Python script runs fine for a while then returns MemoryError (python 3.3) -

-

i have small script utilizes python imaging library module python3.3 (on win7, 8 gb of ram) take screenshot of small (~40x50) pixel area of screen once each second , compare image have detect particular pattern , execute 2 other modules created if found. script seems work flawlessly first 30 minutes or so, script crashes , following error:

traceback (most recent call last):
file "<string>", line 420, in run_nodebug
file "c:\users\nate simon\dropbox\captchalibrary\detectnrun.py", line 68, in <module>:
im2 = imagegrab.grab((left,upper,right,lower))
file "c:\python33\lib\site-packages\pil\imagegrab.py", line 47, in grab:
size, data = grabber()
memoryerror

i've adjusted time between screenshots , delay when program crashes.

here seems offending code:

im2 = imagegrab.grab((left,upper,right,lower)) # take screenshot @ given coordinates  x in range(im2.size[0]): # section changes image black/white better comparing might relevant.     y in range(im2.size[1]):         pixel = im2.getpixel((x,y))         if pixel[0] < 40 or pixel[1] < 40 or pixel[2] < 40:             color = (0, 0, 0)         else:             color = (255, 255, 255)         im2.putpixel((x,y), color)

there no lists, dictionaries, or databases being added in script, every time runs old screenshot overwritten in memory (it never saved disk).

also possibly relevant: time module using sleep() delays , time() keep track of system time. using win32api mouse/keyboard inputs , using tkinter read clipboard in following lines:

    c = tk()     c.withdraw()     result = c.clipboard_get()     c.destroy()

in section, clipboard cleared before new data added c.clipboard_clear()

i unable find adequate solution solve memory issue (or replicate under different conditions), increased interval between actions 1 second 15 seconds , have yet memory error again.


Comments

Post a Comment

Popular posts from this blog

c++ - llvm function pass ReplaceInstWithInst malloc -

-
#include "llvm/pass.h" #include "llvm/ir/module.h" #include "llvm/ir/function.h" #include "llvm/support/raw_ostream.h" #include "llvm/ir/legacypassmanager.h" #include "llvm/ir/instrtypes.h" #include "llvm/transforms/ipo/passmanagerbuilder.h" #include "llvm/ir/irbuilder.h" #include "llvm/transforms/utils/basicblockutils.h" using namespace llvm; namespace { struct replacepass : public functionpass { static char id; replacepass() : functionpass(id) {} virtual bool runonfunction(function &f) { allocainst* insttoreplace = ??? basicblock::iterator ii(insttoreplace); replaceinstwithinst(insttoreplace->getparent()->getinstlist(), ii, new allocainst(type::int32ty, 0, insttoreplace)); return true; } }; } char replacepass::id = 0; static void registerreplacepass(const passmanagerbuilder &, legacy::passmanagerbase &pm) { pm.add(new re
Read more

java.lang.NoClassDefFoundError When Creating New Android Project -

-
i've tried installing (and re-installing) android studio several times now, , each time, studio isn't able create new android project. when attempt initial android studio window (ie. basic 'create', 'open', 'import' etc options), i'm asked of questions in wizard, brief progress dialog, followed nothing @ all. if open incomplete project process creates choosing 'open' list, can try choosing create new android project menu. this has same issue, error message in output console time... java.lang.noclassdeffounderror: com/sun/xml/internal/bind/v2/model/annotation/annotationreader (wrong name: com/sun/xml/internal/bind/v0/model/qnnotation/annotationreader) note: when installed android studio, installed incompatible jdk (1.8, not 1.7). have had go default project settings change jdk uses 1.8. does know how can avoid this? there place should downloading jxb classes? missing in java paths? this appears have been caused cor
Read more

Decoding a Python 2 `tempfile` with python-future -

-
i'm attempting write python 2/3 compatible routine fetch csv file, decode latin_1 unicode , feed csv.dictreader in robust, scalable manner. for python 2/3 support, i'm using python-future including imporing open builtins , , importing unicode_literals consistent behaviour i'm hoping handle exceptionally large files spilling disk, using tempfile.spooledtemporaryfile i'm using io.textiowrapper handle decoding latin_1 encoding before feeding dictreader this works fine under python 3. the problem textiowrapper expects wrap stream conforms bufferediobase . unfortunately under python 2, although have imported python 3-style open , vanilla python 2 tempfile.spooledtemporaryfile still of course returns python 2 cstringio.stringo , instead of python 3 io.bytesio required textiowrapper . i can think of these possible approaches: wrap python 2 cstringio.stringo python 3-style io.bytesio . i'm not sure how approach - need write such wrapper or 1 ex
Read more