understanding output of bytes/raw data

[rootVIII]

I can see that the output of this has some interesting info... such as Created With Gimp How can I extract useful information out of s[6]? Or is that just the image data itself? What do the 0th-5th elements represent?

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import struct from requests import get     struct_fmt = '=5if255s' struct_len = struct.calcsize(struct_fmt) struct_unpack = struct.Struct(struct_fmt).unpack_from url_img = 'https://www.restwords.com/static/ICON.png' # print(struct_unpack(get(url_img).content)) s = struct_unpack(get(url_img).content) print(s)

edit: here's what the output looks like:

1

(1196314761, 169478669, 218103808, 1380206665, 1912602624, 2.535301200456459e+30, b'\x08\x02\x00\x00\x00\x00\xbf\x12*\x00\x00\x00\tpHYs\x00\x00\x0b\x13\x00\x00\x0b\x13\x01\x00\x9a\x9c\x18\x00\x00\x00\x07tIME\x07\xe1\t\x01\x0b\x12 \xeb\xaf\xd8i\x00\x00\x00\x19tEXtComment\x00Created with GIMPW\x81\x0e\x17\x00\x00\x00\x06bKGD\x00\xff\x00\xff\x00\xff\xa0\xbd\xa7\x93\x00\x00\x1d\x8cIDATx\xda\xed]\tX\x8di\xfb\x7f\xf7};\xed\xda7[\n\x91\xa5E\xb6\xc1XC\x12\x91"\xb2\x84"\x8d\xa5\x88,1v\t\x83\xa1Bv#\x94\xad\x184*r\xea\x98\xe5\xfb\xbe\x99o\x86\xebb\x98\x19\xe3\xfbf|\x98\xc1\x98\xff\xffy:iB\xa7\xe5tZ\x18\xe7z.\xd7\xd1\xe9<\xbd\xef\xef\xb9\x9f\xfb\xf9\xdd\xeb\x8b\xfc_\x1d\xbc\xee\xdd\xbbW\\\\\x9c}\xf6lNv\xf6W_}\xf5\xc3\x0f?<y\xf2D\xef\xd9\x9e={\x06\xbe\xfe\xf4\xe9S\xf0\xe6\xf9\xf3\xe7\x7f\xfe\xf9')

[fishhook]

maybe this information would help you

[Gribouillis]

For such a problem, I would look into pypi to find packages related to png or to metadata. For example you have this package ipng. In the source code there are interesting considerations about the contents of the png format and you see that zlib.decompress() is involved in retrieving the metadata.

[rootVIII]

both great answers thank you