Update optional dependencies

README.rst

@@ -207,6 +207,7 @@ Notable mention must give the command '$ slpkg --removepkg <packages>' which can
 with all dependencies together after editing configuration file '/etc/slpkg/slpkg.conf' 
 (default is disable). Also you can check if packages used as dependency with additional option 
 "--check-deps". Option "--tag" allow to remove packages with by TAG.
+Optional you can use dialog utility with additional option "--checklist" (require python2-pythondialog).
 
 The last command is useful to print the entire contents of a package installed on the system with the
 command '$ slpkg -d <packages>'.
@@ -262,6 +263,8 @@ Slackware64: `slpkg-2.7.5-x86_64-1_dsw.txz <https://github.com/dslackw/slpkg/rel
 Optional dependencies
 ---------------------
 
+`python2-pythondialog <http://pythondialog.sourceforge.net/>`_ for dialog box interface
+
 `pygraphviz <http://pygraphviz.github.io/>`_ for drawing dependencies diagram
 
 `graph-easy <http://bloodgate.com/perl/graph/manual/index.html>`_ for drawing ascii dependencies diagram

setup.py

@@ -38,8 +38,8 @@ INSTALLATION_REQUIREMENTS = []
 DOCS_REQUIREMENTS = []
 TESTS_REQUIREMENTS = []
 OPTIONAL_REQUIREMENTS = [
-    "pygraphviz >= 1.3rc2",
-    "python2-pythondialog >= 3.3.0"
+    "python2-pythondialog >= 3.3.0",
+    "pygraphviz >= 1.3rc2"
 ]
 # Non-Python/non-PyPI optional dependencies:
 # ascii diagram: graph-easy (available from SBo repository)

slackbuild/README

@@ -3,3 +3,6 @@ and removes packages on Slackware based systems. It automatically
 computes dependencies and figures out what things should occur 
 to install packages. Slpkg makes it easier to maintain groups 
 of machines without having to manually update.
+
+Optional dependencies: python2-pythondialog, pygraphviz, graph-easy
+