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String Methods · Examples
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String Methods Examples

Short, runnable programs that show python string methods in action. Read the explanation, press Run, then change the code and try your own ideas. New to the topic? Start with the Python String Methods lesson.

1Normalising an email address

Emails are case-insensitive and often typed with stray spaces, so clean them before comparing or storing.

Normalising an email address 
typed = "  Maya.Rao@Example.COM \n"
email = typed.strip().lower()
print(email)
print(email.endswith("@example.com"))
print(email.split("@")[0])
Expected outputmaya.rao@example.com
True
maya.rao

2Splitting a CSV-style line

split() turns one line of text into a list, then each field can be cleaned and converted.

Splitting a CSV-style line 
line = "Notebook, 3, 2.50"
item, qty, price = [p.strip() for p in line.split(",")]
total = int(qty) * float(price)
print(item, total)
Expected outputNotebook 7.5

3Building a URL slug

Chaining methods turns an article title into a lowercase, dash-separated slug.

Building a URL slug 
title = "  Top 5 Python Tricks for Beginners "
slug = "-".join(title.lower().split())
print(slug)
Expected outputtop-5-python-tricks-for-beginners

4Counting words and finding a term

split() plus len() counts words; count() and find() search inside text.

Counting words and finding a term 
review = "Great phone, great battery, poor camera"
print("Words:", len(review.split()))
print("great appears", review.lower().count("great"), "times")
print("camera at index", review.find("camera"))
Expected outputWords: 6
great appears 2 times
camera at index 33

5Aligned receipt lines

ljust() and rjust() line up columns in plain text output.

Aligned receipt lines 
items = [("Tea", 3.5), ("Sandwich", 7.25), ("Cake", 4.0)]
for name, price in items:
    print(name.ljust(10, ".") + f"{price:.2f}".rjust(6))
Expected outputTea.......  3.50
Sandwich..  7.25
Cake......  4.00

6Reading key=value settings with partition

partition() always returns three parts, so unpacking is safe even when the separator is missing.

Reading key=value settings with partition 
lines = ["theme = dark", "volume=7", "debug"]
settings = {}
for line in lines:
    key, sep, value = line.partition("=")
    settings[key.strip()] = value.strip() if sep else "true"
print(settings)
Expected output{'theme': 'dark', 'volume': '7', 'debug': 'true'}

Practise next

Python String Methods exercises → Back to the lesson

Python Strings examplesPython f-Strings examplesPython List Methods examplesPython Slicing examples