Arch Linux

EBADFD

Member

Registered: 2025-03-31

Posts: 11

[SOLVED] gdb prettyprinting is broken (16.2)

I installed arch on a new disk. I immediately noticed gdb pretty printing wasn't working. How do I fix this?

To test you can execute gdb then write

python print(gdb.printing)

On arch I get

> Error occurred in Python: module 'gdb' has no attribute 'printing'

On my other OS where it works I get the output "<module 'gdb.printing' from '/usr/share/gdb/python/gdb/printing.py'>"

You can also test by making a ~/.gdbinit file with

python
gdb.printing.RegexpCollectionPrettyPrinter
end

Starting gdb will report

> .gdbinit:3: Error in sourced command file:
> Error occurred in Python: module 'gdb' has no attribute 'printing'

Last edited by EBADFD (2025-03-31 17:03:46)

seth

Member

Registered: 2012-09-03

Posts: 63,021

Re: [SOLVED] gdb prettyprinting is broken (16.2)

python import gdb.printing

Edit: https://man.archlinux.org/man/extra/gdb/gdbinit.5.en

Last edited by seth (2025-03-31 14:11:43)

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EBADFD

Member

Registered: 2025-03-31

Posts: 11

Re: [SOLVED] gdb prettyprinting is broken (16.2)

That worked. Thanks

Do you know if this was a breaking change from something arch did or was it gdb 16? I'm not sure why you linked to the man page it doesnt say anything about python or printing

seth

Member

Registered: 2012-09-03

Posts: 63,021

Re: [SOLVED] gdb prettyprinting is broken (16.2)

No idea whether that has changed at some point, but the mapage is for gdbinit what should™ allow you to automatize this (if you want to)

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