How to Concatenate Strings
You can use the + operator to concatenate strings.
word1 = 'Deepak '
word2 = 'Nishad'
print(word1 + word2)
New York
How to Replace Part of a String
The replace() method replaces a part of the string with another
str1 = 'Deepak Nishad'.replace('Nishad', 'Singh')
Deepak Singh
How to Count
Specify what to count as an argument.
In this case, we are counting how many spaces exist in “Rio de Janeiro”, which is 2.
word = "Rio de Janeiro"
print(word.count(' '))
2
How to Split a String in Python
Splitting a string into smaller parts is a very common task. To do so, we use the split() method in Python.
Example 1: use whitespaces as delimiters
In this example, we split the phrase by whitespaces creating a list named my_words with five items corresponding to each word in the phrase.
my_phrase = "let's go to the beach"
my_words = my_phrase.split(" ")
for word in my_words:
print(word)
print(my_words)
How to Remove All White Spaces in a String in Python
Notice that the \s represents not only space ' ', but also form feed \f, line feed \n, carriage return \r, tab \t, and vertical tab \v.
In summary, \s = [ \f\n\r\t\v].
The + symbol is called a quantifier and is read as ‘one or more’. This means that it will consider, in this case, one or more white spaces since it is positioned right after the \s.
import re
txt = "The rain in Spain"
no_space = re.sub(r"\s", "", txt)
print(no_space)
TheraininSpain
How to Handle Multiline Strings in Python
Triple Quotes
To handle multiline strings in Python you use triple quotes, either single or double.
This first example uses double quotes.
long_text = """This is a multiline,
a long string with lots of text,
I'm wrapping it in triple quotes to make it work."""
print(long_text)
#output:
#This is a multiline,
#
#a long string with lots of text,
#
#I'm wrapping it in triple quotes to make it work.
Now the same as before, but with single quotes:
long_text = '''This is a multiline,
a long string with lots of text,
I'm wrapping it in triple quotes to make it work.'''
print(long_text)
#output:
#This is a multiline,
#
#a long string with lots of text,
#
#I'm wrapping it in triple quotes to make it work.