python_iteration_1.py

python_iteration_1.py

x = [1, 2, 3]

### Method 1: use "dir()"
print(dir(x))
# ['__add__', '__class__', '__contains__', '__delattr__', '__delitem__',
# '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__',
# '__getitem__', '__gt__', '__hash__', '__iadd__', '__imul__', '__init__',
# '__init_subclass__', '__iter__', '__le__', '__len__', '__lt__', '__mul__',
# '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__reversed__',
# '__rmul__', '__setattr__', '__setitem__', '__sizeof__', '__str__',
# '__subclasshook__', 'append', 'clear', 'copy', 'count', 'extend', 'index',
# 'insert', 'pop', 'remove', 'reverse', 'sort']

### Method 2: use "hasattr()"
print(hasattr(x, '__iter__'))
# True
print(hasattr(x, '__getitem__'))
# True
print(hasattr(x, '__next__'))
# False