Help: pyinstaller packaging error-CodePudding

Running the code itself, with pyinstaller error after packaging, running in the CMD the following error message

 
Traceback (the most recent call last) : 
File. The main py, 56, line in & lt; module> 
File. The main py, 44, the line in the main 
File. The main py, line 20, in reading, reading # I write function is used to read XLSX File 
File "xlrd3 \ set py", line 112, in open_workbook 
File "xlrd3 \ XLSX py", line 877, in open_workbook_2007_xml 
File "xlrd3 \ XLSX. Py, 43, line in ensure_elementtree_imported 
Exception: Failed to import an ElementTree implementation

Code into the OS, xlrd3 XLWT three modules

 
# packaging code 
Pyinstaller -- clean main. Py -f

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