Philip Smith wrote:
I don't seem to be able to define multiple versions of __init__ in my matrix
class (ie to initialise either from a list of values or from 2 dimensions
(rows/columns)).
You could either use an if statement with *args:
class Matrix(object):
def __init__(self, *args):
if len(args) == 1:
# Initialize from list of values
elif len(args) == 2:
# Initialize from rows/columns
else:
raise TypeError("Constructor accepts 1 or 2 arguments.")
Or with two different functions:
class Matrix(object):
def __init__(self, values):
# Initialize from a list of values
@classmethod
def from_pair(self, rows, columns):
return Matrix([rows, columns]) # Or with the right argument
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