Python Strings
Clash Royale CLAN TAG#URR8PPP <!--
main_leaderboard, all: [728,90][970,90][320,50][468,60]-->
Python Strings
❮ Previous
Next ❯
String Literals
String literals in python are surrounded by either single quotation marks, or double quotation marks.
'hello' is the same as "hello".
Strings can be output to screen using the print function. For example: print("hello").
Like many other popular programming languages, strings in Python are arrays of bytes representing unicode characters. However, Python does not have a character data type, a single character is simply a string with a length of 1. Square brackets can be used to access elements of the string.
Example
Get the character at position 1 (remember that the first character has the
position 0):
a = "Hello, World!"
print(a[1])
Run example »
Example
Substring. Get the characters from position 2 to position 5 (not included):
b = "Hello, World!"
print(b[2:5])
Run example »
Example
The strip() method removes any whitespace from the beginning or the end:
a = " Hello, World! "
print(a.strip()) # returns "Hello, World!"
Run example »
Example
The len() method returns the length of a string:
a = "Hello, World!"
print(len(a))
Run example »
Example
The lower() method returns the string in lower case:
a = "Hello, World!"
print(a.lower())
Run example »
Example
The upper() method returns the string in upper case:
a = "Hello, World!"
print(a.upper())
Run example »
Example
The replace() method replaces a string with another string:
a = "Hello, World!"
print(a.replace("H", "J"))
Run example »
Example
The split() method splits the string into substrings if it finds instances of the separator:
a = "Hello, World!"
print(a.split(",")) #
returns ['Hello', ' World!']
Run example »
<!--
mid_content, all: [300,250][336,280][728,90][970,250][970,90][320,50][468,60]-->
Command-line String Input
Python allows for command line input.
That means we are able to ask the user for input.
The following example asks for the user's name, then, by using theinput() method, the program prints the name to
the screen:
Example
demo_string_input.py
print("Enter your name:")
x = input()
print("Hello, " + x)
Save this file as demo_string_input.py, and load it through the command line:
C:UsersYour Name>python demo_string_input.py
Our program will prompt the user for a string:
Enter your name:
The user now enters a name:
LinusThen, the program prints it to screen with a little message:
Hello, Linus
❮ Previous
Next ❯