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PIL problems

Hello. I have been trying to use PIL's .putdata() method and I have
been having some problems. The error I get is:

Traceback (most recent call last):
File "realautomata.p y", line 72, in ?
nim.putdata(y)
File "C:\Python24\Li b\site-packages\PIL\Im age.py", line 1120, in
putdata
self.im.putdata (data, scale, offset)
TypeError: too many data entries

The code is:

import Image

# Contract:
# To simulate simple cellular automata.

class calculations:
def __init__(self):
self.against = self.array_make r_2()[110]
print self.against
self.check = self.array_make r_1()
self.array = self.array_make r_3(31)
self.calculator ()

def binary(self, n, size): ## This is the Int -> str(BINARY)
converter
assert n >= 0
bits = []
while n:
bits.append('01 '[n&1])
n >>= 1
bits.reverse()
result = ''.join(bits) or '0'
for iteration in range(len(resul t),size):
result = "0" + result
return result

def array_maker_1(s elf): # This makes the array that represents the
8 different permutations of 3 cells. Itself, its left and its right.
return [self.binary(n, 3) for n in range(8)]

def array_maker_2(s elf): # This makes the array that represents
every single different rule. If for instance the second element in one
# of these rules is 1, then the corresponding permutation that may
be found in the result array (array_maker_3) , will be 1 (black).
return [self.binary(n, 8) for n in range(256)]

def array_maker_3(s elf, y): # This is the array for all the
results. The automaton starts from the middle of the first row
x = [["0" for x in range(2*y+1)] for n in range(y)]
x[0][(2*y-1)/2] = "1"
return x

def calculator(self ): # This cycles over all of the cells, and
scans one row at a time, and changes the next row according to the
current cell.
self.buff_resul t = ["0","0","0"] # This is the current permutation
buffer to be checked against the corresponding arrays.
for i in range(len(self. array)-1):
for j in range(1, len(self.array[0])-1):
self.step1(j,i)
self.step2(j,i)
self.step3(j,i)
y = self.check.inde x(''.join(self. buff_result))
self.array[i+1][j] = self.against[y]

# The steps update the result buffer.
def step1(self, step, y):
self.buff_resul t[0] = self.array[y][step-1]

def step2(self, step, y):
self.buff_resul t[1] = self.array[y][step]

def step3(self, step, y):
self.buff_resul t[2] = self.array[y][step+1]

objo = calculations()
x = objo.array
y = []
for num,zo in enumerate(x):
for com,wo in enumerate(zo):
x[num][com] = int(wo)

nim = Image.new("1", (62,31))

for n in x: #converting the array of arrays into a single array so
putdata can take it.
for p in n:
y.append(p)
print y
nim.putdata(y)

nim.resize((620 ,310)).save("ou tput.png")

can someone tell me why I get the error?

Jun 23 '06 #1
1 6879
defcon8 wrote:
The error I get is:

Traceback (most recent call last):
File "realautomata.p y", line 72, in ?
nim.putdata(y)
File "C:\Python24\Li b\site-packages\PIL\Im age.py", line 1120, in
putdata
self.im.putdata (data, scale, offset)
TypeError: too many data entries


the error means that you're passing in more items than there are pixels
in the target image. adding

print nim.size, len(y)

before the putdata line should help you figure out what's wrong.

</F>

Jun 24 '06 #2

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