Python库 使用filetype精确判断文件类型
filetype作用
一个小巧自由开放Python开发包,主要用来获得文件类型。
filetype支持版本:
python2/python3
filetype安装:
pip install filetype
filetype功能特色
•简单友好的API
•支持宽范围文件类型
•提供文件扩展名和MIME类型判断
•文件的MIME类型扩展新增
•通过文件(图像、视频、音频…)简单分析
•可插拔:添加新的自定义类型的匹配
•快,即使处理大文件
•只需要前261个字节表示的最大文件头,这样你就可以通过一个单字节
•依赖自由(只是Python代码,没有C的扩展,没有libmagic绑定)
•跨平台文件识别
代码示例:
import filetype def main(): kind = filetype.guess('tests/fixtures/sample.jpg') if kind is None: print('Cannot guess file type!') return print('File extension: %s' % kind.extension) print('File MIME type: %s' % kind.mime) if __name__ == '__main__': main()
支持类型
图片
• jpg – image/jpeg
• png – image/png
• gif – image/gif
• webp – image/webp
• cr2 – image/x-canon-cr2
• tif – image/tiff
• bmp – image/bmp
• jxr – image/vnd.ms-photo
• psd – image/vnd.adobe.photoshop
• ico – image/x-icon
视频
• mp4 – video/mp4
• m4v – video/x-m4v
• mkv – video/x-matroska
• webm – video/webm
• mov – video/quicktime
• avi – video/x-msvideo
• wmv – video/x-ms-wmv
• mpg – video/mpeg
• flv – video/x-flv
音频
• mid – audio/midi
• mp3 – audio/mpeg
• m4a – audio/m4a
• ogg – audio/ogg
• flac – audio/x-flac
• wav – audio/x-wav
• amr – audio/amr
资料库
• epub – application/epub+zip
• zip – application/zip
• tar – application/x-tar
• rar – application/x-rar-compressed
• gz – application/gzip
• bz2 – application/x-bzip2
• 7z – application/x-7z-compressed
• xz – application/x-xz
• pdf – application/pdf
• exe – application/x-msdownload
• swf – application/x-shockwave-flash
• rtf – application/rtf
• eot – application/octet-stream
• ps – application/postscript
• sqlite – application/x-sqlite3
• nes – application/x-nintendo-nes-rom
• crx – application/x-google-chrome-extension
• cab – application/vnd.ms-cab-compressed
• deb – application/x-deb
• ar – application/x-unix-archive
• Z – application/x-compress
• lz – application/x-lzip
字体
• woff – application/font-woff
• woff2 – application/font-woff
• ttf – application/font-sfnt
• otf – application/font-sfnt