Python-docx - How to change table font size?

Question

table = document.add_table(rows=1, cols=1)
hdr_cells = table.rows[0].cells
hdr_cells[0].text = 'Qty'

I have to change font size of text 'Qty' in table with one row and one column, how can I make it?

You may want to consider https://github.com/elapouya/python-docx-template if you plan to do a lot of styling. — click here, Mar 24 '17 at 19:42

score 12 · Accepted Answer · 2017-03-25T03:56:22.130

12

You need to get the paragraph in the cell. From the documentation of python-docx:

3.5.2 _Cell objects:
class docx.table._Cell (tc, parent)

paragraphs
List of paragraphs in the cell. A table cell is required to contain at least one block-level element and end with a paragraph. By default, a new cell contains a single paragraph. Read-only

Reference: python-docx Documentation - Read the Docs

The code:

To change font size of text 'Qty'

paragraph =hdr_cells[0].paragraphs[0]
run = paragraph.runs
font = run[0].font
font.size= Pt(30) # font size = 30

To change font size of the whole table:

for row in table.rows:
    for cell in row.cells:
        paragraphs = cell.paragraphs
        for paragraph in paragraphs:
            for run in paragraph.runs:
                font = run.font
                font.size= Pt(30)

Reference of how to access paragraphs in a table: Extracting data from tables

edited Mar 25 '17 at 03:56

answered Mar 25 '17 at 03:50

Thanks for solution! – huba183 Mar 25 '17 at 12:39
You saved my day! – user1931780 May 20 '17 at 06:02
2

This helped me too, thanks! I would have liked it if it was easier to set the table font size for the whole table, like I can set the font name and the font italic/bold type for the whole table at once. It seems illogical that you can't set the font size in that way. Is this really the only way? – Sjoerd C. de Vries May 21 '18 at 16:01

score 3 · Answer 2 · edited Jun 05 '19 at 06:07

Up there the solution really helped. I use it for a while. But I found a tiny problem:time. As your table grows bigger the time you cost to build the table getting longer. So I improve it. Cut two rounds. Here you are:

The code changes the whole table

for row in table.rows:
    for cell in row.cells:
        paragraphs = cell.paragraphs
        paragraph = paragraphs[0]
        run_obj = paragraph.runs
        run = run_obj[0]
        font = run.font
        font.size = Pt(30)

When you cut two rounds you save the time

score 3 · Answer 3 · answered Feb 24 '21 at 21:09

Building on user7609283 answer, here is a short version to set a cell to bold (the cell must contain text before applying format as it looks for the first paragraph):

    row_cells = table.add_row().cells
    row_cells[0].text = "Customer"
    row_cells[0].paragraphs[0].runs[0].font.bold = True

score 0 · Answer 4 · answered Jan 05 '23 at 20:41

This font change applies to all cells of a table and is streamlined. All cells must contain text before being formatted or an index out of range error is thrown:

for row in table.rows:
    for cell in row.cells:
        cp = cell.paragraphs[0].runs
        cp[0].font.size = Pt(14)

This next font change applies to a single cell as wanted, in this case the top left cell:

tc = table.cell(0, 0).paragraphs[0].runs
tc[0].font.size = Pt(14)

Python-docx - How to change table font size?

4 Answers4

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