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py3k: Type coercion is gone

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Types aren't automatically converted for operations for you.
This commit is contained in:
Brian Crowell 2012-10-19 07:54:55 -05:00 committed by Shuge Lee
parent 12d8977542
commit 952685faa1
1 changed files with 9 additions and 4 deletions
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13
PIL/Image.py
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@ -396,11 +396,16 @@ def _getencoder(mode, encoder_name, args, extra=()):
# --------------------------------------------------------------------
# Simple expression analyzer
def coerce_e(value):
return value if isinstance(value, _E) else _E(value)
class _E:
def __init__(self, data): self.data = data
def __coerce__(self, other): return self, _E(other)
def __add__(self, other): return _E((self.data, "__add__", other.data))
def __mul__(self, other): return _E((self.data, "__mul__", other.data))
def __init__(self, data):
self.data = data
def __add__(self, other):
return _E((self.data, "__add__", coerce_e(other).data))
def __mul__(self, other):
return _E((self.data, "__mul__", coerce_e(other).data))
def _getscaleoffset(expr):
stub = ["stub"]