python-docx example

docx-sample.py

def merge(r):

    if '{{LESSOR}}' in r.text:
        r.text = r.text.replace('{{LESSOR}}', 'my name')
    if '{{LESSORADDRESS}}' in r.text:
        r.text = r.text.replace('{{LESSORADDRESS}}', 'my address')


from docx import Document

document = Document('input.docx')

for t in document.tables:
    for r in t.rows:
        for c in r.cells:
            for p in c.paragraphs:
                for r in p.runs:
                    merge(r)

document.save('output.docx')