py-pip: add select groups for pip2 and pip3

python/pip_select/Portfile

@@ -5,7 +5,7 @@ PortGroup           select 1.0
 
 name                pip_select
 version             0.1
-revision            0
+revision            1
 categories          python
 license             BSD
 
@@ -26,8 +26,10 @@ distfiles
 use_configure       no
 build               {}
 destroot {
-    select::install pip ${filespath}/base
-    select::install pip ${filespath}/none
+    foreach bin {pip pip2 pip3} {
+        select::install $bin ${filespath}/$bin base
+        select::install $bin ${filespath}/none
+    }
 }
 
 livecheck.type      none

python/pip_select/files/pip2

@@ -0,0 +1 @@
+bin/pip2

python/pip_select/files/pip3

@@ -0,0 +1 @@
+bin/pip3

python/py-pip/Portfile

@@ -6,7 +6,7 @@ PortGroup           select 1.0
 
 name                py-pip
 version             19.1
-revision            0
+revision            1
 categories-append   www
 platforms           darwin
 license             MIT
@@ -74,15 +74,19 @@ if {${name} ne ${subport}} {
         delete ${destroot}${prefix}/bin/pip${python.branch}-${python.branch}
     }
 
-    select.group        ${python.rootname}
-    select.file         ${filespath}/${python.rootname}${python.version}
+    select.entries \
+        [list ${python.rootname} ${python.rootname}${python.version}] \
+        [list ${python.rootname}[string index ${python.version} 0] ${python.rootname}${python.version}]
 
     notes "
     To make the Python ${python.branch} version of pip the one that is run\
     when you execute the commands without a version suffix, e.g. 'pip', run:
 
-    port select --set ${select.group} [file tail ${select.file}]
     "
 
+    foreach entry ${select.entries} {
+        notes-append "port select --set $entry"
+    }
+
     livecheck.type      none
 }