[issue32780] ctypes: memoryview gives incorrect PEP3118 format strings for both packed and unpacked structs

[Terry J. Reedy]

Change by Terry J. Reedy <tjreedy at udel.edu>:


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nosy: +amaury.forgeotdarc, belopolsky, meador.inge
versions:  -Python 3.4, Python 3.5

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32780>
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