all-packages: Use callPackage where possible

pkgs/development/python-modules/irclib/default.nix

@@ -1,8 +1,8 @@
-a :  
-let 
+a @ {python, ...} :
+let
   fetchurl = a.fetchurl;
 
-  version = a.lib.attrByPath ["version"] "0.4.8" a; 
+  version = a.lib.attrByPath ["version"] "0.4.8" a;
   buildInputs = with a; [
     python
   ];
@@ -24,7 +24,7 @@ rec {
 
   /* doConfigure should be removed if not needed */
   phaseNames = ["doPatch" "installPythonPackage"];
-      
+
   name = "python-irclib-" + version;
   meta = {
     description = "Python IRC library";

pkgs/development/python-modules/libsexy/default.nix

@@ -1,8 +1,8 @@
-a :  
-let 
+a @ { python, libsexy, pkgconfig, libxml2, pygtk, pango, gtk, glib, ... } :
+let
   fetchurl = a.fetchurl;
 
-  version = a.lib.attrByPath ["version"] "0.1.9" a; 
+  version = a.lib.attrByPath ["version"] "0.1.9" a;
   buildInputs = with a; [
     pkgconfig pygtk
   ];

pkgs/development/python-modules/xmpppy/default.nix

@@ -1,8 +1,8 @@
-a :  
-let 
+a @ {python, setuptools, ... } :
+let
   fetchurl = a.fetchurl;
 
-  version = a.lib.attrByPath ["version"] "0.5.0rc1" a; 
+  version = a.lib.attrByPath ["version"] "0.5.0rc1" a;
   buildInputs = with a; [
     python setuptools
   ];
@@ -22,7 +22,7 @@ rec {
     mkdir -p $out/bin $out/lib $out/share $(toPythonPath $out)
     export PYTHONPATH=$PYTHONPATH:$(toPythonPath $out)
   '') ["defEnsureDir" "addInputs"];
-      
+
   name = "xmpp.py-" + version;
   meta = {
     description = "XMPP python library";