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Bug#1098454: marked as done (RFP: python3-qutip-{qip,jax,qtrl,qoc} -- QuTiP)

Your message dated Tue, 1 Apr 2025 02:37:43 +0200
with message-id <b4b09a90-243e-47f8-ba6c-67e1ae37bffd@dj-l.de>
and subject line RFP transitioned to ITPs
has caused the Debian Bug report #1098454,
regarding RFP: python3-qutip-{qip,jax,qtrl,qoc} -- QuTiP
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1098454: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1098454
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: python3-qutip
Version: 5.0.3-1+b3
Severity: normal

Dear Maintainer,

If I run the following file with `python3`

  * https://github.com/YouDirk/quantum_examples/blob/5f016a0f1533b7540ecd1c1ab6c00112e4c43bc8/qutip/000_sim-circ-bellstate.py

then I get the following error output

```
./000_sim-circ-bellstate.py 
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/qutip/qip.py", line 5, in <module>
    import qutip_qip
ModuleNotFoundError: No module named 'qutip_qip'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/dirk/myfiles/quantum_examples/qutip/./000_sim-circ-bellstate.py", line 26, in <module>
    import qutip.qip.circuit as cc
  File "/usr/lib/python3/dist-packages/qutip/qip.py", line 9, in <module>
    raise ImportError(
    ...<3 lines>...
    )
ImportError: Importing 'qutip.qip' requires the 'qutip_qip' package. Install it with `pip install qutip-qip` (for more details, go to https://qutip-qip.readthedocs.io/).
```

The raising error in /usr/lib/python3/dist-packages/qutip/qip.py is
distributed in the Debian package `python3-qutip` here.  I found out
that

  * since QuTiP version 5.0.0 `qutip.qip` is an optional PIP-package
    https://github.com/qutip/qutip/discussions/1500

The source of the new QuTiP-QIP package you can find here

  * https://github.com/qutip/qutip-qip

----------------------------------------------------------------------

POSSIBLE SOLUTION
*****************

For my point of view there is a

  * new Debian package `python3-qutip-qip`

required which is recommended (or depending on) by `python3-qutip`.

Can anyone here maintain such a new package?

Greets, Dirk Lehmann

----------------------------------------------------------------------


-- System Information:
Debian Release: trixie/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.12-amd64 (SMP w/20 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages python3-qutip depends on:
ii  g++                                 4:14.2.0-1
ii  libc6                               2.40-6
ii  libgcc-s1                           14.2.0-16
ii  libstdc++6                          14.2.0-16
ii  python3                             3.13.1-2
ii  python3-dev                         3.13.1-2
ii  python3-matplotlib                  3.8.3-3+b3
ii  python3-numpy [python3-numpy-abi9]  1:1.26.4+ds-13
ii  python3-packaging                   24.2-1
ii  python3-scipy                       1.14.1-4

python3-qutip recommends no packages.

Versions of packages python3-qutip suggests:
ii  python-qutip-doc  5.0.3-1

-- no debconf information

--- End Message ---
--- Begin Message --- 
Closes: #1098454

The RFPs are now ITPs.  You can find them here:
* Bug#1101791: ITP: python-qutip-qip -- QuTiP package - Quantum Information Processing 
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1101791
* Bug#1101792: ITP: python-qutip-qtrl -- QuTiP package - Quantum Optimal Control 
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1101792
* Bug#1101793: ITP: python-qutip-qoc -- QuTiP package - Advanced Quantum Optimal Control 
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1101793

  * Bug#1101794: ITP: python-qutip -- QuTiP: Quantum Toolbox in Python
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1101794

To keep track for the current state of packaging take a look to this
thread

  * https://lists.debian.org/debian-science/2025/03/msg00002.html

Greets,
Dirk

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