Diagnostics

Build warnings

Message	Meaning and fix
dynamic import at FILE:LINE: the module name is computed at runtime; list possible modules in the keep option	import_module(x) with a computed name. Add the modules to keep
dynamic import at FILE:LINE: bundling every module under 'PKG'	import_module("PKG." + x): every submodule of PKG is bundled
FILE:LINE uses __file__; package data files ship with the tree and lambda targets, ...	Files next to modules are copied into tree and lambda outputs. single and pyz bundles can't read them
keep option 'SPEC': module 'M' was not found in the roots	Typo or module outside the roots
keep option 'SPEC': nothing in the bundle defines 'NAME'	The module exists but defines no such name
export 'NAME': nothing in the bundle defines 'NAME'	The handler name is wrong

report also lists info: kept MOD whole: REASON for modules kept whole because they use globals(), eval or similar.

Runtime notes

Added to exceptions raised in bundles. The exception type is unchanged.

Exception	Note
AttributeError on a module	removed by shakeout (unreferenced; defined at FILE:LINE). Keep it with: keep = ['MOD:NAME']
ImportError: cannot import name	'NAME' was removed from FILE:LINE ... Keep it with: keep = ['MOD:NAME']
NameError	'NAME' was removed by shakeout from FILE:LINE (unreferenced). Keep it with: ...
ModuleNotFoundError	The module was dropped, or a dynamic import the build warned about. Names the keep entry