controlla se un oggetto supporta il protocollo del protocollo python

Question

Sto cercando l'equivalente Python del PyObject_CheckBuffer dell'API Python.

I.e. Vorrei verificare se un oggetto supporta il protocollo buffer, ma da Python.

Answer 1

penso che tu stai solo suppone di utilizzare lo standard try-it-and-see-se-da-opere tecnica:

# New-style buffer API, for Python 2.7 and 3.x. 
# PyObject_CheckBuffer uses the new-style API. 
# 2.6 also has the new-style API, but no memoryview, 
# so you can't use it or check compatibility from Python code. 
try: 
    memoryview(thing) 
except TypeError: 
    # Doesn't support it! 

# Old-style API. Doesn't exist in 3.x. 
# Not quite equivalent to PyObject_CheckBuffer. 
try: 
    buffer(thing) 
except TypeError: 
    # Doesn't support it!