python-docx: preserve formatting when printing lines

[Tmagpy]

I am needing to filter out lines containing formatting like italic, bold,.... I used the following code to filter and print out those lines:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

from docx import Document     def check_font(par):     flag = {         'bold': 0,         'italic':0,         'underline':0,     }     if par.bold:         flag['bold'] = 1     if par.italic:         flag['italic'] = 1     if par.underline:         flag['underline'] = 1     return flag def repl(filename):     doc = Document(filename)     for p in doc.paragraphs:         for par in p.runs:             flag = check_font(par)             if flag['bold'] == 1:                 p.bold = True             if flag['italic'] == 1:                 p.italic = True             if flag['underline'] == 1:                 p.underline = True         p.text = u" ".join(par.text)     doc.save('test.docx') repl('tstt.docx')

my input_file tstt.docx:

This is example text:
- This is bold text
- I need change it to bold
- How way to do that
- This is italics text

but when i save them to test.docx file they lose their original format:

bold text
change it to bold
to do that
italics text

what should i do if i want to print those lines and keep the formatting?

[snippsat]

Line 28 will make p.text a str object because you use .join().
Got to keep it a docx object or will lose all formatting.

[deanhystad]

The program in the original post does not produce the posted results when I run it.

Using a dictionary is an odd way to pass return values. Why not do this?

1 2 3 4 5 6 7 8 9 10 11 12 13 14

from docx import Document   def check_font(par):     return par.bold, par.italic, par.underline   def repl(filename):     doc = Document(filename)     for p in doc.paragraphs:         for par in p.runs:             p.bold, p.italic, p.underline = check_font(par)         p.text = u" ".join(par.text)     doc.save('test.docx')   repl('tstt.docx')

[Tmagpy]

thanks for the answer, i use 'dict' because i can consider many cases like text having all 3 formats above. The above code also returns the same result as my original

[Tmagpy]

Line 28 will make p.text a str object because you use .join().
Got to keep it a docx object or will lose all formatting.

I don't know how to handle it, although I can use add_run but it will insert but not print what I need.