filetype.py
Small and dependency free Python package to infer file type and MIME type checking the magic numbers signature of a file or buffer.
This is a Python port from filetype Go package. Works in Python +3 .
一个小巧自由开放Python开发包，主要用来获得文件类型。包要求Python 3.+
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
安装
pip install filetype
API
详情请查看 annotated API reference .
实例
简单的文件类型识别
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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
基准测试
使用链接中的文件进行测试，你可以点击获得到它： real files .