configupdater_quickstart_modify_add_section_preserve_formatting.py

1from configupdater import ConfigUpdater
2
3# Let's create a dummy configuration file
4content = """
5[section]
6# This is a comment
7key = value
8"""
9with open('setup.cfg', 'w') as f:
10    f.write(content)
11
12# Initialize the ConfigUpdater object
13updater = ConfigUpdater()
14
15# Read the configuration file
16updater.read("setup.cfg")
17
18# Modify an existing value
19updater["section"]["key"].value = "new_value"
20
21# Add a new section with a comment and a key-value pair
22updater["section"].add_after.section("new_section")
23updater["new_section"].add_before.comment("This is a new section")
24updater["new_section"]["new_key"] = "another_value"
25
26# To update the original file, just call update:
27# updater.update()
28
29# Or to see the result as a string:
30print(str(updater))