How to Index Strings in Python
See Python: Tips and Tricks for similar articles.Indexing is the process of finding a specific element within a sequence of elements through the element's position. Remember that strings are basically sequences of characters. We can use indexing to find a specific character within the string.
- If we consider the string from left to right, the first character (the left-most) is at position
0
. - If we consider the string from right to left, the first character (the right-most) is at position
-1
.
The table below illustrates this for the phrase "MONTY PYTHON".
The following code shows how to find characters by position using indexing.
phrase = "Monty Python"
first_letter = phrase[0]
#[M]onty Python
print(first_letter)
last_letter = phrase[-1]
#Monty Pytho[n]
print(last_letter)
fifth_letter = phrase[4]
#Mont[y] Python
print(fifth_letter)
third_letter_from_end = phrase[-3]
#Monty Pyt[h]on
print(third_letter_from_end)
The expected output for each call to print()
is shown in square brackets in the preceding comment.
Related Articles
- Fixing WebVTT Times with Python
- Using Python to Convert Images to WEBP
- Scientific Notation in Python
- Understanding Python’s __main__ variable
- Converting Leading Tabs to Spaces with Python
- pow(x, y, z) more efficient than x**y % z and other options
- A Python Model for Ping Pong Matches
- Bulk Convert Python files to IPython Notebook Files (py to ipynb conversion)
- Python’s date.strftime() slower than str(), split, unpack, and concatenate?
- Basic Python Programming Exercise: A Penny Doubled Every Day
- Bi-directional Dictionary in Python
- How to find all your Python installations on Windows (and Mac)
- Associate Python Files with IDLE
- Change Default autosave Interval in JupyterLab
- Python: isdigit() vs. isdecimal()
- Python Clocks Explained
- Python Color Constants Module
- Maximum recursion depth exceeded while calling a Python object
- When to use Static Methods in Python? Never
- Finally, a use case for finally – Python Exception Handling
- Creating an Email Decorator with Python and AWS
- Python Coding Challenge: Two People with the Same Birthday
- How to Create a Simple Simulation in Python – Numeric Data
- Collatz Conjecture in Python
- Simple Python Script for Extracting Text from an SRT File
- Python Virtual Environments with venv
- Mapping python to Python 3 on Your Mac
- How to Make IDLE the Default Editor for Python Files on Windows
- How to Do Ternary Operator Assignment in Python
- How to Convert Seconds to Years with Python
- How to Create a Python Package
- How to Read a File with Python
- How to Check the Operating System with Python
- How to Use enumerate() to Print a Numbered List in Python
- How to Repeatedly Append to a String in Python
- Checking your Sitemap for Broken Links with Python
- How to do Simultaneous Assignment in Python
- Visual Studio Code - Opening Files with Python open()
- How to Slice Strings in Python
- How Python Finds Imported Modules
- How to Merge Dictionaries in Python
- How to Index Strings in Python (this article)
- How to Create a Tuple in Python