CODEWITHSUNDEEP
pythonreplace
JS26
JS26

Reputation: 13

How can you do batch find and replace across multiple HTML files using Python?

I frequently have folders of 10-20 HTML files that need to be updated. Right now, I'm opening each one up in a text editor and using find and replace 5-10 times per file.

How can I search all 20 files for X, and if X is found, replace it with Y?

Upvotes: 0

Views: 488

Answers (2)

Daweo
Daweo

Reputation: 36700

If you are using python3.4 or newer you might harness pathlib built-in module for this task as follows

import pathlib
for p in pathlib.Path("<path_to_your_dir_here>").rglob("*.html"):
    text = p.read_text()
    text = text.replace("old", "new")
    p.write_text(text)

Upvotes: 0

vtasca
vtasca

Reputation: 1770

A simple solution would be to first create a list of all the locations of the files you're trying to change, using glob for example:

import os
import glob
base_directory = os.path.join('your', 'path', 'here')
all_html_files = glob.glob(base_directory + '*.html', recursive=True)

Now with that list, you can simply iterate through it and operate on each file individually:

for file in all_html_files:

    with open(file, 'r') as f:
        raw_file = f.read()
    
    # do your replacing here    
    processed_file = raw_file.replace('foo', 'bar')

    with open(file, 'w') as f:
        f.write(processed_file)

Upvotes: 1

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