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"""
categories: Core,import
description: Failed to load modules are still registered as loaded
cause: To make module handling more efficient, it's not wrapped with exception handling.
workaround: Test modules before production use; during development, use ``del sys.modules["name"]``, or just soft or hard reset the board.
"""
import sys
try:
from modules import foo
except NameError as e:
print(e)
try:
from modules import foo
print('Should not get here')
except NameError as e:
print(e)
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