Restore automatic gc_collect() after an import #6406
Merged
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Fixes MemoryError MatrixPortal #6402.
The automatic garbage collection done after an
import
got lost in the MicroPython v1.18 merge, which rewrote the import code extensively. Restore it. This reduces heap fragmentation, which can make prevent allocating big buffers after significant imports.Improved error message for
RGBMatrix
being unable to allocate buffers. Previously, it just threw a blankMemoryError
.