py-docopt: add py37 subport

- use default PyPI livecheck
- add size to checksums
- install files in post-destroot

python/py-docopt/Portfile

@@ -3,8 +3,7 @@
 PortSystem          1.0
 PortGroup           python 1.0
 
-set real_name       docopt
-name                py-${real_name}
+name                py-docopt
 version             0.6.2
 categories-append   devel
 platforms           darwin
@@ -17,20 +16,25 @@ description         Pythonic argument parser, that will make you smile
 long_description    ${description}
 
 homepage            http://docopt.org
-master_sites        pypi:d/${real_name}/
-distname            ${real_name}-${version}
+master_sites        pypi:d/${python.rootname}/
+distname            ${python.rootname}-${version}
 
 checksums           rmd160  c2e76c031e12096906b9c6b1f7dc62a9b30336f1 \
-                    sha256  49b3a825280bd66b3aa83585ef59c4a8c82f2c8a522dbe754a8bc8d08c85c491
+                    sha256  49b3a825280bd66b3aa83585ef59c4a8c82f2c8a522dbe754a8bc8d08c85c491 \
+                    size    25901
 
-python.versions     27 34 35 36
+python.versions     27 34 35 36 37
 
 if {${name} ne ${subport}} {
-    depends_build-append port:py${python.version}-setuptools
+    depends_build-append \
+                    port:py${python.version}-setuptools
 
-    livecheck.type      none
-} else {
-    livecheck.type      regex
-    livecheck.url       https://pypi.python.org/pypi/${real_name}
-    livecheck.regex     "${real_name}-(\\d+(?:\\.\\d+)*(-p\\d+)?)${extract.suffix}"
+    post-destroot {
+        set docdir ${prefix}/share/doc/${subport}
+        xinstall -d ${destroot}${docdir}
+        xinstall -m 0644 -W ${worksrcpath} README.rst LICENSE-MIT \
+            ${destroot}${docdir}
+    }
+
+    livecheck.type  none
 }