python2 code get error when using python3.5

2018-06-09 15:37:28

This question already has an answer here:

Check if a given key already exists in a dictionary 18 answers

distutilscross issue when install PyAudio for cross-platform 1 answer

how to solve AttributeError: '_Environ' object has no attribute 'has_key' 1 answer

has_key is removed in python3, but you shouldn't be using it in 2 either. Use the in operator:

if self.cross_compile and 'PYTHONXCPREFIX' in os.environ:

has_key() was removed in Python 3.x. Use in or get

'PYTHONXCPREFIX' in os.environ

Using get

os.environ.get('PYTHONXCPREFIX') . if does not exists it returns None.

It can returns False as well, passing it as default value.

os.environ.get('PYTHONXCPREFIX', False)

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