diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/bitbake-user-manual/bitbake-user-manual-metadata.xml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml b/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml index cfa85b379..359df8f75 100644 --- a/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml +++ b/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml @@ -840,6 +840,18 @@ is a global variable and is always automatically available. </para> + + <note> + Variable expressions (e.g. <filename>${X}</filename>) are no + longer expanded within Python functions. + This behavior is intentional in order to allow you to freely + set variable values to expandable expressions without having + them expanded prematurely. + If you do wish to expand a variable within a Python function, + use <filename>d.getVar("X", True)</filename>. + Or, for more complicated expressions, use + <filename>d.expand()</filename>. + </note> </section> <section id='python-functions'> |