Interesting facts about strings in Python
In this article, we will learn about some Interesting facts about strings in Python 3.x. Or earlier.
- Immutability
- Auto-detection of escape sequences
- Direct slicing
- Indexed access
Immutability
This means that there is no permission of modification on <string>type and we only have read only access to the strings.
Example
inp = 'Tutorials point'
# output
print(inp)
# assigning a new value to a particular index in a
string
inp[0] = 't'
print(inp) # raises an error
Output
TypeError: 'str' object does not support item assignment
Auto-detection of escape sequences
The strings containing backslash are automatically detected as an escape
sequence.
Example
inp = 'Tutorials point'
# output
print(inp+”\n”+”101”)
Output
Tutorials point
101
Direct slicing
We all are aware of substring method in c or c+ +, Slicing does the same
operation in python. it takes two compulsory and 1 optional argument.
Compulsory arguments are start index (included) and end index(not included)
Optional argument is the step or say increment or decement value. By default
it is 1.
Example
Live Demo
inp = 'Tutorials point'
# output
print(inp[0:5])
Output
Tutor
Indexed access
As all elements are stored in a contiguous format, therefore we can access
elements directly by the help of index.
Example
Live Demo
inp = 'Tutorials point'
# output
print(inp[0]+inp[1])
Output
Tu
Conclusion
In this article, we learnt about Interesting facts about strings in Python 3.x. Or earlier.
Published on 29-Aug-2019 14:14:35
