I have a small routine which tries to verify if an uploaded file is a
valid image. It works like this:
image_data=StringIO(data)
try:
pil_data=PIL.Image.open(image_data)
except IOError: # PIL abuses IOError to report parsing errors
raise Invalid(self.message("bad_image", state),
value, state)
pil_data.load()
(width,height)=pil_data.size
For some images I get an OverflowError on the load() call:
ModulePIL.ImageFile:*155* in|load|
<imap://wichert%40simplon%2e...@mx1.simplon.biz:993/fetch%3EUID%3E.2style4you.Site%20Errors%3E331#>self.load_prepare()
ModulePIL.ImageFile:*223* in|load_prepare|
<imap://wichert%40simplon%2e...@mx1.simplon.biz:993/fetch%3EUID%3E.2style4you.Site%20Errors%3E331#>self.im
= Image.core.new(self.mode, self.size)*
OverflowError: long int too large to convert to int
*
I can not find any information as to what the problem might be. It seems
to only occur for bmp files; jpeg and png appear to work correctly.
This is using PIL 1.1.6 and Python 2.5 on a Linux system.
Wichert.
<<
<imap://wichert%40simplon%2e...@mx1.simplon.biz:993/fetch%3EUID%3E.2style4you.Site%20Errors%3E331#>
self.map = None
self.load_prepare()
# look for read/seek overrides
<<
<imap://wichert%40simplon%2e...@mx1.simplon.biz:993/fetch%3EUID%3E.2style4you.Site%20Errors%3E331#>
if not self.im or\
self.im.mode != self.mode or self.im.size != self.size:
self.im = Image.core.new(self.mode, self.size)
# create palette (optional)
if self.mode == "P":
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