create: add --python option

Library/Homebrew/dev-cmd/create.rb

@@ -27,6 +27,8 @@ module Homebrew
              description: "Create a basic template for a Go build."
       switch "--meson",
              description: "Create a basic template for a Meson-style build."
+      switch "--python",
+             description: "Create a basic template for a Python build."
       switch "--no-fetch",
              description: "Homebrew will not download <URL> to the cache and will thus not add its SHA-256 "\
                           "to the formula for you, nor will it check the GitHub API for GitHub projects "\
@@ -42,7 +44,7 @@ module Homebrew
       switch :force
       switch :verbose
       switch :debug
-      conflicts "--autotools", "--cmake", "--go", "--meson"
+      conflicts "--autotools", "--cmake", "--go", "--meson", "--python"
     end
   end
 
@@ -77,6 +79,8 @@ module Homebrew
       :meson
     elsif args.go?
       :go
+    elsif args.python?
+      :python
     end
 
     if fc.name.nil? || fc.name.strip.empty?

Library/Homebrew/formula_creator.rb

@@ -85,6 +85,10 @@ module Homebrew
         #                https://rubydoc.brew.sh/Formula
         # PLEASE REMOVE ALL GENERATED COMMENTS BEFORE SUBMITTING YOUR PULL REQUEST!
         class #{Formulary.class_s(name)} < Formula
+        <% if  mode == :python %>
+          include Language::Python::Virtualenv
+
+        <% end  %>
           desc "#{desc}"
           homepage "#{homepage}"
         <% if  head? %>
@@ -104,6 +108,8 @@ module Homebrew
         <% elsif  mode == :meson %>
           depends_on "meson" => :build
           depends_on "ninja" => :build
+        <% elsif  mode == :python %>
+          depends_on "python"
         <% elsif  mode.nil? %>
           # depends_on "cmake" => :build
         <% end  %>
@@ -126,6 +132,8 @@ module Homebrew
               system "ninja", "-v"
               system "ninja", "install", "-v"
             end
+        <% elsif  mode == :python %>
+            virtualenv_install_with_resources
         <% else  %>
             # Remove unrecognized options if warned by configure
             system "./configure", "--disable-debug",
@@ -134,7 +142,7 @@ module Homebrew
                                   "--prefix=\#{prefix}"
             # system "cmake", ".", *std_cmake_args
         <% end  %>
-        <% if  mode != :meson and mode != :go %>
+        <% if  mode != :meson and mode != :go and mode != :python %>
             system "make", "install" # if this fails, try separate make/make install steps
         <% end  %>
           end

docs/Manpage.md

@@ -805,6 +805,8 @@ a simple example. For the complete API, see:
   Create a basic template for a Go build.
 * `--meson`:
   Create a basic template for a Meson-style build.
+* `--python`:
+  Create a basic template for a Python build.
 * `--no-fetch`:
   Homebrew will not download *`URL`* to the cache and will thus not add its SHA-256 to the formula for you, nor will it check the GitHub API for GitHub projects (to fill out its description and homepage).
 * `--HEAD`:

manpages/brew.1

@@ -1028,6 +1028,10 @@ Create a basic template for a Go build\.
 Create a basic template for a Meson\-style build\.
 .
 .TP
+\fB\-\-python\fR
+Create a basic template for a Python build\.
+.
+.TP
 \fB\-\-no\-fetch\fR
 Homebrew will not download \fIURL\fR to the cache and will thus not add its SHA\-256 to the formula for you, nor will it check the GitHub API for GitHub projects (to fill out its description and homepage)\.
 .