplicity 1.2.1 incompatible with python3.12

[ISSUE] duplicity 1.2.1 incompatible with python3.12

[adud]

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New issue by adud on void-packages repository

https://github.com/void-linux/void-packages/issues/46572

Description:
### Is this a new report?

Yes

### System Info

Void 6.5.6_1 x86_64 GenuineIntel uptodate rFFFF

### Package(s) Affected

duplicity-1.2.1_3

### Does a report exist for this bug with the project's home (upstream) and/or another distro?

_No response_

### Expected behaviour

The package is supposed to do backups

### Actual behaviour

Any call to duplicity results in the following python error
```
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 30, in <module>
    from future import standard_library
  File "/usr/lib/python3.12/site-packages/future/standard_library/__init__.py", line 65, in <module>
    import imp
ModuleNotFoundError: No module named 'imp'
```

The bug comes from the [future](https://pypi.org/project/future/) package, which uses the `imp` module (removed in python 3.12). The use of this package has been removed since duplicity 2.0.0 (https://gitlab.com/duplicity/duplicity/-/blob/main/CHANGELOG.md) while dropping python2.7 support

This could explain the failure in #46170

### Steps to reproduce

`duplicity`

Re: [ISSUE] [CLOSED] duplicity 1.2.1 incompatible with python3.12

[Johnnynator]

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Closed issue by adud on void-packages repository

https://github.com/void-linux/void-packages/issues/46572

Description:
### Is this a new report?

Yes

### System Info

Void 6.5.6_1 x86_64 GenuineIntel uptodate rFFFF

### Package(s) Affected

duplicity-1.2.1_3

### Does a report exist for this bug with the project's home (upstream) and/or another distro?

_No response_

### Expected behaviour

The package is supposed to do backups

### Actual behaviour

Any call to duplicity results in the following python error
```
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 30, in <module>
    from future import standard_library
  File "/usr/lib/python3.12/site-packages/future/standard_library/__init__.py", line 65, in <module>
    import imp
ModuleNotFoundError: No module named 'imp'
```

The bug comes from the [future](https://pypi.org/project/future/) package, which uses the `imp` module (removed in python 3.12). The use of this package has been removed since duplicity 2.0.0 (https://gitlab.com/duplicity/duplicity/-/blob/main/CHANGELOG.md) while dropping python2.7 support

This could explain the failure in #46170

### Steps to reproduce

`duplicity`