tests/test-demandimport.py

45210:42202492a3b9

from mercurial import util

# Unlike the import statement, __import__() function should not raise
# ImportError even if fromlist has an unknown item
# (see Python/import.c:import_module_level() and ensure_fromlist())
assert 'zipfile' not in sys.modules
zipfileimp = __import__('zipfile', globals(), locals(), ['unknownattr'])
assert f(zipfileimp) == "<module 'zipfile' from '?'>", f(zipfileimp)
assert not util.safehasattr(zipfileimp, 'unknownattr')

45211:fc8299319ffe

from mercurial import util

# Unlike the import statement, __import__() function should not raise
# ImportError even if fromlist has an unknown item
# (see Python/import.c:import_module_level() and ensure_fromlist())
assert 'ftplib' not in sys.modules
zipfileimp = __import__('ftplib', globals(), locals(), ['unknownattr'])
assert f(zipfileimp) == "<module 'ftplib' from '?'>", f(zipfileimp)
assert not util.safehasattr(zipfileimp, 'unknownattr')