python-2.7.15-1 can not be rebuilded

[donald]

buczek@theinternet:~/git/pkg-scripts (rebuild-python2)$ git diff python-2.7.15-1.build.sh
diff --git a/python-2.7.15-1.build.sh b/python-2.7.15-1.build.sh
index a160586..9c6e806 100755
--- a/python-2.7.15-1.build.sh
+++ b/python-2.7.15-1.build.sh
@@ -4,8 +4,8 @@ PKG=python
 VERSION=2.7.15
 BUILD=1
 
-PREFIX=/pkg/$PKG-$VERSION-$BUILD
-# PREFIX=/dev/shm/pkg/$PKG-$VERSION-$BUILD
+# PREFIX=/pkg/$PKG-$VERSION-$BUILD
+PREFIX=/dev/shm/pkg/$PKG-$VERSION-$BUILD
 
 PATH=/bin:/usr/bin:/usr/sbin:/usr/local/package/bin:/usr/local/bin
 export PATH

buczek@theinternet:~/git/pkg-scripts (rebuild-python2)$ ./python-2.7.15-1.build.sh 
[...]
+ cd pygtk-2.24.0
+ ./configure --prefix=/dev/shm/pkg/python-2.7.15-1
[...]
checking for PYGOBJECT... no
configure: error: Package requirements (pygobject-2.0 >= 2.21.3) were not met:

No package 'pygobject-2.0' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables PYGOBJECT_CFLAGS
and PYGOBJECT_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.