How to read and write multiline (java spec) .properties in python with jproperties? [duplicate]

You have to use backslash (\) at the end of the line. This question was already asked here.

Your problem is probably because HTML doesn't care about new line. If you want to display a new line you have to use the <br /> tag.

You can include HTML code in your properties file and the use the escape="false" to avoid escaping the HTML tags when generating the HTML.

TXT_ABOUT = first line<br />\
    second line<br />\
    third line.

JSF code:

<h:outputText value="#{txt.TXT_ABOUT}" escape="false" />