Problem building calibre 32-bit - 'QtCore/QtCoremod.sip' could not be found

[ajkessel]

I'm trying to build calibre from git for a 32-bit Debian system. I believe I've installed all build dependencies, but I'm getting this error on setup.py bootstrap:

Generating the rcc_backend bindings...
-c: (...)/src/calibre/build/pyqt/rcc_backend/rcc.sip: line 19 column 9: 'QtCore/QtCoremod.sip' could not be found

But QtCoremod.sip is on my system at /usr/lib/python3/dist-packages/PyQt6/bindings/QtCore/QtCoremod.sip.

I'm stuck for next steps. Any tips? Alternatively, does anyone have prebuilt 32 binaries?

[JSWolf]

Qt6 is 64-bit only. So to install Calibre 6, you need a 64-bit OS.

The last 32-bit version is 5.44.

[kovidgoyal]

google that error you will find lots of tips. typically it is caused by using a different python than the one PyQt is installed in.

[noogel666]

Originally Posted by kovidgoyal

google that error you will find lots of tips. typically it is caused by using a different python than the one PyQt is installed in.

some info...

(venv) ➜ calibre gitmaster) ./setup.py build --debug

*
* Running build
*

Building 27 extensions
SIPing 4 files...
/home/xyz/OpenSourceProjects/calibre/venv/bin/python -c from sipbuild.tools.build import main; main(); --verbose --no-make --qmake /usr/bin/qmake
Querying qmake about your Qt installation...
/usr/bin/qmake -query
These bindings will be built: rcc_backend.
Generating the rcc_backend bindings...
-c: /home/xyz/OpenSourceProjects/calibre/build/pyqt/rcc_backend/rcc.sip: line 19 column 9: 'QtCore/QtCoremod.sip' could not be found



(venv) ➜ calibre gitmaster) pip list
Package Version
------------ -------
packaging 21.3
pip 22.2.1
ply 3.11
pyparsing 3.0.9
PyQt-builder 1.13.0
PyQt6 6.3.1
PyQt6-Qt6 6.3.1
PyQt6-sip 13.4.0
setuptools 57.0.0
sip 6.6.2
toml 0.10.2
wheel 0.36.2


(venv) ➜ calibre gitmaster) python
Python 3.8.10 (default, Jun 22 2022, 20:18:18)
[GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.


(venv) ➜ calibre gitmaster) cat /proc/version
Linux version 5.15.0-43-generic (buildd@lcy02-amd64-026) (gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #46~20.04.1-Ubuntu SMP Thu Jul 14 15:20:17 UTC 2022

-----

64bit ubuntu 20.04.1 LTS system

I've tried many methods, but they can't work. Can you help me.

[kovidgoyal]

Dont use venvs. Install the dependencies in your system python.

[noogel666]

Originally Posted by kovidgoyal

Dont use venvs. Install the dependencies in your system python.

Spoiler:

➜ calibre gitmaster) pip list
Package Version
----------------------- --------------------
apsw 3.39.2.0
apturl 0.5.2
bcrypt 3.1.7
blinker 1.4
Brlapi 0.7.0
certifi 2019.11.28
chardet 3.0.4
Click 7.0
colorama 0.4.3
command-not-found 0.3
cryptography 2.8
cupshelpers 1.0
dbus-python 1.2.16
defer 1.0.6
distro 1.4.0
distro-info 0.23ubuntu1
duplicity 0.8.12.0
entrypoints 0.3
fasteners 0.14.1
future 0.18.2
html5lib 1.1
httplib2 0.14.0
idna 2.8
keyring 18.0.1
language-selector 0.1
launchpadlib 1.10.13
lazr.restfulclient 0.14.2
lazr.uri 1.0.3
lockfile 0.12.2
louis 3.12.0
lxml 4.9.1
macaroonbakery 1.3.1
Mako 1.1.0
MarkupSafe 1.1.0
mechanize 0.4.8
monotonic 1.5
netifaces 0.10.4
oauthlib 3.1.0
olefile 0.46
packaging 21.3
paramiko 2.6.0
pexpect 4.6.0
Pillow 7.0.0
pip 22.2.1
ply 3.11
protobuf 3.6.1
PyBluez 0.22
pycairo 1.16.2
pycryptodomex 3.6.1
pycups 1.9.73
PyGObject 3.36.0
PyJWT 1.7.1
pymacaroons 0.13.0
PyNaCl 1.3.0
pyparsing 3.0.9
PyQt-builder 1.13.0
PyQt6 6.3.1
PyQt6-Qt6 6.3.1
PyQt6-sip 13.4.0
pyRFC3339 1.1
python-apt 2.0.0+ubuntu0.20.4.7
python-dateutil 2.7.3
python-debian 0.1.36ubuntu1
pytz 2019.3
pyxdg 0.26
PyYAML 5.3.1
regex 2022.7.25
reportlab 3.5.34
requests 2.22.0
requests-unixsocket 0.2.0
screen-resolution-extra 0.0.0
SecretStorage 2.3.1
setuptools 45.2.0
simplejson 3.16.0
sip 6.6.2
six 1.14.0
systemd-python 234
toml 0.10.2
ubuntu-advantage-tools 27.6
ubuntu-drivers-common 0.0.0
ufw 0.36
unattended-upgrades 0.1
urllib3 1.25.8
usb-creator 0.3.7
wadllib 1.3.3
webencodings 0.5.1
wheel 0.34.2
xkit 0.0.0

➜ calibre gitmaster) python3
Python 3.8.10 (default, Jun 22 2022, 20:18:18)
[GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.


➜ calibre gitmaster) python3 setup.py build

*
* Running build
*

Building 27 extensions
SIPing 4 files...
/usr/bin/python3 -c from sipbuild.tools.build import main; main(); --verbose --no-make --qmake /usr/bin/qmake
Querying qmake about your Qt installation...
/usr/bin/qmake -query
These bindings will be built: rcc_backend.
Generating the rcc_backend bindings...
-c: /home/xyz/OpenSourceProjects/calibre/build/pyqt/rcc_backend/rcc.sip: line 19 column 9: 'QtCore/QtCoremod.sip' could not be found


I also tried to install pyqt5、pyqt5-qt5、pyqt5-sip, but it still doesn't work.Not even after uninstalling.

[kovidgoyal]

You need pyqt6 not pyqt5