gridfs - read video file from mongodb with pymongo -


i have large video file stored in mongodb gridfs. read , write on disk. can find file in database with: 

 file = grid_fs.find_one({"filename":'file_in_database.cin'})

i grid out object gridfs.grid_file.gridout @ 0xa7b7be0

i try write file on disk with:

 open('file_from_database.cin', 'w') f:       f.write(file.read())

i file written size of 1 download database different original size of file:

05/15/2015  09:09        65,585,808 file_from_database.cin 08/01/2007  01:08 pm        65,585,800 original_file.cin

i checked file in database , md5 field same original problem must during download or writing.

i'm using win7 64 , anaconda64 dirstribution python 2.7

any appreciated.

update

i tried same code jpeg image , same problem, image stored in database when , write disk size different , cannot read it.

03/20/2015  02:36 pm         5,422,339 original_image.jpg 05/15/2015  02:44 pm         5,438,750 image_from_database.jpg

am doing simple mistake reading gridout , writing disk?

interesttingly if open image with:

pil.image.open(file)

i can image fine. idea?


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