How to fix 'TypeError: __init__() missing 1 required positional argument: 'part'' error in python

Question

The console keeps telling me this, saying there is a parameter missing.

"D:\Program Files (x86)\Python\python.exe" D:/workspace/Glossary_Builder_Python/main.py
Please input the file path
C:\Users\Administrator\Desktop\Allergies.docx
Traceback (most recent call last):
  File "D:/workspace/Glossary_Builder_Python/main.py", line 102, in <module>
    main(sys.argv)
  File "D:/workspace/Glossary_Builder_Python/main.py", line 98, in main
    extractWdFrmDocx(filepath)
  File "D:/workspace/Glossary_Builder_Python/main.py", line 18, in extractWdFrmDocx
    document = Document(file)
TypeError: __init__() missing 1 required positional argument: 'part'

I am trying to extract some highlighted(in yellow) text from a docx file, using python-docx and python 3.7. When I go into Document func, the __init__ looks like this:

def __init__(self, element, part):
    super(Document, self).__init__(element)
    self._part = part
    self.__body = None

so here, what is 'part' for?

Below is the extracting function and main function:

def extractWdFrmDocx(filepath):
    # self.filepath = filepath
    document = Document(filepath)
    for para in document.paragraphs:
        for run in para.runs:
            if run.font.highlight_color == WD_COLOR_INDEX.YELLOW:
                keyText.append(run.text)
    print(keyText)


def main(argv):
    print("Please input the file path")
    filepath = input()
    extractWdFrmDocx(filepath)


if __name__ == "__main__":
    main(sys.argv)

Answer 1

Probably you imported Document from docx.document . You are not supposed to construct such a Document object directly. Instead a function for creating Document objects is provided as docx.Document which expects one argument, the way you are using it right now.

Therefore your code should be:

import docx

[...]

document = docx.Document(filepath)

From documentation of python-docx:

Document objects

class docx.document.Document

[...]

Not intended to be constructed directly. Use docx.Document() to open or create a document.