Changes between Version 22 and Version 23 of PythonGuidelines

Timestamp:

Jul 3, 2013, 8:49:41 AM (11 years ago)

Author:

Sergio Correia

Comment:

Added section on how to work with distros that come with Python 3 as default - it is problematic with JHBuid, used by the Efl/Gtk ports

PythonGuidelines

@@ -106 +106 @@
 python_select -l
 }}}
+
+== Building the Efl/Gtk port in a distro which uses Python 3.x as default ==
+
+If you use a distro which has Python 3 as the default python for the system - such as [http://www.archlinux.org ArchLinux] -, you will have problems during the step that uses JHBuild to manage the dependencies of Efl and Gtk ports, since it requires Python 2.
+A solution to enable you to work properly with these ports in such distros would be to install [http://www.virtualenv.org/ virtualenv], which allows you to create virtual environments that may use different versions of python. 
+
+In ArchLinux, you would install virtualenv with the following command:
+{{{
+# pacman -S python2-virtualenv
+}}}
+
+[The next instructions are not distro-specific.]
+
+After installing virtualenv, create the place where the virtual environment will live:
+{{{
+$ mkdir -p ~/.virtualenvs/webkit
+}}}
+
+And create the actual virtual environment:
+{{{
+$ virtualenv2 ~/.virtualenvs/webkit
+}}}
+
+Now that the virtual environment exists, you will basically activate it before working on WebKit and once you are done, you can deactivate it.
+
+To activate the virtual environment:
+{{{
+$ source ~/.virtualenvs/webkit/bin/activate
+}}}
+
+Now your default python is Python 2, which allows you to use JHBuild and build WebKit without hassle.
+
+When you are done, simply deactivate the virtual environment:
+{{{
+$ deactivate
+}}}
+
+And you are back to your distro's default python.