如何在Django中获取文件扩展名？

如何在Django中获取文件扩展名？

您也可以使用表单中的clean（）方法来对其进行验证。因此，您可以拒绝不是mp3的文件。像这样：

class UploadSong(forms.Form):    [...]    def clean(self):        cleaned_data = super(UploadSong, self).clean()        file = cleaned_data.get('file')        if file: filename = file.name print filename if filename.endswith('.mp3'):     print 'File is a mp3' else:     print 'File is NOT a mp3'     raise forms.ValidationError("File is not a mp3. Please upload only mp3 files")        return file