gst-python: remove Python 2 support.

Requires pygobject3 with-python@2 option.

See #13133 and #31510.

Closes #35353.

Signed-off-by: FX Coudert <[email protected]>

Formula/gst-python.rb

@@ -3,53 +3,37 @@ class GstPython < Formula
   homepage "https://gstreamer.freedesktop.org/modules/gst-python.html"
   url "https://gstreamer.freedesktop.org/src/gst-python/gst-python-1.14.4.tar.xz"
   sha256 "d0fdb24f93b6d889f309d2f526b8ea9577e0084ff0a62b4623ef1aed52e85a1b"
+  revision 1
 
   bottle do
     sha256 "4412a3a8077e55aa5b1899ff7a89d726afad1f2142e61e93f91d9d54a0b87fe5" => :mojave
     sha256 "4fe5e40b6897c575602ff3d668bf9408fde1f9fcfea855fcf08067d06401f5ad" => :high_sierra
     sha256 "c6aa1db5ddb24672448b36d1cbf979cfc826fe57b382015bf35b5a5da646c506" => :sierra
   end
 
-  option "without-python", "Build without python 3 support"
-  option "with-python@2", "Build with python 2 support"
-
   depends_on "gst-plugins-base"
-  depends_on "python" => :recommended
-  depends_on "pygobject3" if build.with? "python"
-  depends_on "python@2" => :optional
-  depends_on "pygobject3" => "with-python@2" if build.with? "python@2"
-
-  link_overwrite "lib/python2.7/site-packages/gi/overrides"
+  depends_on "pygobject3"
+  depends_on "python"
 
   def install
-    if build.with?("python") && build.with?("python@2")
-      # Upstream does not support having both Python2 and Python3 versions
-      # of the plugin installed because apparently you can load only one
-      # per process, so GStreamer does not know which to load.
-      odie "You must pass both --without-python and --with-python@2 for python 2 support"
-    end
-
-    Language::Python.each_python(build) do |python, version|
-      # pygi-overrides-dir switch ensures files don't break out of sandbox.
-      system "./configure", "--disable-dependency-tracking",
-                            "--disable-silent-rules",
-                            "--prefix=#{prefix}",
-                            "--with-pygi-overrides-dir=#{lib}/python#{version}/site-packages/gi/overrides",
-                            "PYTHON=#{python}"
-      system "make", "install"
-    end
+    python_version = Language::Python.major_minor_version("python3")
+    # pygi-overrides-dir switch ensures files don't break out of sandbox.
+    system "./configure", "--disable-dependency-tracking",
+                          "--disable-silent-rules",
+                          "--prefix=#{prefix}",
+                          "--with-pygi-overrides-dir=#{lib}/python#{python_version}/site-packages/gi/overrides",
+                          "PYTHON=python3"
+    system "make", "install"
   end
 
   test do
     system "#{Formula["gstreamer"].opt_bin}/gst-inspect-1.0", "python"
-    Language::Python.each_python(build) do |python, _version|
-      # Without gst-python raises "TypeError: object() takes no parameters"
-      system python, "-c", <<~EOS
-        import gi
-        gi.require_version('Gst', '1.0')
-        from gi.repository import Gst
-        print (Gst.Fraction(num=3, denom=5))
-      EOS
-    end
+    # Without gst-python raises "TypeError: object() takes no parameters"
+    system "python3", "-c", <<~EOS
+      import gi
+      gi.require_version('Gst', '1.0')
+      from gi.repository import Gst
+      print (Gst.Fraction(num=3, denom=5))
+    EOS
   end
 end