Re: PIL implementation

[Peter Hansen]

arkestra wrote:
> The error message is --> "Syntax error" and it highlights the last
> "else" statement.

You've got incorrect indentation, at least judging by what I see in my 
newsreader (Thunderbird), which clearly shows the else indented more 
than the corresponding if.

Next time, please cut and paste the *actual* error message instead of 
retyping and paraphrasing.  That will get you a faster answer and save 
us lots of annoying guessing.

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Re: PIL implementation

[arkestra]

The error message is --> "Syntax error" and it highlights the last
"else" statement.

thanks for the reply.

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Re: PIL implementation

[arkestra]

The error message is --> "Syntax error" and it highlights the last
"else" statement.

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Re: PIL implementation

[Claudio Grondi]

circusdei wrote:
> I wrote this snippet with the intention of -- capturing a section of
> the screen whenever it changes.  It could be implemented to log any
> sort of messaging system ( by saving consecutive images eg.
> 1.png...etc).
> 
> #code 
> 
> import Image
> import ImageGrab
> lastchatbound = (21, 504) + (189, 516)
> img1 = ImageGrab.grab(lastchatbound)
> data1 = list(img1.getdata())
> img2 = ImageGrab.grab(lastchatbound)
> data2 = list(img2.getdata())
> # print `data1`
pictnumber = 0
> if data1 != data2:
> img1.save(`picnumber` + '.png')
> picnumber = picnumber + 1
> else:
> print "same"
> 
> #code --
> 
> it doesn't work yet and i'm not quite sure how the loops work yet ( i
> just sarted python last week). any help anyone could give me would be
> appreciated.
> 
> if someone could rewrite it so it works, i could use that as an example
> for the future, thanks.
> 
> - mb
> 
At the first glance the code looks almost ok. It is a good habit always 
to attach documentation of the error messages if any.
What I can directly see is, that you need at least to initialize the 
picnumber (see above).
Look in the Python documentation for the chapter with loops, read about 
the time module you will need to let the loop pause before taking the 
next screenshot and consider also, that maybe later it would be a good 
idea to have a way to stop the loop executing.
Come back with the next revision of your code for further help if you 
get into trouble or wait until someone else provides you with 
appropriate working code.

Claudio
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PIL implementation

[circusdei]

I wrote this snippet with the intention of -- capturing a section of
the screen whenever it changes.  It could be implemented to log any
sort of messaging system ( by saving consecutive images eg.
1.png...etc).

#code 

import Image
import ImageGrab
lastchatbound = (21, 504) + (189, 516)
img1 = ImageGrab.grab(lastchatbound)
data1 = list(img1.getdata())
img2 = ImageGrab.grab(lastchatbound)
data2 = list(img2.getdata())
# print `data1`
if data1 != data2:
img1.save(`picnumber` + '.png')
picnumber = picnumber + 1
else:
print "same"

#code --

it doesn't work yet and i'm not quite sure how the loops work yet ( i
just sarted python last week). any help anyone could give me would be
appreciated.

if someone could rewrite it so it works, i could use that as an example
for the future, thanks.

- mb

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