Hi,
New conf file from b4n @ irc.geany.org on freenode.
Comments are recognized and folding works fine:

[styling=Python]

[keywords]
primary=ALIGN ANGLE ANTIALIAS BUFFER CLASS CLASSITEM COLOR CONFIG CONNECTION CONNECTIONTYPE DATA DEBUG DRIVER DUMP END EXPRESSION EXTENSION EXTENT FEATURE FONT FONTSET FORCE FORMATOPTION GEOMTRANSFORM GROUP IMAGECOLOR IMAGEMODE IMAGETYPE IMAGEPATH IMAGEURL INCLUDE LABEL LABELCACHE LABELITEM LAYER LOG MAP MASK MAXLENGTH MAXSCALEDENOM MAXSIZE MAXWIDTH METADATA MIMETYPE MINDISTANCE MINFEATURESIZE MINLENGTH MINSCALEDENOM MINSIZE MINWIDTH NAME OFFSET OPACITY OUTLINECOLOR OUTLINEWIDTH OUTPUTFORMAT PARTIALS PATTERN POINTS POSITION POSTLABELCACHE PROJECTION PROCESSING QUERYMAP RESOLUTION SHAPEPATH SIZE STATUS STYLE SYMBOL SYMBOLSCALEDENOM SYMBOLSET TEMPLATE TEMPLATEPATTERN TEXT TOLERANCE TRANSFORM TRANSPARENT TYPE UNITS WEB WIDTH WRAP
identifiers=

[settings]
lexer_filetype=Python

default extension used when saving files

extension=map

comment_single=#
comment_use_indent=true