python用来获得图片exif信息的库代码，,exif-py是一个纯p

exif-py是一个纯python实现的获取图片元数据的python库，官方下载地址：http://exif-py.svn.sourceforge.net/viewvc/exif-py/source/EXIF.py?revision=19&view=markup下面的代码演示的是调用方法。```python

library test/debug function (dump given files)

if name == 'main': import sys import getopt

# parse command line options/argumentstry:    opts, args = getopt.getopt(sys.argv[1:], "hqsdt:v", ["help", "quick", "strict", "debug", "stop-tag="])except getopt.GetoptError:    usage(2)if args == []:    usage(2)detailed = Truestop_tag = 'UNDEF'debug = Falsestrict = Falsefor o, a in opts:    if o in ("-h", "--help"):        usage(0)    if o in ("-q", "--quick"):        detailed = False    if o in ("-t", "--stop-tag"):        stop_tag = a    if o in ("-s", "--strict"):        strict = True    if o in ("-d", "--debug"):        debug = True# output info for each filefor filename in args:    try:        file=open(filename, 'rb')    except:        print "'%s' is unreadable\n"%filename        continue    print filename + ':'    # get the tags    data = process_file(file, stop_tag=stop_tag, details=detailed, strict=strict, debug=debug)    if not data:        print 'No EXIF information found'        continue    x=data.keys()    x.sort()    for i in x:        if i in ('JPEGThumbnail', 'TIFFThumbnail'):            continue        try:            print '   %s (%s): %s' % \                  (i, FIELD_TYPES[data[i].field_type][2], data[i].printable)        except:            print 'error', i, '"', data[i], '"'    if 'JPEGThumbnail' in data:        print 'File has JPEG thumbnail'    print

```