[Upgrade] 'dgstrf info' in stdout, update scipy

[DEUCE1957]

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• Searched the issues page for similar reports

• Read the relevant sections of the documentation

• Browse the tutorials and tests for usefull code snippets and examples of use

• Reproduced the issue after updating with pip install --upgrade pandapower (or git pull)

• Tried basic troubleshooting (if a bug/error) like restarting the interpreter and checking the pythonpath

Reproducible Example

In Scipy <1.14.1 (Pandapower currently uses 1.13.1) whenever we solve a Sparse matrix that is singular the following text is sent to stdout:

dgstrf info 1
dgstrf info 1
dgstrf info 1
dgstrf info 1
zgstrf info 2
dgstrf info 1
dgstrf info 1
dgstrf info 1
dgstrf info 1
dgstrf info 1

Since this comes from Scipy internally (compiled in C) there is no way to suppress it.

Solution

Thankfully this has been fixed in Scipy 1.14.1, see Issue 20933
If possible, can PandaPower upgrade to using Scipy 1.14.1?

Expected Behavior

Expect no messages to be written directly to stdout when encountering a singular sparse matrix.

Installed Versions

• Python: 3.12.7
• PandaPower: 2.14.11

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[vogt31337]

Good point, I'll add it to the list, but I don't consider this a bug, merely a nuissance.