CODEWITHSUNDEEP
pythonqtubuntucompilationconfigure
DrPepitozer
DrPepitozer

Reputation: 11

Can't find Python when building Qt from sources

We are trying to build the last version of Qt ( qt-15.5.0 ) from the sources on Ubuntu 20.04. Everything is running fine until we get the following error:

Project ERROR: Building QtQml requires Python.

Python is avalaible ( version 3.8 ), we even tried alias python=python3 and adding the path to python to $PATH but it didn't help. We can't find any info on this specific problem.

What we did:

$ wget http://download.qt.io/official_releases/qt/5.15/5.15.0/single/qt-everywhere-src-5.15.0.tar.xz
$ ./configure -prefix /username/dev/libraries/qt-5.15.0/install -xcb
$ make -j8
$ sudo make install

Upvotes: 0

Views: 2206

Answers (2)

Marko Filipovic
Marko Filipovic

Reputation: 63

Whilst manually setting the alias is a quick workaround, and it helps in many cases, this solution is less useful when dealing with systems that are managed in an automated fashion.

In order to come around this issue, in Ubuntu 22 at least there is a meta-package available, which solves the issue:

sudo apt install python-is-python3

Other distros may possibly have similar solutions readily available.

Upvotes: 4

RaminEsmzad
RaminEsmzad

Reputation: 48

$ vi .bashrc

Add the following alias to the .bashrc file.

alias python=python3

Save it and source the script.

$ source .bashrc

If it didn't work, use

$ which python3


/usr/bin/python3

$ sudo cp /usr/bin/python3 /usr/bin/python

Then you are ready to build your Qt!

Upvotes: 0

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