Replacing substrings within a string is a common task in Python. The replace() method allows you to replace occurrences of a substring with another substring.
Basic Syntax
string.replace(old, new, count)
Where:
- old: The substring you want to replace.
- new: The substring you want to replace it with.
- count: (Optional) Number of occurrences to replace.
Example Usage
text = "Hello World"
new_text = text.replace("World", "Python")
print(new_text) # Output: Hello Python
Replacing Multiple Occurrences
Replace all occurrences of a substring:
text = "banana"
new_text = text.replace("a", "o")
print(new_text) # Output: bonono
Limiting Replacements
Use the count parameter to limit replacements:
new_text = text.replace("a", "o", 1)
print(new_text) # Output: bonana
Conclusion
The replace() method is a straightforward way to manipulate strings in Python. It’s essential for text processing and data cleaning tasks.