Question

15

How to create a deb package for a python3 script?

rated 0 times [ 15] [ 0] / answers: 1 / hits: 6794 / 1 Year ago, fri, december 2, 2022, 2:36:51

I have one Python file, main.py. I would like to be able to make a .deb package from it, and then be able to run main.py by typing the package name from the terminal. It is written in Python 3, so the package name should run:

python3 main.py

The only dependency I know of is python3.

I have tried creating a deb with a dependency of python3, and then running python3 packagename, but I get:

/usr/bin/python3: can't find '__main__' module in 'packagename'

Trying to use Debreate for package creation fails to open with :

Traceback (most recent call last):

  File "/usr/bin/debreate", line 12, in <module>

    import wx, sys, os, debreate, db, language, shutil

  File "/usr/share/debreate/debreate.py", line 23, in <module>

    import os, sys, wx.lib.dialogs, db, webbrowser, language, shutil, subprocess

  File "/usr/share/debreate/db.py", line 5, in <module>

    import wx, wx.combo, wx.lib.mixins.listctrl as LC, os, sys, language

ImportError: No module named combo

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afisird

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answered 1 Year ago ditery · Accepted Answer

Creating a .deb for a python3 script is very simple, and only requires a few changes in debian/rules and debian/control if you're familiar with python2 packaging.

In a nutshell:

Create the package source dir
```
mkdir myscript-0.1
```

Copy your python3 script (or the sample script below) to the source dir

cp ~/myscript myscript-0.1

cd myscript-0.1

Sample script:

#!/usr/bin/python3



if __name__ == '__main__':

    print("Hello world")

Create the packaging skeleton (debian/*)
```
dh_make -s --indep --createorig
```

Remove the example files

rm debian/*.ex debian/*.EX debian/README.*

Edit debian/control

Replace its content with the following text:

Source: myscript

Section: utils

Priority: optional

Maintainer: Name, 

Build-Depends: debhelper (>= 9), python3

Standards-Version: 3.9.5

X-Python3-Version: >= 3.2



Package: myscript

Architecture: all

Depends: ${misc:Depends}, ${python3:Depends}

Description: insert up to 60 chars description

 insert long description, indented with spaces

debian/install must contain the script to install as well as the target directory
```
echo myscript usr/bin > debian/install
```

Edit debian/rules

Replace its content with the following text:
```
#!/usr/bin/make -f



%:

    dh $@ --with=python3
```
Note: it's a TAB before dh $@, not four spaces!

Build the package
```
debuild -us -uc
```

You will get a few Lintian warnings/errors but your package is ready to be used:

../myscript_0.1-1_all.deb