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+# http://python.org
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufSetOption mimetype=text/x-python %{
+    set buffer filetype python
+}
+
+hook global BufCreate .*[.](py) %{
+    set buffer filetype python
+}
+
+# Highlighters
+# ‾‾‾‾‾‾‾‾‾‾‾‾
+
+addhl -group / multi_region -default code python \
+    double_string '"""' '"""'                 '' \
+    single_string "'''" "'''"                 '' \
+    double_string '"' (?<!\\)(\\\\)*"         '' \
+    single_string "'" "'"                     '' \
+    comment       '#' '$'                     ''
+
+addhl -group /python/double_string fill string
+addhl -group /python/single_string fill string
+addhl -group /python/comment       fill comment
+
+addhl -group /python/code regex \<(True|False|None)\> 0:value
+addhl -group /python/code regex \<(import|from)\> 0:macro
+
+# Keyword list is collected using `keyword.kwlist` from `keyword`
+addhl -group /python/code regex \<(and|as|assert|break|class|continue|def|del|elif|else|except|exec|finally|for|global|if|in|is|lambda|not|or|pass|print|raise|return|try|while|with|yield)\> 0:keyword
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+def -hidden _python_filter_around_selections %{
+    eval -draft -itersel %{
+        exec <a-x>
+        # remove trailing white spaces
+        try %{ exec -draft s \h+$ <ret> d }
+    }
+}
+
+def -hidden _python_indent_on_new_line %{
+    eval -draft -itersel %{
+        # preserve previous line indent
+        try %{ exec -draft <space> K <a-&> }
+        # filter previous line
+        try %{ exec -draft k : _python_filter_around_selections <ret> }
+        # copy '#' comment prefix and following white spaces
+        try %{ exec -draft k x s ^\h*\K#\h* <ret> y j p }
+        # indent after :
+        try %{ exec -draft <space> k x <a-k> :$ <ret> j <a-gt> }
+    }
+}
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook global WinSetOption filetype=python %{
+    addhl ref python
+
+    hook window InsertEnd  .* -group python-hooks  _python_filter_around_selections
+    hook window InsertChar \n -group python-indent _python_indent_on_new_line
+}
+
+hook global WinSetOption filetype=(?!python).* %{
+    rmhl python
+    rmhooks window python-indent
+    rmhooks window python-hooks
+}