'UnicodeDecodeError: 'utf-8' codec can't decode, when uploading from testscript

I am making test script to upload excel file,

def test_upload(self):
    c = Client()
    with open('_material/trick.xlsx') as fp:
        c.post('/cms/template/up', {'name': 'fred','content_file': fp})

There comes the error

UnicodeDecodeError: 'utf-8' codec can't decode byte 0x85 in position 16: invalid start byte

However in html upload form, there is no error occurs.

class UploadTemplateFileForm(BaseModelForm):
    content_file = forms.FileField(required=True)

Why this difference occurs?

python django

Solution 1:^[1]

.xlsx files are binary (they are actually pkzip archives). You must do open('_material/trick.xlsx','rb').

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	Tim Roberts

'UnicodeDecodeError: 'utf-8' codec can't decode, when uploading from testscript

Solution 1:[1]

Sources

Related Questions

Solution 1:^[1]