How can I ensure that the table content remains the same when replacing the table content?

[zhmingzhaung]

from docx import Document

def read_doc(document, old, new):
    for paragraph in document.paragraphs:
        for run in paragraph.runs:
            if old in run.text:
                run.text = run.text.replace(old, new)
    
    for table in document.tables:
        for row in table.rows:
            for cell in row.cells:
                for paragraph in cell.paragraphs:
                    for run in paragraph.runs:
                        if old in run.text:
                            run.text = run.text.replace(old, new)

document = Document(r'data/test.docx')
read_doc(document, 'TOTTRADE', '测试输出')
document.save(r'data/test_out.docx')

I can replace the content of the table while maintaining its format unchanged using the aforementioned code. However, when I use the following code for processing, it changes the table format. Why is that?

from decimal import Decimal
from docx import Document
from docx.shared import Pt
from docx.enum.text import WD_PARAGRAPH_ALIGNMENT, WD_LINE_SPACING
import re

def format_dict(d):
    for key, value in d.items():
        if isinstance(value, dict):
            d[key] = format_dict(value)
        elif isinstance(value, float):
            d[key] = float(Decimal(str(value)).quantize(Decimal('0.0')))
    return d

def run(df1, df2, df3, df4, df5, df6, df7, df8, df9, df10, df11, df12, df13, month, this_year=2025, last_year=2024):
    data_sources = [
        (get_report_data, [df1, month, this_year, last_year]),
        (get_report_data0, [df2]),
        (get_report_data1, [df3]),
        (get_report_data2, [df4, df5, df6]),
        (get_report_data3, [df7, df8, df9]),
        (get_report_data4, [df10, df11, df12, df13])
    ]
    rs = {}
    for func, args in data_sources:
        rs.update(func(*args)) 
    
    combined_data = format_dict(rs)
    
    for key, value in combined_data.items():
        if isinstance(value, pd.Series):
            if len(value) == 1:
                combined_data[key] = value.item()  
            else:
                combined_data[key] = value.sum() 

    return combined_data

def replace_text_in_docx(file_name, combined_data, year, month):
    doc = Document(file_name)
    sorted_data = sorted(combined_data.items(), key=lambda x: len(x[0]), reverse=True)

    for old_text, new_text in sorted_data:
        for p in doc.paragraphs:
            for run in p.runs:
                if old_text in run.text:
                    run.text = run.text.replace(str(old_text), str(new_text))

        for table in doc.tables:
            for row in table.rows:
                for cell in row.cells:
                    if old_text in cell.text:
                        for paragraph in cell.paragraphs:
                            for run in paragraph.runs:
                                run.text = run.text.replace(old_text, str(new_text))